Physics for Health Sciences Exam Materials - 1470 Verified Questions by Quizplus

Physics for Health Sciences

Exam Materials

Course Introduction

Physics for Health Sciences is an introductory course designed to provide students pursuing careers in healthcare with a foundational understanding of physics principles relevant to medical and biological applications. The course covers key concepts including mechanics, fluid dynamics, thermodynamics, electricity, magnetism, optics, and radiation, emphasizing their roles in human physiology and medical technology. Through real-world examples and practical case studies, students learn how physics contributes to diagnostic tools such as X-rays, MRIs, and ultrasounds, as well as the physical basis for topics like blood flow, respiration, and radiation safety. This course prepares students to apply physics concepts in clinical settings and enhances their scientific literacy for advanced health science studies.

Recommended Textbook

College Physics Strategic Approach with Mastering Physics 2nd Edition by Randall D. Knight

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Chapter 1: Representing Motion

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Q1) If you needed to estimate the number of gallons of gasoline burned in the United States each year by automobiles,what quantities would you need to assume? What formula would you need to use?

Answer: If you assumed

N = total number of cars

M = average number of miles driven each year per car

R = average number of miles per gallon

Then

Total number of gallons = 11ea9375_ac90_5c24_b28d_b5bdac389478_TB2706_11

Q2) A CD-ROM disk can store approximately 600.0 megabytes of information.If an average word requires 9.0 bytes of storage,how many words can be stored on one disk?

A)6.7 × 107 words

B)5.4 × 109 words

C)2.1 × 107 words

D)2.0 × 109 words

Answer: A

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Chapter 2: Motion in One Dimension

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Q1) It is physically impossible for an object to have a negative acceleration and yet be speeding up.

A)True

B)False

Answer: False

Q2) A skier begins skiing straight down a hill having a constant slope,starting from rest.If friction is negligible,as the skier goes down the hill,his/her

A)acceleration is constant,with a value less than 10 m/s/s.

B)acceleration is constant,with a value of roughly 10 m/s/s.

C)acceleration increases with time.

D)acceleration is zero.

Answer: A

Q3) Negative acceleration is called deceleration because an object is slowing down. A)True

B)False

Answer: False

Q4) What quantity is measured by your speedometer (be as specific as possible)?

Answer: Your speedometer tells you the instantaneous speed of your car.

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Chapter 3: Vectors and Motion in Two Dimensions

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Q1) A glider is tugged by an airplane at 81 m/s when it is released.If the original speed was along the horizontal and the glider is now under a constant acceleration of 2.4 m/s2 at 1.1° below the horizontal due to air drag,how long will it take to reach the ground 5.7 km below?

A)500 s

B)250,000 s

C)2.2 s

D)4.8 s

Answer: A

Q2) A projectile is fired from the origin (at y = 0 m)as shown in the figure.The initial velocity components are vox = 940 m/s and voy = 96 m/s.The projectile reaches maximum height at point P,then it falls and strikes the ground at point Q.In the figure,the y-coordinate of point P is closest to:

A)470 m

B)45,550 m

C)45,080 m

D)940 m

E)90,160 m

Answer: A

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Page 5

Chapter 4: Forces and Newtons Laws of Motion

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Q1) A dog is standing in the tail bed of a pickup truck.The tail bed is coated with ice,causing the force of friction between the dog and the truck to be zero.The truck is initially at rest,and then accelerates to the right,moving along a flat road.As seen from a stationary observer (watching the truck move to the right),the dog

A)does not move left or right,but simply slides toward the back of the truck.

B)moves to the right,but not as quickly as the truck is moving to the right,causing it to slide toward the back of the truck.

C)moves to the right at the same rate as the truck,so it doesn't slide.

D)moves to the left,as the truck moves to the right,causing the dog to slide toward the back of the truck.

Q2) When decelerating quickly in a car,you feel as if you are being thrown forward in your seat.Which one of Newton's Laws most directly explains this effect? Explain your reasoning.

Q3) A satellite is in orbit around the earth.The satellite pulls just as hard on the earth as the earth pulls on the satellite.

A)True

B)False

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Chapter 5: Applying Newtons Laws

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Q1) Jason takes off across level water on his jet-powered skis.The combined mass of Jason and skis is 75 kg (the mass of the fuel is negligible).The skis have a thrust of 200 N and a coefficient of kinetic friction on water of 0.1.Unfortunately,the skis run out of fuel after only 67 s.How far has Jason traveled when he finally coasts to a stop?

A)10,000 m

B)7600 m

C)5400 m

D)3800 m

Q2) A 6.0 kg box slides down an inclined plane that makes an angle of 39° with the horizontal.If the coefficient of kinetic friction is 0.19,at what rate does the box accelerate down the slope? (Use g = 9.8 m/s2. )

A)4.7 m/s2

B)5.2 m/s2

C)5.5 m/s2

D)6.2 m/s2

Q3) Explain,from a force standpoint,how a rear spoiler on a race car helps keep the car on the road at high speeds.

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Chapter 6: Circular Motion,orbits,and Gravity

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Q1) A satellite is in orbit around a planet.The orbital radius is 34.0 km and the gravitational acceleration at that height is 2.3 m/s2.What is the satellite's orbital speed?

A)280 m/s

B)8.8 m/s

C)28 m/s

D)88 m/s

Q2) Calculate the angular speed,in rad/s of a flywheel turning at 520.0 rpm.

A)54.44 rad/s

B)8.656 rad/s

C)40.83 rad/s

D)60.97 rad/s

Q3) At a given point above the surface of Earth,the gravitational acceleration is equal to 7.8 m/s2.The altitude of this point,above the surface of Earth,in km,is closest to:

A)770

B)970

C)1500

D)2000

E)2400

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Chapter 7: Rotational Motion

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Q1) The table shows the masses and the coordinates x and y of a set of three point masses in the x-y plane.The masses are interconnected by light struts,forming a rigid body.The moment of inertia of the rigid body,through the center of mass and perpendicular to the x-y plane,is closest to:

A)3000 kg m2

B)3200 kg m2

C)3400 kg m2

D)3600 kg m2

E)3800 kg m2

Q2) A torque of 12 N m is applied to a solid,uniform disk of radius 0.50 m.If the disk accelerates at 5.7 rad/s2,what is the mass of the disk?

A)17 kg

B)13 kg

C)8.5 kg

D)4.3 kg

Q3) There must be equal amounts of mass on either side of the center of mass.

A)True

B)False

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Chapter 8: Equilibrium and Elasticity

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Q1) A car is being towed at constant velocity on a horizontal road using a horizontal chain.The tension in the chain must be equal to the weight of the car in order to maintain constant velocity.

A)True

B)False

Q2) Suppose that a heavy person and a light person are balanced on a teeter-totter made of a plank of wood.Each person now moves in toward the fulcrum a distance of 25 cm.What effect will this have on the balance of the teeter-totter?

A)The teeter-totter will remain in balance.

B)The heavy person's end will go down.

C)The light person's end will go down.

D)One cannot tell whether either end will rise or fall without knowing the relative mass of the plank.

E)Only if the plank has significant mass will the light person's end go down.

Q3) A stone rolls down a sloping hillside.The normal force that the surface of the hill exerts on the stone is equal to the stone's weight.

A)True

B)False

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Chapter 9: Momentum

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Q1) A girl of mass 55 kg throws a ball of mass 0.8 kg against a wall.The ball strikes the wall horizontally with a speed of 25 m/s,and it bounces back with this same speed.The ball is in contact with the wall 0.05 s.What is the average force exerted on the wall by the ball?

A)800 N

B)400 N

C)55,000 N

D)27,500 N

E)13,750 N

Q2) When a baseball player hits a home run,the baseball receives a greater impulse from the bat than the bat does from the ball.

A)True

B)False

Q3) In a ballistics test,a bullet traveling horizontally strikes and embeds itself in a large block that is free to move.During this process,the bullet transfers all of its momentum to the block.

A)True

B)False

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Chapter 10: Energy and Work

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Q1) Viscous friction allows oil to reduce the heating and wear of moving machine parts.But viscous friction depends on velocity.Is that a nonconservative force?

Q2) A child swings on a ball of mass m on a rope in a uniform,vertical circle of radius r at a constant speed v.How much work is done by the centripetal force on the ball during one complete revolution?

Q3) Kinetic energy is conserved only in perfectly elastic collisions,but momentum is conserved in all collisions.

A)True

B)False

Q4) A cannon recoils after it fires a shell.If you measure the range of the shell,can you find the energy released by the gunpowder?

Q5) A spring stretches by 21.0 cm when a 135 N object is attached.What is the weight of a fish that would stretch the spring by 31.0 cm?

A)199 N

B)91 N

C)145 N

D)279 N

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Page 12

Chapter 11: Using Energy

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Q1) A heat engine has a maximum possible efficiency of 0.800.If it operates between a deep lake with a constant temperature of 287.0 K and a hot reservoir,what is the temperature of the hot reservoir?

A)1440 K

B)359 K

C)517 K

D)646 K

Q2) Which of the following is a TRUE statement?

A)The second law of thermodynamics is a consequence of the first law of thermodynamics.

B)It is possible for heat to flow spontaneously from a hot body to a cold one or from a cold one to a hot one,depending on whether or not the process is reversible or irreversible.

C)It is not possible to convert work entirely into heat.

D)It is impossible to transfer heat from a cooler to a hotter body.

E)All of these statements are false.

Q3) Does an increase in entropy increase or decrease the ability of a system to do work?

Q4) Is temperature a macroscopic or a microscopic concept?

Q5) Is liberating heat through combustion a reversible or an irreversible process?

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Chapter 12: Thermal Properties of Matter

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Q1) A nail penetrates into wood when hammered more easily than the hammer (if it misses the nail)because

A)the pressure of the nail on the wood is higher than the pressure of the hammer on the wood.

B)the force of the nail on the wood is higher than the force of the hammer on the wood. C)Both of the above statements are true.

Q2) A heat conducting rod,1.60 m long,is made of an aluminum section,0.90 m long,and a copper section,0.70 m long.Both sections have a cross-sectional area of 0.0004 m2.The aluminum end and the copper end are maintained at temperatures of 30°C and 170°C,respectively.The thermal conductivities of aluminum and copper are 205 and 385 W/m K,respectively.The rate at which heat is conducted in the rod is closest to:

A)9.0 W

B)7.9 W

C)10 W

D)11 W

E)12 W

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Page 14

Chapter 13: Fluids

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Sample Questions

Q1) How much would a lead brick 2.0 in × 2.0 in × 8.0 in weigh if placed in oil with density = 0.92 g/cm3? ( Pb = 11.4 g/cm3)

A)5.5 kg

B)0.34 kg

C)6 kg

D)0.48 kg

Q2) Water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases to 86% of its previous value.If the speed of the water in the larger section of the pipe was 32 m/s,what is its speed in this smaller section?

A)43 m/s

B)37 m/s

C)28 m/s

D)24 m/s

Q3) If the gauge pressure at a certain depth in Lake Michigan is 3.5 atmospheres,the absolute pressure at that depth is 4.5 atm.

A)True

B)False

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Chapter 14: Oscillations

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Q1) A rotating merry-go-round has an angular velocity of 0.184 rad/s.Find the period of rotation of the merry-go-round.

A)34.1 s

B)5.43 s

C)13.6 s

D)3.91 s

Q2) The period of a simple pendulum in a grandfather clock on another planet is 1.66 s.What is the acceleration due to gravity on this planet? Assume that the length of the pendulum is 1.00 m.

A)14.3 m/s2

B)13.3 m/s2

C)15.7 m/s2

D)17.2 m/s2

Q3) A mass attached to a spring would vibrate with the same frequency in an orbiting satellite as it does at Earth's surface,but a pendulum would not have the same frequency that it has at Earth's surface.

A)True

B)False

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Page 16

Chapter 15: Traveling Waves and Sound

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Q1) A glass window is installed in the window space and the intensity level of the sound entering through the window is reduced from 72 dB to 47 dB.The factor,by which the acoustic power entering the chamber is reduced by the glass window,is closest to:

A)3.2 × 10-3

B)2.2 × 10-2

C)5.6 × 10-2

D)1.0 × 10-1

E)1.5 × 10-1

Q2) The density of aluminum is 2700 kg/m3.If transverse waves propagate at 34 m/s in a 4.6 mm diameter aluminum wire,what is the tension on the wire?

A)52 N

B)31 N

C)42 N

D)62 N

Q3) As light passes from air into glass,its wavelength decreases and its frequency increases so that its speed does not change.

A)True

B)False

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Chapter 16: Superposition and Standing Waves

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Q1) The tension in each of two strings is adjusted so that both vibrate at exactly 666 Hz.The tension in one of the strings is then increased slightly.As a result,six beats per second are heard when both strings vibrate.What is the new frequency of the string that was tightened?

A)672 Hz

B)660 Hz

C)669 Hz

D)663 Hz

Q2) An open pipe,0.92 m long,vibrates in the second overtone with a frequency of 584 Hz.In this situation,the speed of sound in air,in SI units,is closest to:

A)358

B)349

C)353

D)344

E)363

Q3) A string fixed at both ends that is vibrating in its eighth harmonic will have 8 antinodes and 9 nodes.

A)True

B)False

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Chapter 17: Wave Optics

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Q1) A single slit with width 820 nm is illuminated with light of wavelength 555 nm.How many minima occur in the angular range from = 0° to = ±26°?

A)1.3 minima

B)0.65 minima

C)1.16 minima

D)0.59 minima

Q2) In Situation 17.1,the two wavelengths of light in the 400 nm to 800 nm wavelength band that are most strongly reflected,in nm,are closest to:

A)410 and 700

B)430 and 720

C)450 and 740

D)470 and 760

E)490 and 780

Q3) A single slit gives destructive interference when ml = w sin .A double slit gives constructive interference when ml = d sin .Explain the role of d and w for the single and double slit.

Q4) What is the difference between diffraction and interference?

Q5) How wide is a single slit that gives its first minimum at 90°?

Q6) Why are only about 6-10 minima seen when light illuminates a single slit?

Page 19

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Chapter 18: Ray Optics

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Q1) In Situation 18.2,the character of the image is:

A)real and erect

B)real and inverted

C)virtual and erect

D)virtual and inverted

E)indeterminate

Q2) In Situation 18.1,a ray originating at O,crosses the brine-oil interface at a point 0.60 m from the axis.The ray continues and emerges into the air.The angle that the ray in the air makes with the vertical is closest to:

A)48°

B)51°

C)54°

D)57°

E)60°

Q3) If an object is placed outside the focal point of a converging lens,the image is

A)real,inverted,and enlarged.

B)virtual,upright,and reduced.

C)virtual,upright,and enlarged.

D)real,upright,and reduced.

E)real,inverted,and reduced.

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Chapter 19: Optical Instruments

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Q1) The objective lens of an astronomical telescope has a focal length of 60 cm and the eyepiece has a focal length of 2 cm.How far apart should the lenses be placed in order to form a final image at infinity?

A)44 cm

B)58 cm

C)76 cm

D)60 cm

E)62 cm

Q2) A 35 mm camera equipped with a 40 mm focal length lens is used to photograph a tree 17 m tall.The aperture of the lens is set at f/8.A 32 mm high image of the tree on the film is required.The required distance,between the tree and the camera,to take the photograph is closest to:

A)21 m

B)22 m

C)23 m

D)24 m

E)26 m

Q3) What optical element would you need and how would you use it to determine the focal length of a concave lens.

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Page 21

Chapter 20: Electric Fields and Forces

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Q1) If the electric field strength is 500 N/C at a point 2 cm from an infinite line of charge,the field will be 125 N/C at a point 4 cm from this line.

A)True

B)False

Q2) A metal sphere is insulated electrically and is given a charge.If 25 electrons are added to the sphere in giving a charge,how many Coulombs are added to the sphere?

A)- 4.0 × 10-18 C

B)- 4.0 × 10-20 C

C)- 40 C

D)- 25 C

Q3) Two infinite parallel plastic sheets contain equal negative charge densities uniformly spread over their surfaces.The electric field is zero everywhere between these sheets,not just midway between them.

A)True

B)False

Q4) Two protons slightly separated from one another form an electric dipole.

A)True

B)False

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Chapter 21: Electric Potential

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Q1) If the voltage at a point in space is zero,then the electric field must be A)negative.

B)zero.

C)uniform.

D)positive.

E)Impossible to determine based on the information given.

Q2) A 100.0 pF capacitor consists of two circular plates of radius 0.40 mm.How far apart are the plates? (The value of o is 8.85 \(\times\) 10S1U1P1-12S1S1P0 C2/N·m2. )

A)0.044 m

B)0.022 m

C)0.0050 m

D)0.0025 m

Q3) The capacitance of a capacitor depends on A)the charge on it.

B)the potential difference across it.

C)the energy stored in it.

D)More than one of these

E)None of these

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Page 23

Chapter 22: Current and Resistance

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Q1) A 3.0 V battery that can store 400.0 J of energy is connected to a resistor.How much electrical charge must flow between the battery's terminals to completely drain the battery if it is fully charged?

A)130 C

B)0.01 C

C)1200 C

D)0.02 C

Q2) The direction of the current I in a metal wire is the same as the direction of the internal electric field in the wire but it is opposite to the direction the electrons are moving.

A)True

B)False

Q3) How much current will be flowing through a 40.0 m length of copper wire with radius 4.0 mm if it is connected to a source supplying 16.0 V? (The resistivity of copper is 1.68 × 10-8 ·m. )

A)1200 A

B)9.5 x 108 A

C)68 nA

D)710 A

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Page 24

Chapter 23: Circuits

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Q1) In the figure shown,what is the power dissipated in the 2 ohm resistance in the circuit?

A)5.33 W

B)8.0 W

C)6.67 W

D)2.67 W

E)3.56 W

Q2) Which will drain a battery faster,a circuit with a resistance of 10 k or a circuit with a resistance of 1 ?

Q3) If the graph of the current through a resistor as a function of the potential difference across it is a straight line with a positive slope passing through the origin,the resistor obeys Ohm's law and the slope of this graph is equal to the resistance of this resistor.

A)True

B)False

Q4) The high potential end of a resistor is the end at which the current enters it. A)True

B)False

Q5) Of voltmeters and ammeters,which is/are connected in series?

Q6) Why is it appropriate that electromotive force be measured in volts?

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Chapter 24: Magnetic Fields and Forces

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Q1) A 5 m length of wire carrying a current of 5 A lies on a horizontal table with a rectangular top of dimensions 0.300 m × 0.400 m.The ends of the wire are attached to opposite ends of a diagonal of the rectangle.A vertical magnetic field of 0.30 T is present.What magnetic force acts on this segment of wire?

A)0.75 N

B)1.1 N

C)7.5 N

D)zero

E)The force cannot be determined without knowing the shape of the length of wire.

Q2) The net magnetic field inside a conductor must be zero.

A)True

B)False

Q3) If you were to cut a small permanent bar magnet in half,

A)one piece would be a magnetic north pole and the other piece would be a south pole.

B)neither piece would be magnetic.

C)each piece would in itself be a smaller bar magnet with both north and south poles. D)None of these statements is true.

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Chapter 25: Electromagnetic Induction and Electromagnetic Waves

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Q1) A 2.0 m conductor is formed into a square and placed in the horizontal xy-plane.A magnetic field is oriented 30.0º above the horizontal with a strength of 9.0 T.What is the magnetic flux through the conductor?

A)1.1 T m2

B)1.9 T m2

C)2.3 T m2

D)18 T m2

Q2) In the figure,a bar is in contact with a pair of parallel rails.A steady,uniform,magnetic field,perpendicular to the plane of the rails,is present.The bar is in motion with velocity .The induced current through the resistor R is:

A)zero

B)from a to b

C)from b to a

Q3) For electromagnetic waves,the electric and magnetic fields are often given in the form of sine waves.Explain how this model of electromagnetic waves does not violate the conservation of energy,especially when the sine functions are zero.

Q4) By how much are the electric and magnetic fields out of phase in an electromagnetic wave?

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Chapter 26: Ac Electricity

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Q1) In an AC circuit consisting of a resistor and capacitor in series with each other,the sum of the peak voltages across the resistor and across the capacitor must add up to the emf of the AC source.

A)True

B)False

Q2) Just as a 100 resistor always has the same resistance no matter what circuit it is in,likewise a 50 F capacitor always has the same reactance no matter what circuit it is in.

A)True

B)False

Q3) A series RLC circuit has a peak current of 1.0 A with a frequency of 66 kHz.If the resistance of the circuit is 51 k the capacitance of the circuit is 13 F,and the inductance of the circuit is 30 H,determine the average power of the circuit over one cycle.

A)26,000 W

B)77,000 W

C)7700 W

D)4100 W

Q4) If a circuit doubles its peak voltage,what happens to its rms voltage?

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Chapter 27: Relativity

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Q1) As measured in Earth's rest frame,a spaceship traveling at 0.964 c takes 11.2 y to travel between planets.How long does the trip appear to take for someone on the spaceship?

A)2.98 y

B)7.28 y

C)42.1 y

D)30.7 y

Q2) Calculate the amount of energy needed to accelerate an electron from 0.888 c to 0.991 c.Express your answer in MeV.

A)2.71 MeV

B)1.89 MeV

C)4.60 MeV

D)5.68 MeV

Q3) Calculate the speed at which a 0.272 kg object has the same momentum as a 1.30 kg object moving 0.515 c.

A)0.944 c

B)0.922 c

C)0.981 c

D)0.592 c

Q4) Explain why it is impossible for an object to travel at the speed of light.

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Chapter 28: Quantum Physics

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Q1) Find the wavelength (in nm)of a 6.32 eV photon.

A)196 nm

B)167 nm

C)216 nm

D)234 nm

Q2) An electron's de Broglie wavelength is 4.8 m.What is its speed?

A)1.5 × 102 m/s

B)1.3 × 105 m/s

C)8.3 × 102 m/s

D)4.2 × 106 m/s

Q3) A helium-neon laser emits light at 632.8 nm.If the laser emits 1.82 \(\times\) 1017 photons/second,what is its power output in mW?

A)57.2 mW

B)28.6 mW

C)37.2 mW

D)45.7 mW

Q4) A quantum of blue light carries more energy than a quantum of red light.

A)True

B)False

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Chapter 29: Atoms and Molecules

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Q1) Which of the statements below is true?

A)For a particular shell,an electron in a hydrogen atom with a higher angular momentum is more likely to be found in a smaller range of distances from the proton.

B)For a particular shell,an electron in a hydrogen atom with a higher angular momentum is more likely to be found in a larger range of distances from the proton.

C)For a particular shell,an electron in a hydrogen atom with a higher angular momentum will have a higher mechanical energy.

D)For a particular shell,an electron in a hydrogen atom with a higher angular momentum is more likely to be found farther from the proton.

Q2) When collisional excitation occurs,an electron collides with an atom and transfers all of its energy to that atom.

A)True

B)False

Q3) It is impossible for an electron to lose its spin angular momentum.

A)True

B)False

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Chapter 30: Nuclear Physics

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Q1) In a head-on collision,an alpha particle (Z = 2)of energy 8.20 MeV bounces straight back from a nucleus of charge 80.0 e.How close were the centers of the objects at closest approach?

A)2.81 × 10-14 m

B)3.39 × 10-12 m

C)6.56 × 10-15 m

D)2.17 × 10-14 m

Q2) The carbon in your body was formed in nuclear reactions in long-dead stars.How much energy was released when the right number of 4He nuclei combined to make 12C? M(4He)c2 = 3728.40 MeV.

A)7.320 MeV

B)3716 MeV

C)8.424 MeV

D)2.106 MeV

Q3) Approximately what fraction of the volume of an atom is made up of the nucleus?

A)10-15

B)10-6

C)10-1

D)10-24

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