Pre-AP Physics Final Exam Review
1. A 6.0 cm object is placed 30.0 cm from a lens. The resulting image height has a magnitude of 2.0 cm; and
the image is inverted. What is the focal length of the lens?
2. Light, which is incident upon the eye is refracted several times before it reaches the retina. As light
passes through the eye, at which boundary does the majority of the overall refraction occur?
a. Lens/aqueous humor
c. Lens/vitreous humor
e. Vitreous humor/retina
b. Air/cornea
d. Aqueous humor/iris
3. A scuba diver shines a flashlight from beneath the surface of water (n=1.33) such that the light strikes the
water-air boundary with an angle of incidence of 43°. At what angle is the beam refracted?
4. A spherical concave mirror has a radius of curvature of 6.0 cm. At what distance from the mirror should a
6.0 cm object be placed to obtain an image that is 48 cm tall?
5. A concave mirror in an amusement park has a radius of curvature of 4.0 m. A child stands in front of the
mirror so that she appears 2.5 taller than her actual height. If the image is upright, how far is she
standing from the mirror?
6. Two golf carts have horns that emit sound with a frequency of 390 Hz. The golf carts are traveling toward
one another, each traveling with a speed of 9.0 m/s with respect to the ground. What frequency do the
drivers of the carts hear? The speed of sound at the golf course is 343 m/s.
7. Two boys are whispering in the library. The radiated sound power from one boy’s mouth is 1.2x10-9 W
and it spreads out uniformly in all directions. What is the minimum distance the boys must be away from
the librarian so that she will not be able to hear them. The threshold of hearing for the librarian is
1.00x10-12 w/m2.
8. A certain string on a piano is tuned to produce a middle C (f=261.63 Hz) by carefully adjusting the tension
in the string. For a fixed wavelength, what is the frequency when this tension is doubled?
9. A 2.00 cm tall object is placed 40.0 cm from a lens. The resulting image is 8.00 cm tall and upright relative
to the object. Determine the focal length of the lens.
Heat is added to a 1.0 kg solid sample of a material at -200 °C. The figure shows the temperature of the
material as a function of the heat added.
200
100
-100
100
200
-200
Temperature (°C)
300
400
500
Heat Added (kcal)
10. Which one of the following statements concerning this substance is true?
a. It boils at 300°C.
d. It can coexist as a solid and a liquid at -50°C.
b. It melts at -200°C.
e. It can exist as a solid, liquid, and gas at 150°C.
c. It is liquid at 200°C.
11. What is the latent heat of fusion of this material?
12. What is the latent heat of vaporization of this material?
13. What is the specific heat capacity of this substance in its solid state?
14. What is the specific heat capacity of this substance in its liquid state?
15. Judy places a .150 kg of boiling water in a thermos bottle. How many kilograms of ice at -12.0 °C must
Judy add to the thermos so that the equilibrium temperature of the water is 75.0°C?
A 2.0 kg pistol fires a 1.0 g bullet with a muzzle speed of 1000 m/s. The bullet then strikes a 10 kg wooden
block resting on a horizontal frictionless surface. The block and the embedded bullet then slide across the
surface.
16. The explosive charge in the pistol acts for .001 s. what is the average force exerted on the bullet while it is
being fired?
17. What is the speed of the “bullet+block” system immediately after the bullet is embedded in the block?
A stationary 4 kg shell explodes into three pieces. Two of the fragments have a mass of 1 kg each and move
along paths down with a speed of 10 m/s. The third fragment moves upward as shown.
2 kg
1 kg
60° 60°
1 kg
18. What is the speed of the third fragment?
A1
A2
A3
A4
19. For the above circuit R1=15 Ω, R4 and 5= 30 Ω. R2 and R3 are both 10 Ω. The voltage is 160 V.
a. What is the total resistance of the circuit?
b. What is the total current of the circuit?
c. How much current is flowing through each resistor?
20. How is current affected if the number of charge carriers decreases?
a. The current increases.
b. The current decreases.
c. The current initially decreases and then is gradually restored.
d. The current is not affected.
Circuit A
Circuit B
21. Circuit A is a ____________ circuit
a. series
c. complex
b. parallel
22. Circuit B is a _________ circuit.
a. series
c. complex
b. parallel
23. If the resistors in each circuit are the same, which circuit will have less overall resistance?
a. A
c. same
b. B
d. not enough information given
24. In which circuit is the current the same throughout?
a. A
c. both
b. B
d. neither
25. In which circuit is the potential difference across each resistor the same. (assume the resistors are not
the same)
a. A
c. both
b. B
d. neither
26. A cannon recoils from launching a cannonball. The speed of the cannon’s recoil is small because the
a. force against the cannon is relatively small
b. momentum of the cannon is unchanged
c. cannon has far more mass than the cannonball
d. all of the above is correct
27. A rubber ball and a lump of putty have equal masses. They are thrown with equal speed against a wall.
The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which
object experiences the greater change in momentum?
a. the ball
b. the putty
c. both experience the same change in momentum
d. cannot be determined
28. Momentum is conserved for _____.
a. elastic collisions only
c. both elastic and inelastic collisions
b. inelastic collisions only
29. Kinetic Energy is conserved for _____.
a. elastic collisions only
c. both elastic and inelastic collisions
b. inelastic collisions only
30. Which of the following is the number of cycles or vibrations per unit of time?
a. amplitude
c. frequency
b. period
d. revolution
31. How are frequency and period related in simple harmonic motion?
a. They are directly related.
b. They are inversely related.
c. They both measure the time per cycle.
d. They both measure the number of cycles per unit of time.
32. In the waveform of the longitudinal wave shown above, the compressed regions correspond to
a. the wavelength.
c. troughs.
b. crests.
d. the mass.
33. In the waveform of the longitudinal wave shown above, the stretched regions correspond to
a. the wavelength.
c. troughs.
b. crests.
d. the mass.
34. The Doppler effect occurs with
a. only sound waves.
c. only water waves.
b. only compressional waves.
d. all waves.
35. For a standing wave in an air column in a pipe that is open at both ends, there must be at least
a. one node and one antinode.
c. two antinodes and one node.
b. two nodes and one antinode.
d. two nodes and two antinodes.
36. If one end of a pipe is closed,
a. all harmonics are present.
c. only odd harmonics are present.
b. no harmonics are present.
d. only even harmonics are present.
37. Which portion of the electromagnetic spectrum is used in a cell phone?
a. infrared waves
c. radio waves
b. microwaves
d. gamma waves
38. Which portion of the electromagnetic spectrum is used in a microscope?
a. infrared waves
c. visible light
b. gamma rays
d. ultraviolet light
39. In the vacuum of outer space, electromagnetic radiation of short wavelengths
a. travels slower as radiation of long wavelengths.
b. travels the same speed as radiation of long wavelengths.
c. travels faster than radiation of long wavelengths.
d. can travel both faster and slower than radiation of long wavelengths.
40. The farther light is from a source,
a. the more light is available per unit
c. the more bright light becomes.
area
b. the more condensed light becomes.
d. the more spread-out light becomes
41. When a straight line is drawn perpendicular to a flat mirror at the point where an incoming ray strikes the
mirror’s surface, the angles of incidence and reflection are measured from the normal and
a. the angles of incidence and reflection are equal.
b. the angle of incidence is greater than the angle of reflection.
c. the angle of incidence is less than the angle of reflection.
d. the angle of incidence can be greater than or less than the angle of reflection.
42. Which of the following best describes the image produced by a flat mirror?
a. virtual, inverted, and magnification greater than one
b. real, inverted, and magnification less than one
c. virtual, upright, and magnification equal to one
d. real, upright, and magnification equal to one
43. Which of the following is NOT an additive primary color of light?
a. yellow
c. red
b. blue
d. green
44. A bookcover appears yellow. What primary color(s) of light are being reflected?
a. red and green
c. yellow
b. blue and green
d. cyan and magenta
45. A shirt appears black. What primary color(s) of light are being reflected?
a. all of them
c. blue and green
b. red and blue
d. none of them