MCAT Test Physics Practice Questions
1. The driver of a car sounds a horn while traveling toward a stationary person.Compared to the sound of the horn heard by the driver, the sound heard by the stationary person has?
A: Lower pitch and shorter wavelength
B: Lower pitch and longer wavelength
C: Higher pitch and shorter wavelength
D: Higher pitch and longer wavelength
2. The absolute index of refraction for a substance is 2.0 for light having a wavelength of 5.9 x 10-7 meter.In this substance what is the critical angle for light incident on a boundary with air?
A: 25 Degrees
B: 30 Degrees
C: 35 Degrees
D: 40 Degrees
3. Which phenomenon can occur with light, but not with sound?
A: Doppler effect
B: Interference
C: Polarization
D: Refraction
4. When 8.0 electronvolt photons strike a photo emissive surface, the maximum kinetic energy of ejected photoelectrons is 6.0 electronvolts. The work function of the photo emissive surface is
A: .01 eV
B: 1.0eV
C: 2.0eV
D: 2.5 eV
5. The threshold frequency of a photo emissive surface is 7.0 x 1014 hertz.Which electromagnetic radiation, incident upon the surface, will produce the greatest amount of current?
A: Low intensity infrared radiation
B: High intensity infrared radiation
C: Low intensity UV radiation
D: High intensity UV radiation
6. A hydrogen atom could have an electron energy level transition from n=2 to n=3 by absorbing a photon having an energy of?
A: 1.89 eV
B: 2.04 eV
C: 2.25 eV
D: 2.87 eV
7. A bicyclist accelerates from rest to a speed of 5.0 meters per second in 10 seconds. During the same 10 seconds, a car accelerates from a speed of 22 meters per second to a speed of 27 meters per second.Compared to the acceleration of the bicycle the acceleration of the car is?
A: The same
B: Greater
C: Less
8. A baseball player throws a baseball at a speed of 40 meters per second at an angle of 30 degrees. The horizontal component of the baseball’s speed is?
A: 20 m/s
B: 25 m/s
C: 30 m/s
D: 35 m/s
9. What is the boiling point of water at standard pressure on the Kelvin Scale?
A: 272 K
B: 273 K
C: 372 K
D: 373 K
10. Two solid metal blocks are placed in an insulated container. If there is a net flow of heat between the blocks, they must have different?
A: Initial temperatures
B: Specific Heat values
C: Melting points
D: Heats of fusion
11. Which statement is consistent with the kinetic theory of ideal gases?
A: Molecules transfer energy through collisions.
B: Molecules are always stationary.
C: The force of attraction between molecules is constant.
D: The size of the molecules is large compared to the distance that separates them.
12. When Adam drinks cold water, his body warms the water until thermal equilibrium is reached.If he drinks six glasses (2.5 kilograms) of water at 0 degrees Celsius in a day, approximately how much energy must his body expend to raise the temperature of this water to his body’s temperature of 37 degrees Celsius?
A: 210 kJ
B: 305 kJ
C: 390 kJ
D: 414 kJ
13. Which phase change represents a decrease in entropy?
A: Solid to gas
B: Solid to liquid
C: Gas to liquid
D: Liquid to gas
14. A high resistance is connected in series with the internal coil of a galvanometer to make?
A: An ammeter
B: A motor
C: A generator
D: A voltmeter
15. In a transformer, two coils are wound around a common iron core. To operate properly the transformer requires
A: More turns in the secondary coil than in the primary coil
B: More turns in the primary coil than in the secondary coil
C: A direct current source connecting to the secondary coil
D: An alternating current source connecting to the primary coil
16. Which device can be used to increase voltage from a source of direct current?
A: Generator
B: Electroscope
C: Induction coil
D: Mass spectrometer
17. The transformer on a power pole steps down the voltage from 10,800 volts to 120 volts.If the secondary coil contains 360 turns, how many turns are found on the primary coil?
A: 603
B: 900
C: 15,000
D: 32,400
18. An electron is located between a pair of oppositely charged parallel plates.As the electron approaches the positively charged plate, the kinetic energy of the electron?
A: Increases
B: Decreases
C: Remains the same
19. A spherical mirror that forms only virtual images has a radius of curvature of .5 meters.The focal length of this mirror is?
A: -.125 m
B: -.25 m
C: 2.5 m
D: 2.75 m
20. A spherical concave mirror is used in the back of a car headlight.Where must the bulb of the headlight be located to produce a parallel beam of reflected light?
A: Between the principal focus and the mirror
B: Beyond the center of curvature of the mirror
C: At the principal focus of the mirror
D: At the center of the curvature of the mirror
21. An object .080 meter high is placed .20 meter from a converging (convex) lens. If the distance from the image of the lens is .40 meter, the height of the image is?
A: .08 m
B: .16 m
C: .24 m
D: .33 m
22. A diverging (concave) lens can form images that are?
A: Virtual, only
B: Inverted, only
C: Either virtual or real
D: Either inverted or erect
23. A (P type) semiconductor is formed by adding impurities, which provide extra ____.
A: Electrons
B: Neutrons
C: Photons
D: Holes
24. A student measures a current of .05 ampere through a P type semiconductor.If the battery connections are reversed, the current through the semiconductor will be?
A: Less than .05 ampere
B: Greater than .05 ampere
C: The same
25. What is the approximate bind energy of a helium nucleus that has a mass defect of 5.2 x 10
-29 kilogram?
A: 4.6 x 10
-20
B: 4.6 x 10
-21
C: 4.7 x 10
-12
D: 4.7 x 10
-18
Answer Key
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