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Basic Physics - Test 3


1. When white light passes through a prism, green light is bent more than:

    A. blue light.
    B. violet light.
    C. red light.
    D. yellow light.


2. When an increase in speed doubles the momentum of a moving body, its kinetic energy:

    A. increases, but less than doubles.
    B. doubles.
    C. more than doubles.
    D. depends on factors not stated.


3. A karate chop delivers a force of 3000 N to a board that breaks. The force the board exerts on the hand is:

    A. less than 3000 N.
    B. 3000 N.
    C. greater than 3000 N.
    D. need more information.


4. Light reflecting from a smooth surface undergoes a change in:

    A. frequency.
    B. speed.
    C. wavelength.
    D. direction.


5. The phenomenon of beats results from sound:

    A. reflection.
    B. refraction.
    C. interference.
    D. decomposition.


6. Which of these changes when light refracts in passing from one medium to another?

    A. speed.
    B. wavelength.
    C. both of these.
    D. neither of these.


7. Rectifiers are used to convert:

    A. direct current to Alternating current.
    B. alternating current to Direct current.
    C. high voltage to low voltage.
    D. low voltage to high voltage.


8. Relativistic equations for time dilation, length contraction, and relativistic momentum hold true at:

    A. speeds near that of light.
    B. everyday low speeds.
    C. all speeds.
    D. only approximately.


9. Because there is an upper limit on the speed of particles, there is also an upper limit on:

    A. momentum.
    B. kinetic energy.
    C. temperature.
    D. none of these.


10. When a fusion reaction converts a pair of hydrogen isotopes, most of the energy released is in the form of:

    A. gamma radiation.
    B. kinetic energy of the alpha particle.
    C. kinetic energy of the neutron.
    D. all are equal.






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