1)  Which of the following situations is not possible?

    a) A body has zero velocity and non-zero acceleration.
    b) A body travels with a northward velocity and a northward acceleration.
    c) A body travels with a northward velocity and a southward acceleration.
    d) A body travels with a constant velocity and a time-varying acceleration.
    e) A body travels with a constant acceleration and a time-varying velocity.


2)  Consider the following forces:  (1) frictional, (2) gravitational, 
    (3) tension, (4) strong nuclear, (5) normal, (6) electroweak.
    Which of the forces listed are considered fundamental forces?

    a) 1, 2, and 4
    b) 1, 2, 3, and 5
    c) 1, 3, and 4
    d) 2, 4, and 6
    e) 2, 3, 4, and 6


3)  Which statement best explains why the weight of an object of mass M 
    is different on Mars than it is on the earth?

    a) The mass of Mars is different from that of earth.
    b) The masses and radii of Mars and earth are not the same.
    c) The mass M is further from the earth's center when it is on Mars.
    d) The constant gravitational constant G is different on Mars.
    e) The mass M will be different on Mars.


4) In which one of the following situations is zero net work done?

    a) A ball rolls down an inclined plane.
    b) A physics student stretches a spring.
    c) A projectile falls toward the surface of earth.
    d) A box if pulled across a rough floor at constant velocity.
    e) A child pulls a wagon across a rough surface causing it to 
       accelerate.


5) An electron traveling due north enters a region that contains a 
   uniform magnetic field that points due east.  In which direction 
   will the electron be deflected?

    a) east
    b) west
    c) vertically up
    d) vertically down
    e) south


6) The bending of light as it moves from one medium to another with 
   differing indices of refraction is due to a change in what property 
   of the light?

    a) amplitude
    b) period
    c) frequency
    d) speed
    e) color