MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers
the question.
1) A kilogram is a measure of an object's 1) _______
A) gravity.
B) mass.
C) force.
D) weight.
E) center of mass.
2)
Compared with the mass of a certain object on Earth, the mass of the same object on the Moon is
2) _______
A) more. B) the same. C) less.
3) Which has zero acceleration? An object 3) _______
A) moving at constant velocity.
B) at rest.
C) in mechanical equilibrium.
D) all of these
E) none of these
4) Hang from a pair of gym rings and the upward support forces of the rings will always 4)
_______
A) add up to equal your weight.
B) each be half your weight.
C) each be equal to your weight.
5) The two measurements necessary for calculating average speed are 5) _______
A) distance and acceleration.
B) acceleration and time.
C) distance and time.
D) velocity and time.
E) velocity and distance.
6)
If a freely falling object were somehow equipped with an odometer to measure the distance it tra
vels, then the amount of distance it travels each succeeding second would be 6) _______
A) less and less.
B) greater than the second before.
C) constant.
7) An object maintains its state of motion because it has 7) _______
A) weight.
B) mass.
C) acceleration.
D) speed.
E) all of these
8) A force is a vector quantity because it has both 8) _______
A) mass and acceleration.
B) magnitude and direction.
C) action and reaction counterparts.
