1. A change in position in a frame of reference is called A. acceleration
B. motion
C. speed
D. velocity
2. The Earth's movement on its axis is a
motion.
A. circular
B. rolling
C. periodic
D. rectilinear
3.
A reference point is also called
A. frame of reference
C. position
B. position
D. force
4. You need a frame of reference to describe your
A. motion
B. distance
C. speed
D. position
5. An object moves if there is
that exerted on it.
A. force
C. frame of reference
B. position
D. distance