B. motion
1. A change in position relative to a frame of reference is called B4
A. acceleration
2. The Earth's movement on its axis is a
C. speed
D. velocity
motion
A. circular
B. rolling
C. periodic
D. rectilinear
3. A reference point is also called a
A frame of reference
B. position
C. distance
D. force
4. An object moves if there is that is exerted on it.
A. force
B. position
C. frame of reference
D distance
5. In the phrase "three blocks from the hospital”, what is the hospital?
A. a position
B. a destination
Ca dimension
D. a reference point
6. A ship is sailing from the port. Compared to which reference point is the ship in motion?
A. the sea
B. the port
C. the captain of the ship
D. the cargo the ship carries
7. A change in position is called
A. Motion
B. Frame of reference
C. Distance
D. Time
8. The moon moves around the earth. What kind of motion does the moon demonstrate?
A. rectilinear
B. rolling
C. circular
D. periodic
9. The swing moves back and forth, up and down. What kind of motion has the swing?
A. periodic B. rectilinear
C. rolling
D. circular
10. A force is described as
A. a push only
B. a pull only
C. a push or a pull
D. none of the above
11. Making a playground slide smoother
A. decreases friction
B. decreases motion
C. decreases speed
D. decreases weight​