Gd8_weeks11,12_ Describing Motion review

1. What is a reference point?
a. A type of force
b. A stationary object used for comparison
c. A moving object
d. A measurement of speed
2. How can you tell if something is in motion?
a. It is moving relative to a reference point
b. It is always moving fast
c. It is not touching anything
d. It is moving up
3. What force pulls objects down towards the Earth?
a. Magnetic force
b. Gravitational force
c. Frictional force
d. Normal force
4. What is the normal force?
a. A force that acts downward
b. A support force that acts perpendicular to the surface
c. A force that is always in motion
d. A force that pulls objects together
5. What type of force is friction?
a. Non-contact force
b. Contact force
c. Gravitational force
d. Acceleration
6. What is the net force?
a. The force acting on an object that is stationary
b. The total force after all forces are combined
c. The force of gravity only
d. The force that always points upward
7. If an object experiences equal forces in opposite directions, what is the net force?
a. It is moving up
b. It is moving down
c. It is zero
d. It is increasing
8. What represents forces in diagrams?
a. Squares
b. Circles
c. Arrows
d. Dots
9. Which of the following is a non-contact force?
a. Friction
b. Tension
c. Gravity
d. Push
10. What happens to an object's motion if the net force is not zero?
a. It will not move
b. It will move in the direction of the net force
c. It will stay at rest
d. It will move randomly
Answer Key:
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