8th Grade 2nd Semester Test

What is your name?

1. A car accelerating around a mountain curve.

• a. Unbalanced
• b. Balanced
• c. Both ____

2. Two ice skaters moving in a straight line at a constant speed.

• a. Unbalanced
• b. Balanced
• c. Both ____

3. An asteroid shooting through space.

• a. Unbalanced
• b. Balanced
• c. Both ____

4. The moon orbiting the Earth.

• a. Unbalanced
• b. Balanced
• c. Both ____

5. What happens to an object as an unbalanced force acts on it?

• a. The speed remains the same.
• b. The force becomes balanced.
• c. The speed of the object changes.
• d. It depends on the acceleration of the object. ____

6. What happens to the position of an object as an unbalanced force acts on it?

• a. The position of the object does not change.
• b. The position of the object changes. ____

7. What happens to the direction of an object as an unbalanced force acts on it?

• a. It moves in the direction of the force
• b. An object at rest will never move
• c. It moves in the opposite direction of the net force
• d. An object at rest will not change direction ever

8. A push or pull on an object is called a _______________.

• a. Newton
• b. kilowatt
• c. force
• d. Joule____

9. The ___________ is the remaining or leftover amount of forces acting on an object.

• a. Leftover force
• b. Subtractant force
• c. Additive force
• d. Net force