Motion Quiz 1-2

Forces that cause a change in motion are

• balanced forces

• unbalanced forces

• gravity

• force

A force of attraction between two objects, even if they are not touching, is

• balanced forces

• unbalanced forces

• friction

• gravity

A push or a pull, which causes movement or change in an object's movement or shape, is a(n)

• balanced forces

• friction

• gravity

• force

Forces on an object that are equal in size and opposite in direction are

• balanced forces

• unbalanced forces

• friction

• gravity

A force that opposes motion and acts between two objects that are touching is

• balanced forces

• unbalanced forces

• friction

• gravity

Which of the following objects will have the greatest change in motion?

• A. A small force is applied to an object with a large mass.

• B. A small force is applied to an object with a small mass.

• C. A large force is applied to an object with a large mass.

• D. A large force is applied to an object with a small mass.

Asher throws a ball into the air and watches it go up for a long time. Then it starts to fall back toward him. What force causes the ball to return to the ground?

• friction

• gravity

• motion

• wind

Arrows represent the forces applied to an object. A longer arrow means a greater force. Which object will move upward?

• image A

• image B

• image C

• image D

When an unbalanced force is applied to an object, the object moves in the direction of the force. Which graph shows how the same force will affect the motion of objects that have different masses?

• Image A

• Image B

• Image C

• Image D

Look at the following illustration. Two boys are about to use the same force to push a parent and a child. Which describes what will happen?

• The parent will swing higher.

• The parent will accelerate faster.

• The child will accelerate faster.

• The parent and the child will accelerate at the same rate.