Review PS.5.2.1

Front

What is force?

Back

A push or pull on an object that can cause it to move, stop, or change direction.

Front

What is inertia?

Back

The tendency of an object to stay in motion or at rest until a force acts upon it.

Front

What are unbalanced forces?

Back

Forces that cause a change in the motion of an object.

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

How can you make a toy car roll faster down a ramp?

Back

By pushing it with more force.

Front

What happens when you increase the force applied to an object?

Back

The object's motion changes, either speeding up or changing direction.

Front

What is gravity?

Back

A force that pulls objects toward each other, such as the Earth pulling objects toward its center.

Front

What is the effect of friction on motion?

Back

Friction opposes motion, making it harder for objects to move.

Front

What is the relationship between force and motion?

Back

Force is needed to change the motion of an object.

Front

What is an example of changing an object's direction?

Back

Steering a bicycle to turn left or right.