Forces and Motion Unit Test

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces cause an object to accelerate.

Front

What is a force?

Back

A force is a push or a pull that can change the motion of an object.

Front

What is friction?

Back

Friction is the force that opposes motion between two surfaces that are in contact.

Front

How does friction affect motion?

Back

Friction slows down or stops the motion of an object.

Front

What is motion?

Back

Motion is a change in an object's position over time.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies toward each other, commonly experienced as the force that pulls objects toward the Earth.

Front

What are the two types of forces?

Back

The two types of forces are contact forces (like friction) and non-contact forces (like gravity).

Front

What happens when two forces act in the same direction?

Back

When two forces act in the same direction, they combine to create a larger force.

Front

What happens when two forces act in opposite directions?

Back

When two forces act in opposite directions, they can cancel each other out or create a net force that determines the object's motion.

Front

What is net force?

Back

Net force is the overall force acting on an object after all the forces are combined.