Force and motion

Front

What are balanced forces?

Back

When two equal forces act in opposite directions, resulting in no change in motion.

Front

What is friction?

Back

A force that slows down or stops motion when two surfaces rub against each other.

Front

What are unbalanced forces?

Back

When one force is stronger than another, causing motion to occur.

Front

What is motion?

Back

The act of moving or changing position.

Front

What is a non-contact force?

Back

A force that can cause objects to move without touching them.

Front

What is gravity?

Back

A force that pulls objects toward each other, like the Earth pulling us down.

Front

What is inertia?

Back

The tendency of an object to stay at rest or keep moving unless acted upon by a force.

Front

What is a contact force?

Back

A force that requires physical contact between two objects to cause movement.

Front

Can you give an example of balanced forces?

Back

A book resting on a table is an example of balanced forces.

Front

Can you give an example of friction?

Back

Rubbing your hands together creates friction, which generates heat.