Unit 4 Review

Front

If there were no friction, a moving object would keep moving forever. True or False?

Back

True

Front

What is a characteristic of a balanced force?

Back

Equal in size, opposite in direction.

Front

Which type of energy is found in fuels or batteries?

Back

Chemical energy.

Front

Calculate the Net Force: 5 N Right and 3 N Left. What is the Net Force?

Back

2 N Right.

Front

A baseball held by a pitcher has _____________ energy.

Back

Potential energy.

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion; unbalanced forces do.

Front

What is kinetic energy?

Back

The energy an object has due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or state.

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = m x a).