8th Grade Semester 1 Final Review

Front

What is the equal but opposite reaction when you hit a wall with a stick?

Back

The wall pushing against the stick.

Front

What type of energy is stored energy?

Back

Potential energy.

Front

What is the name of the moon phase that occurs after the Full Moon?

Back

Last Quarter (or Third Quarter).

Front

What do we call forces that have a net force of zero?

Back

Balanced forces.

Front

In summer, is the axis of the earth pointed toward or away from the sun?

Back

Toward the sun.

Front

What is the definition of kinetic energy?

Back

The energy of an object in motion.

Front

What is the definition of potential energy?

Back

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

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces result in no change in motion, while unbalanced forces cause a change in motion.

Front

What happens to the motion of an object when the net force acting on it is zero?

Back

The object remains at rest or continues to move at a constant velocity.

Front

What is the formula for calculating kinetic energy?

Back

KE = 1/2 mv² (where m is mass and v is velocity).