Science 6 - Unit 5 Review

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. For example, a ball held at a height has potential energy because of its position above the ground.

Front

When does an object have the greatest potential energy?

Back

An object has the greatest potential energy when it is at its highest point and has stopped moving.

Front

What is force?

Back

Force is a push or pull on an object that can cause it to change its motion. It is measured in Newtons (N).

Front

What happens when two forces act in the same direction?

Back

When two forces act in the same direction, you add the forces together to find the total force.

Front

Where is kinetic energy the highest on a swing?

Back

Kinetic energy is highest at the lowest point of the swing, which is Point Y.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the potential energy an object has due to its height above the ground, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the relationship between mass and force?

Back

According to Newton's second law, force is equal to mass times acceleration (F = ma). This means that greater mass requires more force to accelerate.