Work / Energy

Front

What is the total amount of energy a moving object has?

Back

The total energy is expressed as KE + PE (Kinetic Energy + Potential Energy).

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion.

Front

What does the Law of Conservation of Energy state?

Back

The total amount of energy in a closed system will always stay the same.

Front

What type of energy transformation occurs when a flashlight shines?

Back

The transformation is chemical → electrical → light.

Front

What must happen for work to be done when a force is exerted on an object?

Back

The object must move.

Front

Define work in the context of physics.

Back

Work is done when a force causes an object to move in the direction of the force.

Front

What is potential energy?

Back

Potential energy is stored energy based on an object's position or state.

Front

What is the formula for kinetic energy?

Back

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

Front

What is the unit of energy in the International System of Units (SI)?

Back

The unit of energy is the Joule (J).

Front

What is mechanical energy?

Back

Mechanical energy is the sum of kinetic and potential energy in an object.