Work and Energy Review-Physics

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in a system.

Front

What are the two main types of mechanical energy?

Back

The two main types of mechanical energy are kinetic energy and potential energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, such as gravitational potential energy or elastic potential energy.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses because of 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 elastic potential energy?

Back

Elastic potential energy is the energy stored in elastic materials as the result of their stretching or compressing.

Front

What is the formula for calculating elastic potential energy?

Back

The formula for elastic potential energy is PE = 1/2 kx², where k is the spring constant and x is the displacement from the equilibrium position.

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What happens to energy during a transformation?

Back

During a transformation, no energy is lost; it is converted from one form to another.

Front

What is work in physics?

Back

Work is done when a force causes an object to move, calculated as Work = Force x Distance.