Energy (PE/KE & Conversions)

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It has the potential to be converted into kinetic energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion. It depends on the mass of the object and the square of its velocity.

Front

At which point in a pendulum's swing is potential energy at its greatest?

Back

At the highest points of the swing, where the pendulum momentarily stops before changing direction.

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 the formula for calculating potential energy?

Back

The formula for potential energy (PE) is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What happens to energy during a transformation?

Back

Energy can change from one form to another, but the total energy remains constant (Law of Conservation of Energy).

Front

What is an example of energy transformation?

Back

When a roller coaster goes down a hill, potential energy is converted into kinetic energy.

Front

What is 'wasted energy' in energy transformations?

Back

Wasted energy is energy that is not useful for doing work, often released as heat.

Front

What type of energy is associated with chemical bonds?

Back

Chemical energy is the energy stored in the bonds of chemical compounds.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.