Science: Matter and Energy Flashcard

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically related to its height above the ground.

Front

What is the formula to calculate gravitational potential energy?

Back

The formula is PE = mgh, where PE is potential energy, m is mass (in kg), g is the acceleration due to gravity (9.81 m/s²), and h is height (in meters).

Front

What happens to gravitational potential energy as an object falls?

Back

As an object falls, its gravitational potential energy decreases while its kinetic energy increases.

Front

What is kinetic energy?

Back

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

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 is the difference between kinetic energy and potential energy?

Back

Kinetic energy is energy of motion, while potential energy is stored energy based on an object's position.

Front

What is the gravitational force?

Back

Gravitational force is the attractive force between two masses, which pulls them toward each other.

Front

What is the strong nuclear force?

Back

The strong nuclear force is the fundamental force that holds protons and neutrons together in the nucleus of an atom.

Front

What is the electromagnetic force?

Back

The electromagnetic force is the force that acts between charged particles, responsible for electricity and magnetism.

Front

What is the weak nuclear force?

Back

The weak nuclear force is responsible for the process of beta decay in atomic nuclei and plays a role in nuclear reactions.