Forms of Energy & KE/GPE/Work Practice

Front

What is gravitational potential energy (GPE)?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, calculated as GPE = mass × gravity × height.

Front

How do you calculate kinetic energy (KE)?

Back

Kinetic energy is calculated using the formula KE = 0.5 × mass × velocity².

Front

What is the formula for work done?

Back

Work done is calculated as Work = Force × Distance × cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is the unit of energy?

Back

The unit of energy is the Joule (J).

Front

What is the relationship between kinetic energy and speed?

Back

Kinetic energy increases with the square of the speed; if speed doubles, kinetic energy increases by a factor of four.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, resulting from the movement of particles.

Front

What happens to energy when a skateboarder skates up a ramp?

Back

The kinetic energy of the skateboarder is transformed into gravitational potential energy as they gain height.

Front

What is the gravitational acceleration on Earth?

Back

The gravitational acceleration on Earth is approximately 9.8 m/s².

Front

How do you find the gravitational potential energy gained by an object?

Back

GPE can be found using the formula GPE = mass × gravity × height.

Front

What is the difference between kinetic energy and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on position.