TME + Conservation of Energy Review

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, calculated as PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How do you calculate gravitational potential energy?

Back

Gravitational potential energy (PE) is calculated using the formula: PE = mgh, where m = mass (kg), g = acceleration due to gravity (9.81 m/s²), and h = height (m).

Front

What is kinetic energy?

Back

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

Front

How do you calculate kinetic energy?

Back

Kinetic energy (KE) is calculated using the formula: KE = 1/2 mv², where m = mass (kg) and v = velocity (m/s).

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

At what point does a pendulum have maximum potential energy?

Back

A pendulum has maximum potential energy at its highest point (the peak of its swing).

Front

At what point does a pendulum have maximum kinetic energy?

Back

A pendulum has maximum kinetic energy at its lowest point (the bottom of its swing).

Front

What happens to energy in a roller coaster at the highest point?

Back

At the highest point of a roller coaster, the potential energy is at its maximum and kinetic energy is at its minimum.

Front

What happens to energy in a roller coaster at the lowest point?

Back

At the lowest point of a roller coaster, the kinetic energy is at its maximum and potential energy is at its minimum.

Front

If a person jumps to a height of 2.5 m, what is their gravitational potential energy?

Back

Using PE = mgh, for a mass of 60 kg, PE = 60 kg * 9.81 m/s² * 2.5 m = 1,470 J.