Calculating kinetic and potential energy

Front

What is kinetic energy?

Back

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

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, an object at a height has gravitational potential energy.

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 * mass (m) * velocity (v)^2.

Front

What is the formula for calculating gravitational potential energy?

Back

The formula for gravitational potential energy (PE) is PE = mass (m) * gravity (g) * height (h).

Front

What is the value for g (gravity) on Earth?

Back

The value for g (gravity) on Earth is approximately 9.8 m/s².

Front

If a ball has a mass of 3 kg and is kicked with a speed of 10 m/s, what is its kinetic energy?

Back

The kinetic energy is 150J.

Front

How do you calculate the gravitational potential energy of an object?

Back

To calculate gravitational potential energy, multiply the mass of the object by the gravitational acceleration (9.8 m/s²) and the height above the ground.

Front

What is the kinetic energy of a 625 kg roller coaster moving at 18.3 m/s?

Back

The kinetic energy is 104,653.125J.

Front

What type of energy is stored energy?

Back

Stored energy is known as potential energy.

Front

How much gravitational potential energy does an 800 N panda have at a height of 2 m?

Back

The gravitational potential energy is 1600J.