PE/KE Math Practice

Front

What is Kinetic Energy (KE)?

Back

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

Front

What is Potential Energy (PE)?

Back

Potential Energy is the stored energy of an object due to its position or state, commonly calculated as PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How do you calculate Kinetic Energy?

Back

Kinetic Energy (KE) is calculated using the formula KE = 1/2 mv², where m is the mass of the object and v is its velocity.

Front

How do you calculate Gravitational Potential Energy (GPE)?

Back

Gravitational Potential Energy (GPE) is calculated using the formula GPE = mgh, where m is mass, g is the acceleration due to gravity, and h is height above the ground.

Front

What is the unit of energy in the International System of Units (SI)?

Back

The unit of energy in the SI system is the Joule (J).

Front

If a rock has a kinetic energy of 2000J and a velocity of 20m/s, what is its mass?

Back

The mass of the rock is 10 kg.

Front

What is the gravitational acceleration on Earth?

Back

The gravitational acceleration on Earth is approximately 9.81 m/s².

Front

How much potential energy does a 90.7 kg person have at a height of 1,575 m?

Back

The potential energy is 1,399,954.5 J.

Front

What is the gravitational acceleration on the Moon?

Back

The gravitational acceleration on the Moon is approximately 1.622 m/s².

Front

If a 0.3 kg tennis ball is held at a height of 2.0 m, what is its gravitational potential energy?

Back

The gravitational potential energy is 5.88 J.