Kinetic and Potential Energy

Front

What is Kinetic Energy?

Back

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

Front

What is Potential Energy?

Back

Potential Energy is the stored energy in an object due to its position or state. It is often associated with gravitational potential energy, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the relationship between Kinetic and Potential Energy in a pendulum?

Back

In a pendulum, energy continuously transforms between kinetic and potential energy. At the highest points, potential energy is maximum and kinetic energy is minimum. At the lowest point, kinetic energy is maximum and potential energy is minimum.

Front

At which point in a pendulum's swing is potential energy greatest?

Back

Potential energy is greatest at the highest points of the swing.

Front

At which point in a pendulum's swing is kinetic energy greatest?

Back

Kinetic energy is greatest at the lowest point of the swing.

Front

How do you calculate the Kinetic Energy of a moving object?

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

If a car has a mass of 2600 kg and is moving at 25 m/s, what is its Kinetic Energy?

Back

The Kinetic Energy of the car is 437,500 J, calculated using KE = 1/2 (2600 kg)(25 m/s)².

Front

What happens to Potential Energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, assuming no other forces act on it.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the potential energy held by an object because of its height above the ground, calculated as PE = mgh.

Front

What factors affect Kinetic Energy?

Back

Kinetic Energy is affected by the mass of the object and the square of its velocity.