Potential and Kinetic Energy

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It has the potential to do work when released.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It depends on the mass of the object and the speed at which it is moving.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy stored in an object as a result of its height above the ground. It is calculated using the formula: PE = mgh (mass x gravity x height).

Front

How does height affect potential energy?

Back

The higher an object is, the more gravitational potential energy it has, because potential energy increases with height.

Front

What happens to kinetic energy as an object's speed increases?

Back

As an object's speed increases, its kinetic energy increases. Kinetic energy is calculated using the formula: KE = 1/2 mv² (1/2 x mass x velocity squared).

Front

At which point in a swing does a child have maximum potential energy?

Back

A child on a swing has maximum potential energy at the highest points (X and Z) of the swing.

Front

At which point in a swing does a child have maximum kinetic energy?

Back

A child on a swing has maximum kinetic energy at the lowest point (Y) of the swing.

Front

What is the relationship between potential energy and kinetic energy in a swinging motion?

Back

In a swinging motion, potential energy is converted to kinetic energy and vice versa. At the highest points, potential energy is maximum and kinetic energy is minimum, and at the lowest point, kinetic energy is maximum and potential energy is minimum.

Front

What is the formula for calculating kinetic energy?

Back

The formula for calculating kinetic energy is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for calculating gravitational potential energy?

Back

The formula for calculating gravitational potential energy is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.