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 can be gravitational, elastic, or chemical.

Front

What is Gravitational Potential Energy (GPE)?

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 GPE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How does height affect Potential Energy?

Back

The higher an object is positioned, the greater its potential energy due to the increased gravitational force acting on it.

Front

What is the formula for calculating Kinetic Energy?

Back

The formula for calculating Kinetic Energy is KE = 1/2 mv².

Front

What factors affect Kinetic Energy?

Back

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

Front

If an object is at rest, what is its Kinetic Energy?

Back

If an object is at rest, its Kinetic Energy is 0 Joules.

Front

What is the relationship between Kinetic Energy and velocity?

Back

Kinetic Energy increases with the square of the velocity; if the velocity doubles, the Kinetic Energy increases by a factor of four.

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

Calculate the Kinetic Energy of a 2 kg object moving at 4 m/s.

Back

KE = 1/2 mv² = 1/2 * 2 kg * (4 m/s)² = 16 Joules.