Potential and Kinetic Energy

Front

What is Potential Energy?

Back

Potential Energy is the energy stored in an object due to its position or height. It is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What is Kinetic Energy?

Back

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

Front

How do you calculate Potential Energy?

Back

Potential Energy (PE) is calculated using the formula PE = mgh, where m is mass (in kg), g is the acceleration due to gravity (approximately 9.81 m/s²), and h is height (in meters).

Front

How do you calculate Kinetic Energy?

Back

Kinetic Energy (KE) is calculated using the formula KE = 1/2 mv², where m is mass (in kg) and v is velocity (in m/s).

Front

What type of energy does a stationary object at a height possess?

Back

A stationary object at a height possesses Potential Energy.

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What type of energy does a moving object possess?

Back

A moving object possesses Kinetic Energy.

Front

If a baby carriage weighs 12N and is at a height of 21m, what is its Potential Energy?

Back

The Potential Energy is 252 J, calculated using PE = mgh (12N * 21m).

Front

What happens to Potential Energy as an object falls?

Back

As an object falls, its Potential Energy decreases while its Kinetic Energy increases.

Front

What is the relationship between Potential Energy and height?

Back

Potential Energy increases with an increase in height, as it is directly proportional to height in the formula PE = mgh.

Front

What is the relationship between Kinetic Energy and speed?

Back

Kinetic Energy increases with the square of the speed, as shown in the formula KE = 1/2 mv².