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 does height affect Potential Energy?

Back

The higher an object is, the more potential energy it has. This is because potential energy depends on the height of the object above the ground.

Front

What factors affect Kinetic Energy?

Back

Kinetic Energy depends on the mass of the object and its velocity. A heavier object or a faster-moving object will have more kinetic energy.

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What is the formula for Gravitational Potential Energy?

Back

The formula for Gravitational Potential Energy is PE = mgh, where m is mass, g is the acceleration due to gravity (approximately 9.8 m/s²), and h is height.

Front

Where is potential energy maximum on a roller coaster?

Back

Potential energy is maximum at the top of a big hill on a roller coaster.

Front

If two objects have the same mass, how does their speed affect their Kinetic Energy?

Back

If two objects have the same mass, the one with the higher speed will have greater kinetic energy, since KE = 1/2 mv².

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 energy is lost to air resistance.

Front

What is the relationship between Potential Energy and Kinetic Energy?

Back

Potential Energy can be converted into Kinetic Energy and vice versa. For example, when an object falls, its potential energy is converted into kinetic energy.

Front

What is the unit of energy?

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The unit of energy is the Joule (J).