Kinetic and Potential Energy

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy an object possesses due to its motion. The faster an object moves, the more kinetic energy it has.

Front

What is Potential Energy?

Back

Potential Energy is the stored energy in an object due to its position or state. For example, a rock at the top of a hill has potential energy.

Front

What happens to the kinetic energy of an object if its speed doubles?

Back

If the speed of an object doubles, its kinetic energy increases by four times, because kinetic energy is proportional to the square of the speed.

Front

What is the formula for calculating Kinetic Energy?

Back

The formula for Kinetic Energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for calculating Potential Energy?

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The formula for Potential Energy (PE) is PE = mgh, where m is mass, g is the 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 point, potential energy is maximum and kinetic energy is minimum, and vice versa at the lowest point.

Front

What is an example of an object with high potential energy?

Back

A book placed on a shelf has high potential energy due to its height above the ground.

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What is an example of an object with high kinetic energy?

Back

A speeding car has high kinetic energy due to its high speed.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the effect of height on Potential Energy?

Back

The higher an object is positioned, the greater its potential energy, because potential energy depends on height.