Speed, Kinetic Energy & Potential Energy

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration, often related to its height above the ground.

Front

When does an object have the most potential energy?

Back

An object has the most potential energy when it is at its highest point.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated based on its mass and velocity.

Front

What is the formula for calculating kinetic energy?

Back

KE = 1/2 * m * v^2, where m is mass and v is velocity.

Front

What is the formula for calculating speed?

Back

Speed is calculated using the formula: speed = distance/time.

Front

How does mass affect kinetic energy?

Back

Kinetic energy is directly proportional to mass; as mass increases, kinetic energy increases if velocity remains constant.

Front

How does velocity affect kinetic energy?

Back

Kinetic energy is proportional to the square of velocity; if velocity doubles, kinetic energy increases by a factor of four.

Front

If an object has a mass of 2 kg and a velocity of 5 m/s, what is its kinetic energy?

Back

The kinetic energy is 25 J, calculated using KE = 1/2 * 2 kg * (5 m/s)^2.

Front

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

Back

As a rollercoaster descends, potential energy is converted into kinetic energy, increasing its speed.

Front

Give an example of an object with kinetic energy.

Back

A cat running is an example of an object with kinetic energy.