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 is often associated with gravitational potential energy, calculated using PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

How can you gain Potential Energy?

Back

You can gain potential energy by moving to a higher position, such as climbing a mountain or walking up stairs.

Front

What happens to Potential Energy as Kinetic Energy decreases?

Back

As kinetic energy decreases, potential energy must increase, assuming the total mechanical energy remains constant.

Front

Which point on a hill has the most Potential Energy?

Back

The highest point on the hill has the most potential energy.

Front

What type of relationship exists between Kinetic and Potential Energy in a closed system?

Back

There is an inverse relationship; as one increases, the other decreases.

Front

What is the formula for calculating Kinetic Energy?

Back

KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for calculating Potential Energy?

Back

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

Front

If a bird has a mass of 0.40 kg and is flying at 8.0 m/s, what is its Kinetic Energy?

Back

12.8 J (calculated using KE = 1/2 mv²).

Front

What is the unit of energy in the International System of Units (SI)?

Back

The unit of energy is the Joule (J).