Calculating Kinetic and Potential Energy

Front

What is the formula for calculating kinetic energy?

Back

1/2 * mass * velocity^2

Front

If an object has a mass of 5 kg and a velocity of 10 m/s, what is its kinetic energy?

Back

250 J

Front

What is the formula for calculating potential energy?

Back

PE = mgh

Front

If an object has a mass of 10 kg and a height of 20 meters, what is its potential energy?

Back

2000 joules

Front

What are the units for measuring kinetic energy?

Back

joules (J)

Front

What are the units for measuring potential energy?

Back

joules (J)

Front

How does the kinetic energy of an object change if its velocity doubles?

Back

It quadruples

Front

How does the potential energy of an object change if its height triples?

Back

Increases

Front

What is the relationship between kinetic and potential energy?

Back

They are both forms of mechanical energy.

Front

Can an object have both kinetic and potential energy at the same time?

Back

Yes, an object can have both kinetic and potential energy at the same time. For example, a pendulum at the highest point in its swing has potential energy, and as it swings down, it gains kinetic energy while still having potential energy.