Potential and Kinetic Energy

Front

What is energy?

Back

Energy is the ability to cause change.

Front

What happens to a child's potential and kinetic energy at points X and Y on a swing?

Back

At point X, the child has more potential energy and less kinetic energy than at point Y.

Front

What type of energy does a pulled-back rubber band represent?

Back

Potential energy.

Front

Which of the following has kinetic energy? a. a car parked on a steep hill, b. a tennis ball rolling across the court, c. a picture hanging on the wall, d. a piece of coal before it's burned

Back

b. a tennis ball rolling across the court.

Front

How does the speed of an object affect its kinetic energy?

Back

The faster an object moves, the more kinetic energy it has.

Front

Define kinetic energy.

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

Define potential energy.

Back

Potential energy is the stored energy of an object due to its position or state.

Front

What is the formula for kinetic energy?

Back

Kinetic energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for gravitational potential energy?

Back

Gravitational potential energy (PE) = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases.