Conservation of Energy

Front

The Law of Conservation of Energy states that energy is never __________________ or _________________, only transferred.

Back

created, destroyed

Front

Where is maximum potential energy on a roller coaster?

Back

At the top of a big hill

Front

When a pendulum swings, at which point is potential energy greatest?

Back

1 and 5

Front

What are the units of energy?

Back

Joule

Front

A pitcher throws a 0.145 kg baseball at a velocity of 30.0m/s. How much kinetic energy does the ball have?

Back

65.25 J

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or configuration.

Front

What is the formula for kinetic energy?

Back

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

Front

What is the formula for potential energy?

Back

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

Front

What happens to energy in a closed system?

Back

The total energy remains constant; it can change forms but cannot be created or destroyed.