Week 8 TEST - PE, KE, Energy Transformations

Front

What is the primary energy transformation that occurs in a clothes dryer?

Back

Electrical energy is converted to heat and mechanical energy.

Front

What type of energy is associated with the motion of a ball rolling down a hill?

Back

Kinetic energy.

Front

At which point does a bicycle rider have the greatest potential energy while going up a hill?

Back

At the top of the hill.

Front

What happens to a rider's potential and kinetic energy as they go down a hill?

Back

Potential energy decreases while kinetic energy increases.

Front

Where does a dropped rubber ball have the greatest potential energy?

Back

At Position 1, before it is dropped.

Front

How does the potential energy of a ball at position X compare to position Z in a roller coaster design?

Back

The ball has more potential energy at position X than at position Z.

Front

What is kinetic energy?

Back

The energy of an object due to its motion.

Front

What is potential energy?

Back

The stored energy of an object due to its position or state.

Front

What is the relationship between potential energy and height?

Back

Potential energy increases as height increases.

Front

What is the formula for calculating kinetic energy?

Back

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