Extra Credit (Q2)

Front

What type of energy does a ball have at the top of a hill?

Back

Gravitational potential energy is the energy stored due to an object's position above the ground.

Front

What energy transformation occurs when a toaster is used?

Back

Electrical energy is transformed into thermal energy.

Front

How is gravitational potential energy best described?

Back

It is the energy due to an object's position above the ground.

Front

What is the formula to calculate average speed?

Back

Front

If a train travels 200 km in 4 hours, what is its average speed?

Back

The average speed is 50 km/h.

Front

Define kinetic energy.

Back

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

Front

What is the formula for kinetic energy?

Back

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy based on position, while kinetic energy is energy of motion.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential and kinetic energy in a system.

Front

What is the unit of energy?

Back

The unit of energy is the Joule (J).