Energy 5.1

Front

What is energy?

Back

Energy is the ability to do work or to cause change.

Front

What is work in terms of energy?

Back

Work is done when a force causes an object to move.

Front

Can energy be transformed? Give an example.

Back

Yes, energy can be transformed. For example, in a toaster, electrical energy is transformed into thermal energy to toast bread.

Front

What happens when Taryn pushes against a brick wall and it does not move?

Back

Taryn did not do work because the wall did not move.

Front

What is the correct order of energy transformation in a microwave?

Back

Electrical energy is transformed into thermal energy and sound.

Front

What is the energy transformation in a toaster?

Back

Electrical to thermal to light to mechanical to sound.

Front

What is the role of wheels in a skateboard's speed?

Back

More wheels can affect the speed, and testing different numbers of wheels can help determine the fastest option.

Front

What is the difference between potential energy and kinetic energy?

Back

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

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential and kinetic energy in an object.