Where does energy go

Multiple Choice

What is the wasted energy?

• electrical

• chemical

• heat

Multiple Choice

To increase the EFFICIENCY of energy use, we could...

• Turn off lights when not in use

• Keep the car running as you go into the store

• Water the plants in a drought

Multiple Choice

What is the wasted energy?

• electrical

• heat

• sound

Multiple Choice

What is “useful output” energy?

• Energy that is used by the appliance

• Useful energy that is put into the system

• Energy that is produced that we cannot use

• Energy that is produced that we can use to do work

Multiple Choice

What does it mean if a system is “energy efficient”?

• It has less wasted output energy

• It has less useful output energy

• It has more input energy than output energy

• Energy is used quickly

Multiple Choice

What is “wasted output” energy?

• Energy that is used by the appliance

• Useful energy that is put into the system

• Energy that is produced that we can use to do work

• Energy that is produced that we cannot use

Multiple Choice

What is this diagram called?

• Stankey Diagram

• Sankey Diagram

• Sankay Diagram

• Samkay Diagram

Multiple Choice

The wasted energy in this diagram:

• is the bottom arrow.

• is the green arrow.

• is made of three types of energy.

• is the longest arrow.

Multiple Choice

This car needs 8600J of energy to power it. If 5000J is changed into useful energy, how much energy is wasted?

• 13600J

• 3600J

• 5000J

• 8600J