Science 7 Energy

What uses the most energy?

• Heating /Cooling 
• Water heating 
• Refrigeration 

What uses the most energy?

• computer
• radio
• refrigerator

An incandescent light bulb converts most of its energy into

• light
• mechanical
• thermal

One of the easiest ways to reduce electricity use at home is to:

• Replace windows
• Insulate attic
• Change an incandescent light bulb to florescent light bulb

What controls the temperature in a home?

• transformer
• thermostat
• photocell

Wasted energy is given off in what form.

• thermal
• mechanical
• chemical

Source of energy we use for transportation

• wind
• coal
• petroleum

energy of electrons

• kenetic
• radiant
• electrical
• thermal

energy of motion

• kenetic
• radiant
• electrical
• thermal

energy of electromagnetic waves

• kenetic
• radiant
• electrical
• thermal