A farmer needed to keep his baby chicks warm. He placed a light in their cage. Which sentence best explains the farmer's thinking of placing a light in the cage.

• The farmer thought the light would transfer thermal energy to the chick's cage

• The farmer thought that the chick's would be healthier if they were not in the dark

• The farmer thought that the chick's would eat more to stay warm if they can see their food

• The farmer thought the light would encourage the chick's to huddle together to keep themselves warm

What is the movement of energy from warmer to cooler objects?

• temperature

• heat

• light

• sound

What type of heat transfer is shown in the picture?

• conduction

• convection

• radiation

What type of heat transfer is shown in the picture?

• conduction

• convection

• radiation

What type of heat transfer is shown in the picture?

• conduction

• convection

• radiation

Which bulb produces more light with less electricity?

• 
• 

Which bulb wastes more energy as heat?

• 
• 

Which bulb produces more light?

• Incandescent

• LED

How much light is produced by Incandescent light bulbs

• 98%

• 2%

• 91%

• 9%

Where does heat move

• warmer objects to warmer objects

• warmer objects to cooler objects

• cooler objects to warmer objects

• It does not move