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Heat Sources - Heat and Light From Machines

Some mechanical and electrical machines not only produce heat, but they also produce light. What are some machines that produce light?

Look at the pictures below. They are all machines that produce heat, but some of them also produce light. Click on the correct button for each picture!

Produces Light
Does NOT Produce Light
1. Toaster
Produces Light
Does NOT Produce Light
2. Flashlight
Produces Light
Does NOT Produce Light
3. Remote Control Car
Produces Light
Does NOT Produce Light
4. Pencil Sharpener
Produces Light
Does NOT Produce Light
5. Aquarium
Produces Light
Does NOT Produce Light
6. Lightbulb
Produces Light
Does NOT Produce Light
7. Scooter

Check your answers! Highlight the box below and see how many you got right.

  1. Produces Light
  2. Produces Light
  3. Does NOT Produce Light
  4. Does NOT Produce Light
  5. Produces Light
  6. Produces Light
  7. Does NOT Produce Light

Close your eyes and try to think of at least five light producers in your home or classroom. Now open your eyes and look around. How many more can you see? Can you add at least five more to your list? Compare your list with the items below.

In your school:
  • Overhead projector
  • Television
  • Computer
  • Aquarium
  • Exit sign
  • Lights
  • Phone
  • Calculator
  • Sunlight
  • Flashlight
At home:
  • Refrigerator
  • Stove
  • Toaster
  • Dishwasher
  • Microwave
  • Television
  • Digital clock
  • Sunlight
  • Computer
  • Flashlight
  • Car lights
  • CD player
utah state board of education This Sci-ber Text was developed by the Utah State Board of Education and Utah educators.
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