6. Name a use of radiowaves.
- communication
- x rays
- sterilizing
- washing powder
7. Which electromagnetic wave has the longest wavelength?
- Radiowaves
- Gamma rays
- ultraviolet
- Infrared
- Visible light
8. Name a use of X-rays
- hospital x-rays of broken bones
- microwave cooking
- washing powder
- sterilizing food
9. Name a use of infrared.
- lazer eye surgery
- radiant heaters
- sterilizing
- microwave cooking
10. Name a use of Visible light.
- cooking
- seeing
- lazer eye surgery
- x rays
