REMEDIAL G10

The EM wave with frequency higher than infrared and lower than UV.

• radio
• visible light
• xray
• gamma

When the wavelength increases the frequency will

• increase
• decrease

Which of these lists the EM waves from Highest to lowest frequency?

• Radio -  Micro - Gamma - Visible light - UV - Xrays - Infrared - Xrays
• Radio - Micro - Infrared - Visible light - UV - X - Gamma waves
• Gamma - Xray - UV - Visible light - Infrared - Micro - radio

Which of the following colors have the highest frequency?

• yellow

• green

• blue

• violet

Which color has the least amount of energy?

• red
• orange
• green
• blue

Infrared has a higher frequency than

• x-ray
• gamma
• visible light
• radio

6. Why are babies exposed to sunlight early in the morning for 5-10 minutes? It is because...

• the sun's gamma rays help babies to develop healthy skin

• sunlight has UV rays that help babies to develop healthy skin

• UV rays from the sun help the body produce vit. D for healthier bones

• gamma rays from the sun help the body produce vit. D for healthier bones

7. How does a microwave oven cook food? It cooks food by ______________.

• heating the container carrying the food

• transferring energy to the water molecules in the food

• having waves reflected in the oven to produce standing waves

• transferring energy to the molecules on the surface of the food

8. Which factor contributes to usefulness of gamma rays in treating-cancer cells? Gamma rays have frequencies thus having ________ energy allowing it to be penetrating.

• changing

• constant

• high

• low

10. Which explains the importance of knowing electromagnetic waves? It ___________.

• helps us to listen to a radio

• makes our lives livelier and easier

• facilitates attachment to our loved ones far from us

• increases our awareness on its usefulness and effects