Everything Science Grade 10

11.5 CHAPTER 11. ELECTROMAGNETIC RADIATION

6. List the main types of electromagnetic radiation in order of increasing

wavelength.

7. List the main uses of:

a. radio waves

b. infrared

c. gamma rays

d. X-rays

8. Explain why we need to protect ourselves from ultraviolet radiation from

the Sun.

9. List some advantages and disadvantages of using X-rays.

10. What precautions should we take when using cell phones?

11. Write a short essay on a type of electromagnetic waves. You should look

at uses, advantages and disadvantages of your chosen radiation.

12. Explain why some types of electromagnetic radiation are more penetrat-

ing than others.

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(7.) 0051 (8.) 0052 (9.) 0053 (10.) 0054 (11.) 0055 (12.) 0056

202 Physics: Waves, Sound and Light