22. How many feet does food travel in the average adult’s digestive

tract?A. 10 feet B. 20 feet C. 30 feet

Electromagnetic Waves Notes #22

p. 520

1. ___________________ are produced by charged particles in motion, travel through space, and transfer energy.

Electromagnetic waves

2. An electromagnetic wave is composed of two force fields: ___________ field ___________ fieldmagnetic

electric

Copy and label

3. _____________ - energy carried by an electromagnetic wave

Radiant Energy

4. The higher the frequency, the _____ energy the wave has.more

5.Electromagnetic waves travel at the speed of light, ______ km/s.300,000

Section 1 Reviewp. 524

1-5 Answers only in complete sentences

Section 2 Notes

Science Book p. 525

Draw and label:

How can you remember the order???

a. radio waves e. x-rays

b. ultraviolet waves f. microwave waves

c. gamma rays g. infrared waves

d. visible light  

23. What type of animal creates this structure on oak trees?

A. gall wasps B. monarch butterfliesC. hummingbirds

Electromagnetic Spectrum Foldable(part of #22)

6. ____________ - have the lowest frequency and least energy; ex. TV signals, AM or FM radio signals

7. ____________ - slightly higher frequency than home radio waves; ex. Transmit phone calls, warm food

8. _______________ - produces heat; used for night vision, pit vipers

9. _______________ - only part of the electromagnetic spectrum that the human eye can see; white light is composed of color (ROYGBIV)

10. ____________________ - has a higher frequency than visible light and can damage cells; sunburn, Vitamin D, cleaning

11. ________ - can go through skin and muscle; check for broken bones

12. _____________ - have the highest frequency and most energy; kill cancer cells, kill bacteria in food

1. Has the highest frequency2. Has the lowest frequency3. Can travel through skin and muscle4. Used by pit vipers to find food5. Used to heat food evenly6. The only part humans can see7. Can damage cells

A. Microwave

B. Gamma rays

C. X-rays

D. Radio waves

E. Infrared waves

F. Ultraviolet radiation

G.Visible light

Section Review p. 5331-5 Questions AND Answers

24. Which of the following is not found in the nucleus of an atom? A. Protons B. Neutron C. Electron

Science Book p. 535

13. Advantages to using radio waves to communicate:a. ________________________b. ________________________

14. The radio waves broadcast by a station at its assigned frequency are its _______________.

15. AM and FM are abbreviations for ______________________and ______________________.

16.________________________(GPS) uses satellites, ground stations, and portable units to locate things on Earth.

25. Which of the following scientists studies the oceans?

A. Oceanographer B. Astronomer C. Meteorologist

Electromagnetic Spectrum - BrainPop