Question

directions: for each of the following, write the letter of the term or phrase that best completes the sentence.

1. the range of frequencies in which electromagnetic waves occur is called the

a. radar c. unb rays
b electromagnetic spectrum d. visible light

1. radio waves make _ vibrate.

a. electrons c. light particles
b. molecules d. photons

1. _ are used in magnetic resonance imaging to map body tissues.

a. x rays c. infrared waves
b. radio waves d. ultraviolet waves

1. _ are absorbed by the ozone layer.

a. infrared waves c. radio waves
b. gamma rays d. ultraviolet waves

1. radio waves with wavelengths of less than 1 m are called _

a. gamma rays c. infrared light
b. x rays d. microwaves

1. warmth that you feel from a fire is transmitted to you by _

a. infrared waves c. mri
b. ultraviolet rays d. radio waves

1. the range of electromagnetic waves that you can detect with your eyes is _

a. infrared waves c. microwaves
b. visible light d. x rays
electromagnetic waves · reinforcement
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Explanation:

• Question 2: The electromagnetic spectrum encompasses all frequencies of electromagnetic waves.
• Question 3: Radio waves cause electrons to vibrate.
• Question 4: Radio waves are used in Magnetic Resonance Imaging (MRI) to map body tissues.
• Question 5: Ultraviolet waves are absorbed by the ozone layer.
• Question 6: Radio waves with wavelengths less than 1 m are called microwaves.
• Question 7: The warmth from a fire is transmitted by infrared waves.
• Question 8: The range of electromagnetic waves detectable by the eyes is visible light.

Answer:

1. b. electromagnetic spectrum
2. a. electrons
3. b. radio waves
4. d. ultraviolet waves
5. d. microwaves
6. a. infrared waves
7. b. visible light