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1. Where do most of the visible electromagnetic waves on Earth come from?

1. Where do most of the visible electromagnetic waves on Earth come from? . WEEK 24 SKIP A PAGE IN YOUR CRCT NOTEBOOK!!. X-rays The sun Radio waves Fluorescent. 2. Which type of electromagnetic wave can cause sunburn and make certain minerals glow?. Infrared Ultraviolet Microwaves

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1. Where do most of the visible electromagnetic waves on Earth come from?

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  1. 1. Where do most of the visible electromagnetic waves on Earth come from? WEEK 24SKIP A PAGE IN YOUR CRCT NOTEBOOK!! • X-rays • The sun • Radio waves • Fluorescent

  2. 2. Which type of electromagnetic wave can cause sunburn and make certain minerals glow? • Infrared • Ultraviolet • Microwaves • Gamma rays

  3. 3. Which of the following statements about electromagnetic waves is true? • Electromagnetic waves all have the same speed. • Electromagnetic waves all have the same wavelength. • Electromagnetic waves only travel through water. • Electromagnetic waves all have the same amount of energy.

  4. 4. The colors of the visible spectrum in order from longest to shortest wavelength are A. violet, indigo, blue, green, orange, yellow, red B. Red, yellow, orange, violet, indigo, blue, green C. red, orange, yellow, green, blue, indigo, violet D. Red, orange, violet, indigo, blue, green, yellow

  5. 5. What determines the color of light? • A prism • Its refraction • Its wavelength • Its incidence

  6. 6. What kinds of waves are given off by the heating coils of a toaster oven? • Red light waves and microwaves • Ultraviolet waves and infrared waves • Red light waves and infrared waves • X-rays and red light waves

  7. 7. The different kinds of electromagnetic waves vary in their • speed. • wavelength. • particle size. • ability to travel through space.

  8. 8. Which of the following lists electromagnetic waves from highest energy to lowest energy? • Radio waves, gamma rays, microwaves • Ultraviolet light, gamma rays, infrared light • X-rays, ultraviolet light, radio waves • X-rays, radio waves, ultraviolet light

  9. 9. Sound travels at a speed of about 340 meters/second in air. If a person hears a police siren 170 meters away, how long did it take for the sound to travel from the police siren to the person’s ear? • 0.5 seconds • 2.0 seconds • 5.0 seconds • 20.0 seconds

  10. 10. What is an object that reflects some light and transmits some light called? • Colored • Diffuse • Opaque • translucent

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