Stickman Physics Emag Waves Quiz

Which one has the lowest frequency?

• Radio

• Light

• Infared

• Ultraviolet

Which has a longer wavelength

• Microwave

• X-ray

Which has the greatest energy?

• Infared

• Ultraviolet

• Microwave

Which wave has the highest penetrating power (and is more dangerous)?

• Microwave

• Ultraviolet

• X-ray

• Gamma Ray

What is the wavelength of a 4.2 x 10⁵ Hz AM radio wave?

• 5.2 x 10⁵ m

• 577 m

• 714 m

• 4.2 x 10⁵ m

What is the wavelength of a 4.5 x 10⁶ Hz AM radio wave?

• 200 m

• 66.7 m

• 1.5 x 10⁶ m

• 150 m

Does a 5.2 x 10⁵ Hz or 1.5 x 10⁶ Hz AM radio wave have a longer wavelength?

• 5.2 x 10⁵

• 1.5 x 10⁶

• They're both the same

What is the frequency of an electromagnetic wave that has a wavelength of 10,000 m?

• 30,000 Hz

• 20,000 Hz

• 4.5 x 10⁵ Hz

• 15 Hz

How long does it take for light from the sun to reach earth if the sun is 1.5 x 10¹¹ m away?

• 5 minutes

• 8 minutes, 20 seconds

• 0.1 seconds

• 4 seconds

If the speed of a wave remains constant and the wavelength (𝜆) triples, how will the frequency compare to the original?

• Also triple

• Decrease by 1/3

• Increase by 9

• Decrease by 1/9