The Electromagnetic Spectrum!

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

The electromagnetic spectrum review questions...

Name: *

Email:

1. When astronauts landed on the Moon, radio signals helped them communicate with people on Earth. It took 1.3 s for a signal to travel from the Moon to Earth.Which of the following is the best estimate of the distance between Earth and the Moon?

115,000,000 m

231,000,000 m

390,000,000 m

780,000,000 m

Clear selection

2. Which of the following statements describes electromagnetic waves?

They have mass.

They are transverse waves.

They require a medium to propagate.

They travel at varying speeds through a vacuum.

Clear selection

3. Food can be sterilized by exposing it to high-frequency radiation. The higher the frequency of electromagnetic radiation used, the better it can penetrate thick layers of food.Which part of the electromagnetic spectrum would be most effective for sterilizing food?

gamma rays

infrared waves

radio waves

visible light

Clear selection

4. Electromagnetic waves with low frequencies have been used for long-distance underwater communication. These waves most likely belong to which of the following parts of the electromagnetic spectrum?

gamma rays

infrared waves

radio waves

x-rays

Clear selection

5. During a thunderstorm, which of the following travels at a speed closest to 3.00 × 108 m/s?

wind from the storm

sound from the thunder

light from the lightning

rain from the storm clouds

Clear selection

Submit

Clear form

Never submit passwords through Google Forms.

This form was created inside of Boston Public Schools. Report Abuse

Forms