Understanding Light and Its Energy

Question 02

How does light differ in terms of energy across its wavelengths?

Question 03

How fast does light travel in a vacuum?

Question 04
What happens when light travels at 186,000 miles every second in a vacuum?
• A)
  It can go around the Earth more than seven times every second
• B)
  It causes visible light to become invisible
• C)
  It slows down significantly when passing through water
• D)
  It is outpaced by a jet plane
Question 05

What is true about the relationship between wavelength size and energy carried by light?

Question 06

What is white light made up of?

Question 07
What is the reason the sun appears yellow against the blue sky?
• A)
  There is more blue light than yellow light
• B)
  The light from the sun is mostly white
• C)
  There is just a little more yellow wavelengths than other colors
• D)
  The sun does not emit any colors at all
Question 08

What other sources of light are mentioned as being in the sky apart from the sun?

Question 09

What are some sources of light other than the sun?

Question 10
What are some effects of the absence of light on Earth and living beings?
• A)
  There would be no colors or visibility.
• B)
  Plants would grow faster without light.
• C)
  Heat would be generated from other sources.
• D)
  Night would last indefinitely.