Tuesday, April 30, 2019

Science Test Friday


What it covers:

4 Properties of light:

  1. Light can be absorbed
  2. It moves in a straight line
  3. It can be refracted
  4. It can be reflected
4 Properties of sound:


  1. Sound travels in waves;
  2. Sound is caused by vibrations;
  3. Sound can be absorbed and reflected;
  4. Sound can be modified;
Artifical and Natural light - Give examples of each.

Difference between pitch and volume (think back to our musical instruments and what you learned in Ms. Soltes' class).

LED versus Incandescent Lights - which are better and why? Check out this comparison if you need help: https://www.viribright.com/lumen-output-comparing-led-vs-cfl-vs-incandescent-wattage/

Light and sound are Energy! They travel in waves, but we cannot see it without the use of specialized machines. 

Sound has Vibrations and solids absorb sound better than soft or liquid objects.

What absorbs light better? Light or dark colors? What reflects better? Light or dark colors?

What happens to light when it hits water? Does it reflect? Bend (refract)? Nothing?

Remember: I have posted a lot of science videos, and we have done many labs testing light and sound. Please look back at it all to help you answer these questions if you are a bit hazy!