Vocabulary
What do you call objects that allow all light to pass through them?
Transparent objects
What do you call objects that do not allow any light to pass through them?
Opaque objects
What makes a pencil look broken when it is placed in a cup of water?
Refraction
Why do you see lightning before you hear thunder?
Light travels faster than sound.
What color coat would help you feel warmer on a cold sunny day- white or black?
Black
What is the term for when light waves bounce off an object?
Reflection
What do you call objects that allow some light to pass through them?
Translucent objects
What travels faster, light or sound?
Light
When sound waves are sent through water and bounce off anything in their path. This is used to find shipwrecks and map the ocean floor
Sonar
Bats, whales, and dolphins use this to emit pulsed sounds of high frequency to fly, swim, an locate food.
Echolocation
Give three examples of transparent objects.
Answers may vary.
What is the term for when light waves bend when passing from one medium to another?
Refraction
What is the name for a sound wave?
Compression Wave
Which material will sound travel through the fastest?
water, air, or steel
steel
List the colors of the visible light spectrum in order.
Red, orange, yellow, green, blue, violet
What is the term for making something appear larger?
Magnify
What tool can be used to separate white light into all colors of visible light?
A prism
Explain what glasses do to the light.
Refract the image to make it clearer.
I shine a light through an object. The light scatters after being transmitted through the object. What type of object is it?
Translucent
Which color of the visible light spectrum has the shortest wavelength
Violet
What is a medium?
Something that light travels through.
Can sound be heard in outer space. Explain
No, because there is no matter in outer space.
What phase of matter does sound travels the fastest, liquid, solid, or gas?
Solid
True/ False. Higher frequency creates low pitch which produces a lower sound.
False
Name the parts of a transverse wave
trough, wavelength, crest