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Which object is opaque?
 
metal
 
glass
 
air
 
water
a type of energy that you can hear
 
sound energy
 
light energy
 
heat energy
 
absorption
a lens that is thicker at the edges than in the middle
 
concave
 
convex
 
refracction
 
reflexion
A lens that is thicker in the middle than at the edges
 
convex
 
concave
 
mirror
 
absorption
a 3D triangular object made of clear glass or plastic that refracts light
 
prism
 
convex
 
mirror
 
concave
A change in the direction of light
 
refraction
 
reflection
 
concave lenses
 
prism
On a hot summer day, a black shirt gets hot because light is _____________
 
absorbed
 
reflected
 
refracted
 
attraction
The bouncing of light off of a smooth surface
 
reflection
 
refraction
 
absorption
 
transmitted
Which object is Opaque?
 
brick
 
glass
 
waxed paper
 
stained glass window
If you filled a glass with water and struck it with a metal spoon, how could you change the pitch?
If you add more water, the higher the pitch will be. If you take out water, the lower the pitch will be.
A guitar string makes a higher pitched sound when you tighten the string. Why?
 
Tightening the string makes it vibrate faster.
 
Tightening the string makes it vibrate slower
 
Tightening the string makes the string longer
 
Tightening the string makes the volume louder
Do shorter sound waves, or waves with a lower amplitude, have a higher or lower volume?
 
Lower
 
higher
 
no volume
 
no change in volume
Do sound waves closer together have a higher or lower pitch?
 
Higher
 
lower
 
no change in pitch
 
equal pitches
A __________________ object is something you can see through clearly
 
transparent
 
translucent
 
opaque
 
cloudy
To quickly move back and forth
 
vibrate
 
reflect
 
refract
 
sound
Sound waves travel through...
solids, liquids, and gasses.
What is it called when a sound bounces off of an object and you can hear it over and over?
An echo.
What is a measure of how high or how low a sound is?
 
pitch
 
volume
 
refraction
 
decibel
What makes a sound?
 
Vibrations in the air.
 
light getting absorbed and reflected
 
convex lens
 
concave lens
When you hold up a prism to a light source, what happens to the light when it passes through and leaves out the other side of the prism?
It bends after it enters the prism and separates into the colors that make up white light.
What solid and transparent object separates white light into different colors?
A prism.
What type of lens curves inward and causes light to spread out?
Concave
What type of lens is oval shaped, thicker in the middle, and can help magnify?
convex
Refraction occurs when...
light bends.
When a flashlight is aimed at a mirror or other smooth and shiny object, what happens to the light after if first hits the mirror?
It bounces off at the same angle that it hit the mirror.
Reflection occurs when...
light strikes a surface and bounces off.
What kind of object does not allow any light to pass through it so that you cannot see through it?
Opaque
What kind of object allows some light to pass through it and allows you to see a blurry or not so clear view of what is on the other side of it?
Translucent
What kind of object allows all light to pass through it, and you can see through it?
Transparent
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