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Ch. 12 Energy

Energy

QuestionAnswer
The loudness of a sound is its _____ volume
how high or low a sound is pitch
Electricity travels through a ______ circuit
How is sound made? vibration
Why do windows look bright and shiny? they reflect light
What type of material can you NOT see through? opaque
How do you open and close a circuit? a switch
What type of material allows heat to pass through quickly conductor
What type of material doesn't allow heat to travel through quickly? insulator
What do we measure temperature in? degrees
What do you need to complete a circuit wire, bulb, dry cell battery, switch
What happens to matter when it loses heat? the particles slow down.
How does a thick layer of fat help walruses? keep them warm
Why does a spoon look uneven in a glass of water? light refracts the object
Name 2 forms of energy we talked about in this chapter? sound and light
I have a complete circuit with a dry cell, lightbulb, switch and wire connecting it all, what can I do to make the light bulb brighter? add another dry cell or battery
I have a glass cup and an insulated cup in the sun. What will happen to the water in the glass cup? water will warm up
I have a glass cup and an insulated cup in the sun. What will happen to the water in the insulated cup? will not be as warm as the glass cup will not heat up as quickly
What vibrates in your ear when you hear sound? ear drum
In a pond on a sunny day, you try to pick up a pebble off the bottom. Why might you miss the pebble? The water is refracting the light from the sun making it look the like pebble is in another place.
What keeps cats and dogs warm in the cold weather? fur keeps them insulated
What happens to the food dogs and cats eat? turns into energy
Which kind of object would make a shadow in the Sun? an opaque object, light can not pass through.
Created by: CPS3rd
 

 



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