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Allegra Guzmán del Rio Januaruy,5,2013
#13 4.A
¿When light goes in to a new material it?
changes direction
reflectsstays in a
straight line
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Which of the following is an artificial light source?
The sun
The moon
A bonfire
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What do we need to make a light bulb work?
Electric current sun
water
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What device products light by current trough a gas?
A neon sign
A prism
A flash light
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What can you infer about the environment the anglerfish lives in?
It must extremely dark
It must extremely
bright
It must be filled with other fish
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What could you use to split whit light into its component colors?
A flashlight
A prism
A light bulb
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Only a minute portion of the electromagnetic spectrum can be seen whit the human eye. In this context, what does minute mean?
60 seconds
small
large
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When you look at your teacher´s face, how can you see it?
Light reflects off of her face
Her face emanates light
Light refracts through her face
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high
low
none
Conductors have high or low resistance?
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watts
kg
km
Electrical power is measured by which units?
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100°
150°200°
Which is the boiling point of water?
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watering
Melting point
Boiling point
How do we call the temperature at which solids melts into liquids?
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gas
liquid
solid
Ithas no rigid structure, but it has a fixed volume
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2
3
How many states of matter there are?
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liquid
matter
light
Anything that has mass and takes up space
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