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WorksheetsLight & Heat
Total questions: 20
Worksheet time: 10mins
White light is actually composed of...
3 colors
4 colors
10 colors
7 colors
Which is faster?
A Ferrari F8 Spider
An Apache helicopter
Light
Sound
Light always travels...
By train
In a straight line
In a wavy line
It does not move
What kind of light sources are the Sun and a lightning?
(a)
What kind of light sources are a lamp and a candle?
(a)
Objects, when considering their interaction with light, can be...
Transparent, translucent or opaque
Transparent, transport or translucent
Translucent, refracting or opaque
Opaque, transparent or reflecting
We can see through a window beacuse it is...
(a)
We cannot see through our hand because it is...
(a)
If an object lets some light pass through, but not all of it, it is...
(a)
When we look at an object, the color we see is the one...
Absorbed by the object
Reflected by the object
We want to see
Reflected by our eyes
When light hits a smooth surface...
The rays reflect in one direction
All the light is absorbed
The rays reflect in different directions
The light is refracted
The difference in density between air and water makes light...
Be absorbed
Be reflected
Be refracted
Be blocked
A mirror...
Relfects all the light that hits it
Refracts all the light that hits it
Absorbs all the light that hits it
Is a transparent object
Reflection occurs when light...
Hits an object and bounces in another direction
Hits an object and is absorbed
Hits an object and passes through it
Hits and object and does not bounce at all
Refraction occurs when light...
Changes direction as it pases through an object
Does not change direction
Does not hit any object
Hits a surface and bounces in another direction
When we want to make an object colder, we...
Substract heat from it
Add heat to it
Do not do anything
Ask for help
A material that transfers heat very well is called a...
(a)
A material that does not transfer heat very well is called an...
(a)
When we want to evaporate a liquid, we...
Add heat
Substract heat
Put it in the fridge
Drink it
Which of these are thermal insulators?
A frying pan
A coat
A tree
A metallic spoon
