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Science L3: Sunlight and projectors
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What is in a projector that increases the size of the images? A lens OR a bulb
Lens
Why do we watch movies in a dark room?
As the light gets dimmer as it reaches the screen so the darkness makes it easier to see
The light from the projector will increase in brightness as it reaches the screen OR get less bright as it reaches the screen?
Gets less bright
Movie projectors make big images smaller. True or false
False
What does a lens in a pair of glasses do? Does it gather the light for the eye OR does it spread the light for the eye
Gather
Which will cause light to bend more , a flat piece of glass or a curved piece of glass
Curved
What does the word blur mean?
Unclear and noteasy to see
What is happening in this picture?
Distortion
What is happening in this picture?
Refraction
Why does a greenhouse cause plants to grow well?
Keeps heat in and creates water vapour
If I wanted to grow plants in an environment that is safe and quiet and still and causes the plants to grow well, what could I use?
A greenhouse
In a car what type of windows would help keep the car cooler?
Translucent windows
If the sun hits an opaque object, what happens to the suns rays? Do they bounce back OR get absorbed?
Get absorbed
If you want to wear sunglasses , what kind of glass would you use to protect your eyes? Transparent or translucent or opaque
Translucent
What does opaque mean? Light can bend through it OR light cannot move through it
Not move through it
Is this item transparent or tranlucent?
Transparent
What are 2 forms of energy that the sun gives earth?
Heat and light
How does sunlight move from the sun to earth? As rays or as projections
Rays
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