Which statement is true?
Some energies can be created. Some other can't
We can create energy
Energy can't come from nowhere. It just changes its form
When you turn off the light, it completely disappears. True or false?
False. The energy stays in the room, but it moves too fast to see it.
What is the speed of light?
300,000 KM PER HOUR
300,000 KM PER MINUTE
300,000 KM PER SECOND
very fast
Do surfaces reflect 100% of the light that hits them?
Yes, they do.
Some of them, like mirrors
No, they don't. Everything absorbs a bit of it.
How long would it take for us to notice that the Sun turned off?
8 hours
We would notice immediately
8 minutes and 20 second
It depends if I'm sleeping or not
How can we see things?
We have eyes. They take care of it
Light rays bounce off things and into our eyes
Light makes things apper
Where do the stars go in the daytime?
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This butterfly is yellow. Or, at least, we see it yellow. How does that happen?
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How do rainbows happen?
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Can we see all types of light? Can you give me some examples?
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