Colours Flashcards
What is a wave
Energy travailing through a substance
define frequency what does it have to do with the wavelength of the wave?
Frequency is the number of cycles of wave length
If the frequency of a wave was 12 hz, how many times would it pass by in six seconds?
72 times
Think of the slinky, splash, spring activity how did you increase the frequency of a wave? what does this mean in terms of energy?
Faster=smaller
Slower=longer
What are two types of waves?
1.Microwave
2.harmicord
What do we call visible light?
Colours!!!!
What happens to the speed of light when it goes to a different substance?
Slows down and bends
Which colour has the longest wavelength which colour has the shortest wavelength
Infro red is longest altra vilot is shortest
Which colour has more energy orange or green?
ORANGE
What happens when light hits a red sweater?
It reflects red and absorbs every other colour
Why can’t we see colour In the dark?
There is no light
If you shone a red light at a blue light
IT WOULD TURN PURPLE
What are the three primary colours of light in physics?
Red,blue, green
Why can snow cause snow blindness?
Too much light bounces of snow which is hard on rods &cons.
What is a use for radio waves
So we can listen to the radio
