Physics 🌈 Flashcards
(16 cards)
Name the colours in the visible colour spectrum in order
Red, orange, yellow, green, blue, indigo, violet
A source is…
Where you get it from
A detector is…
How you know it’s there
An application is…
What you see it for
A danger is…
What is the risk if you receive too much of it
What is on of the main source of ultra violet radiation?
The sun
Three things that can happen if your skin receives to much UV radiation
-burn
-wrinkles
-skin cancer
Why do you get cancer from receiving too much UV radiation?
Because the radiation breaks down your cells
According to Big Bang Theory, how is the universe changing over time?
The universe has expanded and cooled overtime
What’s a wavelength?
The length of a wave
What’s an amplitude
The hight of a wave
Frequency =
No. of waves
——————-
Time
No. of waves =
Frequency x time
Time =
No. of waves
——————
Frequency
What devices are radio waves in?
Television
Radio stations
Police radios
What can gamma rays be stopped by?
A thick wall of led
