Electromagnetic Waves (AQA GCSE Physics): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
What type of wave are EM waves?
What type of wave are EM waves?
Transverse waves
What EM waves transfer
What EM waves transfer
Energy from source to absorber
Example of an EM radiation source
Example of an EM radiation source
The sun
What do infrared waves from the sun heat up on Earth?
What do infrared waves from the sun heat up on Earth?
The air (the absorber)
What causes EM waves to be transferred
What causes EM waves to be transferred
Vibrations of electric and magnetic fields
Do EM waves require a medium to travel?
Do EM waves require a medium to travel?
No
What can EM waves travel through?
What can EM waves travel through?
A vacuum (like space)
What do different types of EM waves form?
What do different types of EM waves form?
A continuous spectrum of EM radiation
What speed do all EM waves travel at?
What speed do all EM waves travel at?
The speed of light
3 things that differ between EM wave types
3 things that differ between EM wave types
Frequencies, wavelengths, and properties
What is the portion of the EM spectrum that humans can see called?
What is the portion of the EM spectrum that humans can see called?
Visible light
How much of the EM spectrum is visible light?
How much of the EM spectrum is visible light?
A very small portion