This class was created by Brainscape user Lillian Parkinson -Hill.
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Lillian Parkinson -Hill
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Decks in this class (27)
waves
What is a transverse wave 1,
Examples of transverse waves 2,
What is a longitudinal wave 3
14
cards
measuring angles in radians
360 in radians 1,
Radians equation 2
2
cards
phase
What is phase 1,
What is phase measured in 2,
One full cycle 1 wavelength is 3
7
cards
Superposition of waves
What is superposition of waves 1,
Principle of superposition of wav...,
The superposition of two coherent...
6
cards
coherence
Two waves are said to be coherent...
1
cards
Diffraction
What is diffraction 1,
The amount of diffraction depends 2,
Diffraction gratings 3
3
cards
Stationary waves
Stationary waves 1,
This can be setup on a string fix...,
Stationary waves on a vibrating s...
3
cards
Nodes & antinodes
Blank 1
1
cards
harmonic
First harmonic fundamental freque...,
Second harmonic 2,
Third harmonic 3
3
cards
note sound
Why does the same note sound diff...,
Harmonic frequencies wind instrum...,
Harmonic frequencies wind instrum...
5
cards
Energy levels
In an atom electrons are found in 1,
These energies levels are 2,
For example the electron in the h...
4
cards
Ground state and excitation of electrons
Electrons normally occupy the 1,
The electron can absorb energy 2,
Excitation energy is the 3
3
cards
Ionisation
If an electron absorbs enough ene...,
The ionisation energy is defined ...
2
cards
De-Excitation
After excitation electrons eventu...,
When they fall back they release ...,
The energy of the photon 3
4
cards
Emission
Excited electrons soon return to ...,
Emission spectra 2,
How it is produced 3
5
cards
Refraction
What is refraction 1,
This bending occurs because 2,
When light passes from a less opt...
9
cards
critical angle and TIR
What dose tir stand for 1,
Tir can only take place if 2,
What is the effect of tir 3
9
cards
optical fibres and endoscope
An optical fibre is a 1,
Optical fibres consist of a 2,
How light travels in an optical f...
8
cards
Analogue and digital signals
Signals can be either 1,
Analogue signals are 2,
Digital signals can only 3
12
cards
FIBRE OPTIC BROADBAND
Fibre optic broadband enables 1,
Fibre optic technology allows 2,
Speeds within the network backbon...
5
cards
Properties of electromagnetic waves
They are all waves 1,
They all travel at the 2,
They transfer 3
6
cards
The electromagnetic spectrum
The electromagnetic spectrum is 1,
The order is from lowest frequenc...,
The higher the frequency the high...
5
cards
radio waves & communication
Long radio waves have wavelengths...,
Long radio waves can 2,
Long radio waves this bending all...
9
cards
microwaves & communication
Microwaves have higher frequencie...,
They travel in straight lines and...,
A transmitter on earth sends an u...
4
cards
infrared & communication
Infrared ir is electromagnetic ra...,
Ir is used for 2,
Ir requires line of sight because...
4
cards
Applications of EM in communication
Bluetooth 1,
Wi fi 2,
Mobile phone 3
3
cards
calculating intensity
The intensity of a wave decreases...,
Following the inverse square law 2
2
cards
More about
Unit 1 Physics
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