Physics AS Revision Notes - Excluding materials

Ive condensed a couple of text books into a small booklet! Great for revision seeing as the exams are very close

If there is anything I could improve on, or change please comment and tell me!

I AM VERY SORRY FOR ANY SPELLING MISTAKES!!!

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  • Created by: arbi_h
  • Created on: 29-04-16 19:27

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Physics Revision
AS ­ REVISION (EXCLUDING MATERIALS) ARBI H
2016

Page 2

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Waves
- Cycle = One complete vibration of a wave - Displacement = How far a point on the
wave has moved from its undisturbed position
(metres) - Amplitude = Maximum magnitude of displacement - Wavelength, =
length of one whole wave cycle from two similar points
- Period (T),…

Page 3

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o Polarising glasses uses this effect blocks unwanted glare at a certain angle
Television and Radio signals are polarised
- Aerial rods are horizontal so they line up with the receiving aerial otherwise the
strength of the signal will be lower - Same for radios aligning aerial to transmits
and…

Page 4

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To get interference patterns the two sources must be coherent
- Can still happen if there's a different wavelength and frequency, its all just a jumble
two sources are coherent if they have the same WAVELENGTH, FREQUENCY and a
FIXED PHASE DIFFERENCE
- Can get destructive interference when there is…

Page 5

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-
- Twice the frequency of the first harmonic. There are two "loops" with a node in the
middle and one at each end
- - - n Which =
iX a

mode its in
- Microwaves reflected off a metal surface/plate set up a stationary wave First nodes
and…

Page 6

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Diffraction
- Amount of diffraction depends on the wavelength compared to the size of the gap
o Gap greater than the wavelength = diffraction unnoticeable o Noticeable diffraction
when gap several wavelength wide o Most diffraction = same size wavelength o Gap
smaller = waves reflected back - Light shone…

Page 7

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Can do similar with microwave

Page 8

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2. Danger of working with lasers/ prevent:
o Damage retina, warning signs outside, wear laser safety goggles, turn off laser
when not needed
Young's Double Slit formula Fringe spacing - w =
)( í

D= distance from slit to screen S= Slit spacing Fringe spacing ­ Distance from the
centre…

Page 9

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Page 10

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Sin can't have greater than 1 therefore you'll get to a certain there is no more
orders that exist
Diffraction Gratings help to identify elements and calculate atomic spacing
1. White light is a mixture of colours, if you diffract white light you get a spectra due to
all the…

Comments

LouiseG

Report

ARBI my ******** computer crashed and saved the rating as 4* when I meant to press 5 b/c i was doing it on my phone and my fat fingers got in the way :(

I'm so sorry I I wanted to change it but I can't !!

Brilliant resource :D 5*

LouiseG

Report

Good to see you got it back up to 5* :D

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Physics AS Revision Notes - Excluding materials

Ive condensed a couple of text books into a small booklet! Great for revision seeing as the exams are very close

If there is anything I could improve on, or change please comment and tell me!

I AM VERY SORRY FOR ANY SPELLING MISTAKES!!!

  • Created by: arbi_h
  • Created on: 29-04-16 19:27

Pages in this set

Page 1

Preview of page 1
Physics Revision
AS ­ REVISION (EXCLUDING MATERIALS) ARBI H
2016

Page 2

Preview of page 2
Waves
- Cycle = One complete vibration of a wave - Displacement = How far a point on the
wave has moved from its undisturbed position
(metres) - Amplitude = Maximum magnitude of displacement - Wavelength, =
length of one whole wave cycle from two similar points
- Period (T),…

Page 3

Preview of page 3
o Polarising glasses uses this effect blocks unwanted glare at a certain angle
Television and Radio signals are polarised
- Aerial rods are horizontal so they line up with the receiving aerial otherwise the
strength of the signal will be lower - Same for radios aligning aerial to transmits
and…

Page 4

Preview of page 4
To get interference patterns the two sources must be coherent
- Can still happen if there's a different wavelength and frequency, its all just a jumble
two sources are coherent if they have the same WAVELENGTH, FREQUENCY and a
FIXED PHASE DIFFERENCE
- Can get destructive interference when there is…

Page 5

Preview of page 5
-
- Twice the frequency of the first harmonic. There are two "loops" with a node in the
middle and one at each end
- - - n Which =
iX a

mode its in
- Microwaves reflected off a metal surface/plate set up a stationary wave First nodes
and…

Page 6

Preview of page 6
Diffraction
- Amount of diffraction depends on the wavelength compared to the size of the gap
o Gap greater than the wavelength = diffraction unnoticeable o Noticeable diffraction
when gap several wavelength wide o Most diffraction = same size wavelength o Gap
smaller = waves reflected back - Light shone…

Page 7

Preview of page 7
Can do similar with microwave

Page 8

Preview of page 8
2. Danger of working with lasers/ prevent:
o Damage retina, warning signs outside, wear laser safety goggles, turn off laser
when not needed
Young's Double Slit formula Fringe spacing - w =
)( í

D= distance from slit to screen S= Slit spacing Fringe spacing ­ Distance from the
centre…

Page 9

Preview of page 9

Page 10

Preview of page 10
Sin can't have greater than 1 therefore you'll get to a certain there is no more
orders that exist
Diffraction Gratings help to identify elements and calculate atomic spacing
1. White light is a mixture of colours, if you diffract white light you get a spectra due to
all the…

Comments

LouiseG

Report

ARBI my ******** computer crashed and saved the rating as 4* when I meant to press 5 b/c i was doing it on my phone and my fat fingers got in the way :(

I'm so sorry I I wanted to change it but I can't !!

Brilliant resource :D 5*

LouiseG

Report

Good to see you got it back up to 5* :D