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Lightening
takes the shortest distance
1 of 25
Sound and Light Wavelength
sound has a longer wavelength
2 of 25
Wavelengths and Diffraction Significance
longer wavelengths are more significant in diffraction
3 of 25
Evidence for wave nature
diffraction of light passing through a narrow aperture
4 of 25
Voltmeters and Resistance
they have a resistance
5 of 25
Voltage and Resistors
they share the voltage in proportion to their resistance
6 of 25
If resistance was to increase in a potential divider
then the voltage would increase
7 of 25
Increasing the Current
-increase in temperature -increase in KE vibrations -increase in resistance -decrease in rate of current
8 of 25
Current across resistors
it is the same across all resistors
9 of 25
Removing a resistor in parallel
increases the overall resistance of the section
10 of 25
How does stretching a wire affect the resistance?
-increase in length increases resistance -decreasing area increases resistance -R=pl/A
11 of 25
Area equation
volume/length
12 of 25
Proving l proportionality
R=p(l)^2/v
13 of 25
Why zigzag a wire in a gauge?
-longer wire fits in a smaller space -small change in length and still a large change in resistance
14 of 25
Velocity of a Wave Equation
v= F
15 of 25
Period Equation
T= 1/F
16 of 25
Frequency of a Wave Equation
F= number of waves/time
17 of 25
Constructive Superposition
-if the path difference is n -two waves arriving in phase in the same place at the same time and so combine to reinforce each other -n2 radians out of phase
18 of 25
Destructive Superposition
-if path difference is n1/2 -two waves that are out f phase and arrive in the same place at different times -not n2 radians in phase
19 of 25
Coherence
-of the same frequency or wavelength with a constant phase relationship -if the path difference is n
20 of 25
Wavefront
the leading edge of a single pulse
21 of 25
Pulse
an oscillation that lasts for one period
22 of 25
Period
the time it takes for the system to complete one cycle/operation
23 of 25
Cycle
the sequence of events that form one 'unit' of periodic motion
24 of 25
Frequency the number of cycles executed per unit time
the number of cycles executed per unit time
25 of 25

Other cards in this set

Card 2

Front

Sound and Light Wavelength

Back

sound has a longer wavelength

Card 3

Front

Wavelengths and Diffraction Significance

Back

Preview of the front of card 3

Card 4

Front

Evidence for wave nature

Back

Preview of the front of card 4

Card 5

Front

Voltmeters and Resistance

Back

Preview of the front of card 5
View more cards

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