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Page 1

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Required practical's AQA ALevel Physics September 2015

Frequency of a stationary wave

Equipment
Signal generator
Vibration generator
Stand
2kg mass
1.5m length of string (eg 1.5mm thick)
Pulley which can be clamped to the bench
Wooden bridge slightly higher than the pulley
100g masses on a holder
Metre ruler
An…

Page 2

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Required practical's AQA ALevel Physics September 2015


Technical information
The signal generator should be operated for about 20 minutes in order for the frequency
to stabilise.
The power output (eg 20V peaktopeak) should be used. The output level should be
turned up to a value which gives steady vibrations of…

Page 3

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Required practical's AQA ALevel Physics September 2015

Length 3.43m + 0.0005m

Tension 2.9439N + 0.029N

Page 4

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Required practical's AQA ALevel Physics September 2015

Young's double slit experiment
Equipment
laser ­ class II optical laser with output 1mW or less
darkened slight with double slit `rulings' (usually 1mm slit separation)
Vernier callipers to measure slit separation
Adjustable single slit (might be unnecessary with the laser)
white screen…

Page 5

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Required practical's AQA ALevel Physics September 2015


Risk assessment
Laser shining into eyes ­ turn off when not in use/don't point at people, reflection off screen ­ use
plain surface e.g. matt balck

Results analysis
As the distance increased, so did the slit separation


Wavelength found = 5.9x107
m, real…

Page 6

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Required practical's AQA ALevel Physics September 2015

Determination of g by freefall method
Equipment

Stand and clamp
Electromagnet
Low voltage variable DC supply (to power the electromagnet)
2kg mass
Steel ball bearing
Two light gates with bosses to attach them to the stand
An electronic clock or data logger with…

Page 7

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Required practical's AQA ALevel Physics September 2015



Technical information

The electromagnet is a convenient way of releasing the ball bearing.
The low voltage supply should be set at the voltage specified by the manufacturer for the
electromagnet.
The supply is switched on and the ball bearing hung from the electromagnet.…

Page 8

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Required practical's AQA ALevel Physics September 2015

Counter 0.447sec + 0.000sec

Page 9

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Required practical's AQA ALevel Physics September 2015

Young's modulus
Equipment

Ceiling beam or suitably strong fixing to attach loaded wires
2 x 1.5m lengths of copper wire
scale and Vernier arrangement with integral clamps for the wires
micrometer screw gauge
metre ruler
2 x slotted kg mass holders
selection of…

Page 10

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Required practical's AQA ALevel Physics September 2015

The comparison wire compensates for sagging of the beam and thermal expansion effects,
and provides a reference point against which to measure the extension of the loaded test
wire


































Risk assessment
Masses falling ­ stand back/sand tray, wire snaps ­ wear safety googles,…

Comments

huey2912

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have you got the next 6 for year 2? It would be a life saver

CharlieA

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yes. they can be found here

https://getrevising.co.uk/resources/aqa-full-a-level-required-practicals

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