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Page 1

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AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
6 Mark Question Answers


January 2010

Describe how to obtain, accurately by experiment, the data to determine the Young's Modulus of a
Metal Wire. A space is provided for a labelled diagram. The quality of your written answer will be…

Page 2

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AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
6 Mark Question Answers


On her next jump the gymnast decides to reach a height above position B. Describe and explain, in
terms of energy and work, the transformations that occur as she ascends from her lowest position A
until…

Page 3

Preview of page 3
AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
6 Mark Question Answers


Figure 4 shows a stationary wave on a string. The string is tied onto a thin metal bar at A and fixed at
B. A vibration generator causes the bar to oscillate at a chosen frequency.…

Page 4

Preview of page 4
AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
6 Mark Question Answers


A Scientist is going to use a double slit arrangement to carry out measurements in order to
determine the wavelength of light from a laser.




The Scientist has a double slit of a known separation. Describe…

Page 5

Preview of page 5
AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
6 Mark Question Answers



Correct use of n = dsin
And measure appropriate angle (e.g. `to first order beam' is the minimum required)
And method to measure angle (e.g. tan = D X , spectrometer, protractor)

1
For full marks:…

Page 6

Preview of page 6
AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
6 Mark Question Answers


measurements. A space is provided for a labelled diagram should you wish to include one. The quality
of your written communication will be assessed in this question. [6 Marks]




Drawing a graph of F against l…

Page 7

Preview of page 7
AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
6 Mark Question Answers


An explanation of how nodes and antinodes form.

The quality of written communication will be assessed in your answer. [6 Marks]




Waves (meet when) travelling in opposite directions/cross/wave meets a reflected wave
Same wavelength (or frequency)…

Page 8

Preview of page 8
AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
6 Mark Question Answers


Figure 4 shows the velocity ­ time graph for steel ball A




Explain the shape of the graph in Figure 4. Your account should include:
How the velocity and acceleration of the steel ball vary with…

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