• 9702 November 2016 Paper 12 Worked Solutions | A-Level Physics

1 B                  11 A                21 D                31 A

2 D                  12 D                22 B                32 C

3 D                  13 B                23 A                33 D

4 C                  14 D                24 B                34 B

5 A                  15 C                25 A                35 B

6 D                  16 C                26 B                36 B

7 B                  17 C                27 D                37 C

8 B                  18 B                28 C                38 A

9 D                  19 C                29 C                39 C

10 C                20 C                30 B                40 A

5 - Ans: A.
A value for the acceleration of free fall on Earth is given as (10 ± 2) m s-2. Which statement is correct?


6 - Ans: D.
An experiment to determine atmospheric pressure P uses the equation P = ρ gh where


7 - Ans: B.
A lorry travels at a constant speed and then decelerates until it stops.


8 - Ans: B.
The graph shows the vertical velocity of a parachutist during the first 20 s of her jump.


10 - Ans: C. See solution 112 at
In order that a train can stop safely, it will always pass a signal showing a yellow light before it reaches a signal showing a red light.



17 - Ans: C.
A rigid cross-shaped structure having four arms PO, SO, QO and RO, each 1.00 m long, is pivoted at O. Forces act on the ends of the arms and on the midpoints of the arms as shown.


20 - Ans: C.
A car travels at a constant speed of 25 m s-1 up a slope. The wheels driven by the engine exert a forward force of 3000 N.


22 - Ans: B.
Four solid steel rods, each of length 2.0 m and cross-sectional area 250 mm2, equally support an object weighing 10 kN.



25 - Ans: A.
A man standing next to a stationary train hears sound of frequency 400 Hz emitted from the train’s horn.



30 - Ans: B.
Two parallel circular metal plates X and Y, each of diameter 18 cm, have a separation of 9.0 cm.


33 - Ans: D. See solution 342 at
A wire carries a current of 2.0 A for 1.0 hour.


37 - Ans: C.
In the circuit shown, there is a current of 3.0 A in the 2.0 Ω resistor.


38 - Ans: A.
In the circuit below, P is a potentiometer of total resistance 10 Ω and Q is a fixed resistor of resistance 10 Ω.