• 9702 November 2017 Paper 12 Worked Solution | A-Level Physics

1 D                  11 D                21 A                31 A

2 A                  12 B                22 D                32 B

3 C                  13 D                23 D                33 D

4 D                  14 A                24 B                34 C

5 C                  15 B                25 C                35 A

6 B                  16 A                26 D                36 B

7 B                  17 D                27 D                37 B

8 D                  18 A                28 C                38 A

9 C                  19 B                29 C                39 A

10 B                20 D                30 D                40 C

6 - Ans: B.

A hot-air balloon is moving vertically upwards with a constant speed of 3.00 m s-1.

12 - Ans: B.
The diagram shows a solid cube with weight W and sides of length L. It is supported at rest by a frictionless spindle that passes through the centres of two opposite vertical faces.


14 - Ans: A.
Two rigid steel beams XY and YZ are fixed at their lower ends and are hinged at Y. Each beam is inclined at 50 to the horizontal, as shown.



15 - Ans: B.
Air is trapped inside a glass bulb which is immersed in water and attached to a U-tube containing mercury.

21 - Ans: A.

A rectangular block of steel supporting a very large component of a bridge has a height of 15 cm and a cross-section of 20 cm × 12 cm.

32 - Ans: B.
An electron moves between two points X and Y in a uniform electric field, as shown.   The distance between X and Y is 4.0 cm and the line XY is at an angle of 60 to the direction of the field.



37 - Ans: B.
The circuit shown contains a resistor S that is neither in series nor in parallel with the other resistors.