You must have: Total Marks
Calculator, ruler, Equation Booklet (enclosed)
Instructions
•• Use black ink or ball‑point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
•• Calculators may be used.
Any diagrams may NOT be accurately drawn, unless otherwise indicated.
• You must show all your working out with your answer clearly identified at the
end of your solution.
Information
•• The total mark for this paper is 100.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Instructure
questions marked with an asterisk (*), marks will be awarded for your ability to
your answer logically, showing how the points that you make are related
or follow on from each other where appropriate.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end. Turn over
, Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 (a) Figure 1 shows a circuit containing a battery and four other components.
battery
Figure 1
Label the four components in Figure 1, using words from the box.
ammeter lamp LDR
switch thermistor variable resistor
(4)
(b) The circuit in Figure 1 is switched on.
A charge of 1.2 C leaves the battery in a time of 4.0 s.
Calculate the current in the circuit.
Use the equation
charge
current =
time (2)
current = .............................................. . . . . . . . . . . . . . . . . A
(Total for Question 1 = 6 marks)
2
*P74488A0236*
, 2 (a) Figure 2 shows two gear wheels, P and Q.
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
P Q
Figure 2
P has 20 teeth.
Q has 10 teeth.
(i) P rotates once.
How many times does Q rotate when P rotates once?
(1)
A 200 times
B 20 times
C 10 times
D 2 times
(ii) A third gear wheel is added to the system in Figure 2 so that this third wheel
rotates in the opposite direction to Q but at the same speed as Q.
1. Draw an X on Figure 2 to show the position of this third gear wheel.
2. State how many teeth this third gear wheel has.
(2)
number of teeth = ......................... ............... . . . . . . . . . . . . . . . . . . . . . .
3
*P74488A0336* Turn over
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