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Unit 1: Physics on the Go
Friday 11 January 2013 – Afternoon
Time: 1 hour 30 minutes
You must have:
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.
The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question. Questions labelled with an asterisk (*) are ones where the quality of your written communication will be assessed
– you should take particular care with your spelling, punctuation and grammar, as well as the clarity of expression, on these questions.
The list of data, formulae and relationships is printed at the end of this booklet. Candidates may use a scientific calculator.
Read each question carefully before you start to answer it.
Keep an eye on the time.
Try to answer every question.
Check your answers if you have time at the end.
©2013 Pearson Education Ltd.
Answer ALL questions.
For questions 1–10, in Section A, select one answer from A to D and put a cross in the box and then
If you change your mind, put a line through the box
mark your new answer with a cross .
An object of weight 7 N is raised from a height of 2 m to a height of 8 m. The change in gravitational potential energy is
A 42 J
B 56 J
C 412 J
D 549 J
(Total for Question 1 = 1 mark)
Which of the following is a derived SI unit?
(Total for Question 2 = 1 mark)
A student is asked to solve the following problem:
An object is thrown upwards with a speed of 25 m s –1. How high will it be when the speed is 12 m s –1?
Which equation will allow the problem to be solved in a single calculation? A s = ut + ½ at2
B s = (u + v)t/2
C v = u + at
D v2 = u2 + 2as
(Total for Question 3 = 1 mark)
When beer is being brewed it can contain bubbles of gas rising through it as well as solid particles, such as grain particles, falling through it. Which row of the table correctly shows the forces on a rising gas bubble and a falling solid particle?
F = viscous drag, U = upthrust, W = weight
(Total for Question 4 = 1 mark)
A cylinder of length 50 cm has a force applied to it. The new length of the cylinder is 45 cm.
The quantity determined using
A compressive strain.
B compressive stress.
C tensile strain.
D tensile stress.
(Total for Question 5 = 1 mark)
An object is thrown horizontally from the roof of a building. Which pair of displacement–time graphs correctly shows the vertical and horizontal components of displacement for the object until it lands? Assume that there is no air resistance. Vertical
(Total for Question 6 = 1 mark)
Three springs X, Y and Z have forces applied to them. For each spring a graph is plotted of length L of the spring against force F. The graphs are shown below: L
Which of the springs obey Hooke’s law?
A X and Y
B X and Z
C Y and Z
D Y only
(Total for Question 7 = 1 mark)
A car of mass 1400 kg is travelling at 25 m s–1.
The kinetic energy of the car is
A 17.5 kJ
B 35.0 kJ
C 438 kJ
D 875 kJ
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