# Physics

Topics: Electric charge, Atom, Neutron Pages: 12 (1714 words) Published: November 19, 2011
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For Examiner’s Use

General Certiﬁcate of Secondary Education January 2009 ADDITIONAL SCIENCE Unit Physics P2 PHYSICS Unit Physics P2 Higher Tier Monday 19 January 2009 For this paper you must have: a ruler. You may use a calculator.

PHY2H

H
For Examiner’s Use
Question Mark Question Mark

9.00 am to 9.45 am

1 2

3 4 5

Time allowed: 45 minutes Instructions Use black ink or black ball-point pen. Fill in the boxes at the top of this page. Answer all questions. You must answer the questions in the spaces provided. Answers written in margins or on blank pages will not be marked. Do all rough work in this book. Cross through any work you do not want to be marked. Information The maximum mark for this paper is 45. The marks for questions are shown in brackets. You are expected to use a calculator where appropriate. You are reminded of the need for good English and clear presentation in your answers. Advice In all calculations, show clearly how you work out your answer.

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Total (Column 1)

Total (Column 2)

TOTAL

Examiner’s Initials

(JAN09PHY2H01)

G/K39421

6/6/6/6

PHY2H

2 Answer all questions in the spaces provided.

Areas outside the box will not be scanned for marking

1 The diagram shows the passenger train on part of a rollercoaster ride. 1 (a) Which arrow shows the direction of the resultant force acting on the passenger train? Put a tick ( ) in the box next to your choice.

Direction of travel

(1 mark) 1 (b) At the bottom of the slope, the passengers in the train all have the same speed but they each have a different kinetic energy. Why is the kinetic energy of each passenger different? ............................................................................................................................................. ............................................................................................................................................. (1 mark) 1 (c) For part of the ride, the maximum gravitational field strength acting on the passengers seems 3 times bigger than normal. Normal gravitational field strength = 10 N/kg 1 (c) (i) Calculate the maximum gravitational field strength that seems to act on the passengers during the ride. ................................................................................................................................... ................................................................................................................................... Maximum gravitational field strength = .............................. N/kg (1 mark)

(02)

G/K39421/Jan09/PHY2H

3 1 (c) (ii) One of the passengers has a mass of 80 kg. Use the equation in the box to calculate the maximum weight this passenger seems to have during the ride.

Areas outside the box will not be scanned for marking

weight = mass × gravitational ﬁeld strength

Show clearly how you work out your answer. ................................................................................................................................... ................................................................................................................................... Maximum weight = .............................. N (2 marks)

5

Turn over for the next question

Turn over

(03)

G/K39421/Jan09/PHY2H

4 2 (a) The diagram shows an athlete at the start of a race. The race is along a straight track.

Areas outside the box will not be scanned for marking

In the first 2 seconds, the athlete accelerates constantly and reaches a speed of 9 m/s. 2 (a) (i) Use the equation in the box to calculate the acceleration of the athlete.

acceleration

=

change in velocity time taken for change