
	Trending ▼ ICSE CBSE 10th ISC CBSE 12th CTET GATE UGC NET Vestibulares ResFinder

GCE JAN 2010 : AS 1Forces, Energy and Electricity - Revised

20 pages, 36 questions, 1 questions with responses, 1 total responses,

	gce	+Fave Message
	Profile Timeline Uploads Q & A

Home > gce >

Instantly get Model Answers to questions on this ResPaper. Try now!
NEW ResPaper Exclusive!

Formatting page ...

Sp N ec e i w ca tio n Centre Number 71 Candidate Number ADVANCED SUBSIDIARY (AS) General Certificate of Education January 2010 Physics Module 1: Forces, Energy and Electricity AY111 Assessment Unit AS 1 [AY111] WEDNESDAY 13 JANUARY, MORNING TIME 1 hour 30 minutes. INSTRUCTIONS TO CANDIDATES Write your Centre Number and Candidate Number in the spaces provided at the top of this page. Answer all questions. Write your answers in the spaces provided in this question paper. For Examiner s use only Question Marks Number 1 2 INFORMATION FOR CANDIDATES The total mark for this paper is 75. Quality of written communication will be assessed in question 9. Figures in brackets printed down the right-hand side of pages indicate the marks awarded to each question. Your attention is drawn to the Data and Formulae Sheet which is inside this question paper. You may use an electronic calculator. 3 4 5 6 7 8 9 10 Total Marks 5514.05 R 1 The following is a list of physical quantities. Examiner Only Marks Energy Force Temperature Acceleration Remark Distance (a) (i) Underline those that are vectors [1] (ii) State the difference between a vector and a scalar. ___________________________________________________ _________________________________________________ [1] (b) (i) Fig. 1.1 shows two children playing by pulling on a rope connected through a smooth hook on a beam. 210 N 128 N 55 20 A B Fig. 1.1 Child A pulls with a force of 210 N at an angle of 55 from the horizontal. Calculate the vertical component of the force with which child A is pulling. Vertical component of force = __________ N 5514.05 R 2 [2] [Turn over (ii) When child B pulls on the rope with a force of 128 N at 20 above the horizontal, the rope does not move. Examiner Only Marks Remark 1. What condition must be met for this to happen? _________________________________________________ _______________________________________________ [1] 2. Confirm, by calculation, that the forces given satisfy this condition. [2] 5514.05 R 3 [Turn over 2 Describe an experiment to measure the acceleration of freefall, g. Examiner Only Marks Remark In your answer: (a) draw a labelled diagram of the arrangement, (b) give an account of the method, stating what is measured and how, (c) explain how the measurements are used to determine a value for g. (a) Diagram [2] (b) Method _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [3] (c) Determining a value for g _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [3] 5514.05 R 4 [Turn over 3 A train of mass 2.3 106 kg travels at a constant speed of 20 m s 1. There are opposing forces on the train of 0.6 N for every 1 kg of its mass. Examiner Only Marks Remark (a) (i) Calculate the opposing force acting on the train. Opposing force = _____________ N [1] (ii) If the train then accelerates at 0.20 m s 2, calculate the driving force required to overcome these opposing forces and produce this acceleration. Force = _____________ N [4] (b) The train now goes onto a section of the track which has been covered by leaves and is slippery as a result. Describe and explain what effect this would have on the motion of the train. _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [2] 5514.05 R 5 [Turn over 4 A diver stands on the end of an adjustable springboard as shown in Fig. 4.1. Examiner Only Marks Remark X 1.60 m 4.88 m Fixed base Fig 4.1 The diver exerts a moment on the springboard about the pivot at point X. (a) On what two factors will the size of the moment the diver exerts depend? _______________________________________________________ _____________________________________________________ [2] (b) The total length of the springboard is 4.88 m and the pivot X can be adjusted to move a distance of 0.28 m on either side of its centre position as shown in Fig. 4.1. (i) Show that the maximum moment that a diver of mass 65 kg can exert when she stands on the end of the springboard is 2270 N m. [3] 5514.05 R 6 [Turn over (ii) A different diver of mass 75 kg now stands on their own on the end of the springboard. By how much, and in what direction, will the pivot need to be moved from its central position for this diver to exert the same moment as the 65 kg diver in (b)(i)? Examiner Only Marks Remark Distance = __________ m Direction _____________________________ 5514.05 R 7 [4] [Turn over 5 (a) State the principle of conservation of energy. Examiner Only Marks Remark _______________________________________________________ _____________________________________________________ [1] (b) A cyclist starts from rest at the top of a hill which has a vertical height of 8 m. See Fig. 5.1. As she freewheels down the hill, 15% of her energy is dissipated as heat due to friction. 8m 6m Fig. 5.1 The combined mass of the bicycle and cyclist is 90 kg. (i) Calculate the speed with which she reaches the bottom of the hill. Speed = __________ m s 1 5514.05 R [2] 8 [Turn over (ii) The cyclist starts to pedal at the bottom of the next hill which is 6 m high. She reaches the top of this hill at a speed of 8.9 m s 1. Assuming there are no energy losses after the cyclist reaches the bottom of the first hill, calculate how much work the cyclist does as she pedals to the top of the second hill. Work done = __________ J 5514.05 R Examiner Only Marks Remark [4] 9 [Turn over 6 (a) State Hooke s Law. Examiner Only Marks Remark _______________________________________________________ _____________________________________________________ [1] A student carried out an experiment to investigate the stretching of a spring as various masses were added to provide the stretching force. The results obtained are shown in Table 6.1. The original length of the spring was 5.2 cm. Table 6.1 Mass added/ kg Load/N Length of spring/cm 1.00 6.1 2.00 7.0 3.00 7.9 4.00 8.8 5.00 Extension/cm 9.7 (b) Calculate values for the load and the extension for each added mass and fill in the appropriate columns in Table 6.1. [2] (c) (i) Use values from the table to prove that load is directly proportional to extension and hence calculate a value for the spring constant of the spring, k. k = _______ N m 1 [3] (ii) How could a value of k be obtained graphically from these results? ___________________________________________________ ___________________________________________________ _________________________________________________ [2] 5514.05 R 10 [Turn over 7 (a) (i) The accepted unit for force is the newton and the accepted unit for electromotive force is the volt. Express both the newton and the volt in base units. Base unit of the newton = _____________ Remark [1] Base unit of the volt = _____________ Examiner Only Marks [2] (ii) With reference to (a)(i), explain whether or not electromotive force should be considered to be a force. ___________________________________________________ _________________________________________________ [1] (b) (i) Define the potential difference. ___________________________________________________ _________________________________________________ [1] (ii) Under what condition does the potential difference across the terminals of a battery equal its electromotive force? ___________________________________________________ _________________________________________________ [1] 5514.05 R 11 [Turn over 8 A network of resistors is shown in Fig. 8.1. Examiner Only Marks Remark X 80.0 240 120 Y Fig. 8.1 (a) Calculate the total resistance between terminals X and Y. Resistance = ______ [2] (b) (i) The 80.0 resistor in the circuit has a power rating of 1.00 W. Show the maximum current that can flow through the 80.0 resistor without exceeding its power rating is 112 mA. [2] 5514.05 R 12 [Turn over (ii) Calculate the current flowing through the 120 resistor when 112 mA flows through the 80.0 resistor. Current = __________ mA 5514.05 R Examiner Only Marks Remark [3] 13 [Turn over Where appropriate in this question, you should answer in continuous prose. You will be assessed on the quality of your written communication. 9 Examiner Only Marks Remark A student carried out an experiment to investigate the relationship between current and voltage for a metallic conductor in the form of the filament of a bulb. (a) Draw a suitable circuit diagram that could be used to carry out this experiment. [3] The graph obtained by the pupil is shown in Fig 9.1. 10.0 Voltage/V 8.0 6.0 4.0 2.0 0 0 0.10 0.20 0.30 0.40 0.50 0.60 Current/A Fig 9.1 5514.05 R 14 [Turn over (b) State what happens to the resistance of the filament of the lamp as current increases and explain why this change in resistance happens. Examiner Only Marks Remark _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [3] Quality of written communication [2] (c) Take suitable readings from the graph to calculate the resistance of the filament lamp at a current of 0.50 A. Resistance = ____ 5514.05 R [2] 15 [Turn over 10 A circuit to turn on a light automatically when it gets dark is shown in Fig. 10.1. It makes use of a light dependent resistor, LDR, the resistance of which depends on the amount of light shining on it and a fixed resistor of resistance 10 k . Examiner Only Marks Remark 10 k 12 V LDR Vout Light Fig. 10.1 (a) The LDR has a resistance of 500 in bright light and 200 k when it is dark. (i) Calculate the output voltage Vout , when the LDR is in bright light. [2] (ii) The lamp connected across the output, Vout lights when Vout is greater than 10 V. Show that the lamp will light in the dark. [2] 5514.05 R 16 [Turn over (b) Describe and explain what effect swapping the positions of the LDR and the fixed resistor in the circuit would have. Examiner Only Marks Remark _______________________________________________________ _______________________________________________________ _____________________________________________________ [2] THIS IS THE END OF THE QUESTION PAPER 5514.05 R 17 [Turn over Permission to reproduce all copyright material has been applied for. In some cases, efforts to contact copyright holders may have been unsuccessful and CCEA will be happy to rectify any omissions of acknowledgement in future if notified. 1312-061-1

Formatting page ...

Top Contributors
to this ResPaper
(answers/comments)

Sean Diamond
(1)

Formatting page ...

Additional Info : Gce Physics January 2010 Assessment Unit AS 1, Module 1: Forces, Energy and Electricity - Revised
Tags : General Certificate of Education, A Level and AS Level, uk, council for the curriculum examinations and assessment, gce exam papers, gce a level and as level exam papers , gce past questions and answer, gce past question papers, ccea gce past papers, gce ccea past papers

gce chat

Horizontal lines at:
Guest Horizontal lines at:
AutoRM Data:
Box geometries: