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

UK GCSE 2007 : Physics Foundation Tier, Paper 2

20 pages, 53 questions, 0 questions with responses, 0 total responses,

	ccea_gcse	+Fave Message
	Profile Timeline Uploads Q & A

Home > ccea_gcse >

Formatting page ...

Centre Number 71 Candidate Number General Certificate of Secondary Education 2007 Paper 2 Foundation Tier G7603 Science: Physics [G7603] WEDNESDAY 20 JUNE, MORNING TIME 1 hour 15 minutes. INSTRUCTIONS TO CANDIDATES Write your Centre Number and Candidate Number in the spaces provided at the top of this page. Write your answers in the spaces provided in this question paper. Answer all five questions. INFORMATION FOR CANDIDATES The total mark for this paper is 100. Quality of written communication will be assessed in Question 2(d)(i). Figures in brackets printed down the right-hand side of pages indicate the marks awarded to each question or part question. Details of calculations should be shown. Units must be stated with numerical answers where appropriate. For Examiner s use only Question Number 1 2 3 4 5 Total Marks G762F7 2327 Marks 1 (a) The diagram below shows a hovercraft of mass 8 tonnes. The hovercraft is stationary and is floating on a cushion of air at a constant height above the surface of the sea. Examiner Only Marks Remark Upward force from air cushion Weight (i) Calculate the weight of the hovercraft. Take 1 tonne as 1000 kg. You are advised to show clearly how you get your answer. Weight = _____________ N [2] (ii) Explain carefully, why the size of the upward force on the hovercraft, from the cushion of air, must be exactly the same size as its weight. ______________________________________________________ ____________________________________________________ [2] G762F7 2327 2 [Turn over When the thrust from the hovercraft s engines increases to 2000 N, the hovercraft moves forward at a constant speed of 2 m/s. (iii) Mark on the diagram the direction of the fourth force on the hovercraft. Examiner Only Marks Remark [1] Upward force from air cushion Thrust from the engines Weight (iv) What name is given to this force? ____________________________________________________ [1] (v) What size is this force? Force = _____________ N [1] (b) Tick ( ) the appropriate boxes in the table below to show the quantities which have direction and those which do not. Quantity has direction Quantity does not have direction Distance Velocity Displacement Speed [2] G762F7 2327 3 [Turn over (c) A bullet, fired vertically from a pistol, rises to a maximum height of 1875 m above a planet in a time of 25 seconds. Examiner Only Marks Remark (i) Calculate the average speed of the bullet during this time. You are advised to show clearly how you get your answer. Average speed = _____________ m/s [3] The bullet then takes another 25 seconds to fall back to the planet s surface. (ii) What is the displacement of the bullet following the 50 seconds of its motion? Displacement = _____________ m [1] (d) An important law of physics is that the extension of a spiral (helical) spring is directly proportional to the applied force, but only up to a certain limit. (i) By what name is this law commonly known? __________________________ law [1] (ii) What name is usually given to the limit referred to in the law? __________________________ limit [1] G762F7 2327 4 [Turn over The table below shows the total length of a spring when different loads are applied. The loads are small so that the spring is not permanently deformed. Load in N 12 5 Remark Total length in cm 2 Examiner Only Marks 18 (iii) What extension is produced in the spring by a force of 1 N? You are advised to show clearly how you get your answer. Extension = _____________ cm [2] (iv) Calculate the original (unextended) length of the spring. You are advised to show clearly how you get your answer. Original (unextended) length = _____________ cm [3] G762F7 2327 5 [Turn over 2 (a) Solids, liquids and gases expand when heated through the same temperature rise. Arrange them in order of which one expands most to which expands least, when heated through the same rise in temperature. Examiner Only Marks Remark Expands most __________________________ __________________________ Expands least __________________________ [3] The diagram below shows a bimetal strip at room temperature and the same strip after some time in a freezer. Room temperature 20 C Freezer temperature 20 C (b) Why does the strip bend in the way shown? _________________________________________________________ _________________________________________________________ _______________________________________________________ [3] (c) Name three different methods of heat transfer. 1. __________________________ 2. __________________________ 3. __________________________ G762F7 2327 [3] 6 [Turn over (d) Jane carried out the following experiment using two copper cylinders, identical in shape and size, each with the same sized hole drilled along its axis. She placed a thermometer in each of the holes. Each cylinder had a different surface as shown in the diagram below. Thermometer Bunsen flame Copper cylinder with a shiny surface Copper cylinder with a black surface A lit Bunsen burner was placed between the cylinders equidistant from them and readings taken on both thermometers at one-minute intervals. Examiner Only Marks Remark (i) After a time, the two thermometers showed different readings. Explain fully why this happened, indicating which thermometer showed the higher temperature. _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ __________________________________________________ [4] Quality of written communication G762F7 2327 [2] 7 [Turn over (ii) Use the results of this experiment to explain why aluminium foil is sometimes spread over the surface of a meal cooking in an oven. Examiner Only Marks Remark _____________________________________________________ _____________________________________________________ ___________________________________________________ [3] (e) (i) Write down the equation used to calculate the efficiency of a machine. [2] (ii) State the Principle of Conservation of Energy. _____________________________________________________ ___________________________________________________ [2] (iii) The efficiency of a machine is always less than 1. What does this mean? _____________________________________________________ ___________________________________________________ [1] (iv) Even though the efficiency of a machine is always less than 1, why is the Principle of Conservation of Energy still obeyed? _____________________________________________________ ___________________________________________________ [2] G762F7 2327 8 [Turn over 3 (a) The sound waves produced by a vibrating tuning fork can be studied using a microphone connected to an oscilloscope (C.R.O.) as shown below. Examiner Only Marks Remark C.R.O. Tuning fork Microphone The diagram below shows the waveform seen on the screen of the oscilloscope when the tuning fork is made to vibrate. (i) How many complete vibrations of the tuning fork are represented by this waveform? _____________ [1] (ii) 100 complete vibrations of the tuning fork are produced every 0.5 seconds. Calculate the frequency of the sound waves produced by the tuning fork. Remember to include the correct unit in your answer You are advised to show clearly how you get your answer. Frequency = _____________ [2] G762F7 2327 9 [Turn over (iii) The speed of sound is 340 m/s. Using your answer to part (ii), calculate the wavelength of the sound emitted by the tuning fork. You are advised to show clearly how you get your answer. Examiner Only Marks Remark Wavelength = ___________ m [3] (iv) The same tuning fork is struck so that the sound produced is less loud than before. On the grid below sketch the pattern that would be seen with this less loud sound. The pattern produced the first time is shown. [2] (b) The sound waves travel through the air as longitudinal waves. The diagram below shows an air molecule. (i) Mark on the diagram the directions in which the molecule moves when a sound wave reaches it. The direction of the sound wave is shown by the arrow. Air molecule Direction of the sound wave [1] G762F7 2327 10 [Turn over (ii) Name two properties that sound waves and ultrasound waves have in common. Examiner Only Marks Remark 1. ___________________________________________________ 2. _________________________________________________ [2] (iii) State the range of sound frequencies that humans can hear. _____________ [1] (iv) How is this range affected as we grow older? ___________________________________________________ [1] One use of sound waves is known as sonar. This is used to detect underwater objects such as submarines. (v) Describe how the ship shown above uses sonar to detect the submarine. State the measurement that needs to be taken by the apparatus, the property of the sound that must be known and the equation that the apparatus uses to calculate the distance to the submarine. _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ ___________________________________________________ [5] G762F7 2327 11 [Turn over (c) The diagram shows sound waves approaching an open doorway. By drawing the shape of the sound waves, after they pass through the doorway, explain with the help of the diagram how a person standing at the point X can hear the sound. What is this process called? Examiner Only Marks Remark Sound waves X _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] G762F7 2327 12 [Turn over 4 (a) Siobhan made an electromagnet for her younger brother to play with. It consisted of a length of wire coiled around a cardboard tube. An iron nail was placed in the centre of the cardboard tube, as shown in the diagram below. Examiner Only Marks Remark Battery Nail Cardboard tube (i) State two advantages of an electromagnet over a permanent magnet. 1. ___________________________________________________ 2. _________________________________________________ [2] (ii) What is the importance of the iron nail in making a good electromagnet? ___________________________________________________ [1] (iii) Siobhan s brother wants a stronger magnet than the one she has made. State two ways in which she can make the electromagnet stronger. 1. ___________________________________________________ 2. _________________________________________________ [2] (iv) State, with reasons, whether or if the electromagnet would work better or less well if a steel rod replaced the iron nail. _____________________________________________________ _____________________________________________________ ___________________________________________________ [3] G762F7 2327 13 [Turn over (b) The diagram below represents a simple electromagnetic relay along with its two electric circuits. D Water pump Contacts Iron armature Circuit B S Circuit A Soft iron core Examiner Only Marks Remark (i) Describe what happens, in circuit A, in the relay and in circuit B, when the switch S is closed. _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ ___________________________________________________ [5] (ii) What type of material should part D be made of ? __________________________ [1] (iii) Explain why this type of material is essential for part D. _____________________________________________________ ___________________________________________________ [1] G762F7 2327 14 [Turn over (c) The apparatus shown below can be used to investigate the movement of a length of copper wire in a magnetic field. Examiner Only Marks Remark Copper wire Switch Magnet Battery Horizontal copper rods (i) What must be done to the circuit above to cause the wire to move along the horizontal copper rods? Explain your answer. _____________________________________________________ _____________________________________________________ ___________________________________________________ [3] (ii) State two changes that could be made to cause the wire to move in the opposite direction. _____________________________________________________ ___________________________________________________ [2] G762F7 2327 15 [Turn over 5 (a) The diagram shows the Earth. Its axis of rotation is marked. Light from the Sun falls on the Earth from the direction shown. Examiner Only Marks Remark Equator Sunlight Axis of rotation (i) On the diagram, shade the part of the Earth in night. Mark clearly the boundary between day and night. [2] (ii) What movement of the Earth causes day and night? ___________________________________________________ [1] (iii) Mark, with an X, a place on the Earth which will always have equal periods of day and night. [1] (iv) The diagram below shows the path the Sun takes across the sky in Northern Ireland on a day in the middle of winter. On the diagram, mark the path the Sun would take on a day in the middle of summer. [2] G762F7 2327 16 [Turn over (b) Today we know that the Earth and all the planets orbit the Sun. Examiner Only Marks Remark (i) Four hundred years ago the model of our solar system was known as the geocentric model. State the main difference between that model and what we know today. _____________________________________________________ ___________________________________________________ [1] Apart from the planets in our solar system, astronomers have detected planets orbiting other stars. (ii) Apart from orbiting a star, state one other difference between a star and a planet. ___________________________________________________ [1] (iii) Over 100 such planets have been discovered. However, all are many light years from the Earth. What is a light year? _____________________________________________________ ___________________________________________________ [1] (iv) Travel to such planets in a human lifetime is not possible. How might scientists, on the Earth, detect that a civilisation similar to our own exists on distant planets? _____________________________________________________ _____________________________________________________ ___________________________________________________ [1] G762F7 2327 17 [Turn over (v) Here is a photograph of the planet Earth as it rises above the horizon of an object in the solar system. From what object in the solar system was it taken? Examiner Only Marks Remark __________________________ [1] (c) (i) What are very large collections of stars known as? __________________________ [1] (ii) What is the name for the collection of stars our Sun is part of? __________________________ [1] (iii) Star formation is happening all the time. What do astronomers believe stars are formed from? __________________________ [1] (iv) What is the name of the process that is the source of a star s energy? __________________________ [1] THIS IS THE END OF THE QUESTION PAPER G762F7 2327 18 [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. S 2/06 7-014-1 [Turn over

Formatting page ...

Tags : united kingdom (ccea - gcse), council for the curriculum, examinations and assessment - general certificate of secondary education, gcse past papers, gcse question papers, gcse exam, gcse old exam papers, gcse exam boards, gcse practice question papers.

ccea_gcse chat

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