End of topic quiz Topic P1: Matter Instructions and answers for teachers These instructions cover the learner activity section which can be found on page 16. This end of topic quiz supports OCR GCSE (9–1) Physics A (J249), Topic P1. When distributing the activity section to the learners either as a printed copy or as a Word file you will need to remove the teacher instructions section. The Activity This lesson element is a teaching and learning resource comprised of 40 marks covering a range of question types. The quiz starts with some multiple choice questions (MCQs) and them moves on to some short answer questions and then finally on to some longer answer questions. This resource can be used to test and consolidate understanding at the end of teaching the topic or to revisit and refresh knowledge at a later point in the course. Learning Outcomes This lesson element relates to the specification learning outcomes in Topic P1: Matter. The questions in this quiz cover a range of the following topics: P1.1a describe how and why the atomic model has changed over time P1.1b describe the atom as a positively charged nucleus surrounded by negatively charged electrons, with the nuclear radius much smaller than that of the atom and with almost all of the mass in the nucleus P1.1c recall the typical size (order of magnitude) of atoms and small molecules P1.1d define density P1.1e explain the differences in density between the different states of matter in terms of the arrangements of the atoms and molecules P1.1f apply the relationship between density, mass and volume to changes where mass is conserved (M1a, M1b, M1c, M3c) . Version 1 1 © OCR 2016 P1.2a describe how mass is conserved when substances melt, freeze, evaporate, condense or sublimate P1.2b describe that these physical changes differ from chemical changes because the material recovers its original properties if the change is reversed P1.2c describe how heating a system will change the energy stored within the system and raise its temperature or produce changes of state P1.2d define the term specific heat capacity and distinguish between it and the term specific latent heat P1.2e apply the relationship between change in internal energy of a material and its mass, specific heat capacity and temperature change to calculate the energy change involved (M1a, M3c, M3d) P1.2f apply the relationship between specific latent heat and mass to calculate the energy change involved in a change of state (M1a, M3c, M3d) P1.3a explain how the motion of the molecules in a gas is related both to its temperature and its pressure P1.3b Explain the relationship between the temperature of a gas and its pressure at constant volume (qualitative only) P1.3c recall that gases can be compressed or expanded by pressure changes and that the pressure produces a net force at right angles to any surface P1.3d explain how increasing the volume in which a gas is contained, at constant temperature can lead to a decrease in pressure P1.3e explain how doing work on a gas can increase its temperature P1.3f describe a simple model of the Earth’s atmosphere and of atmospheric pressure P1.3g explain why atmospheric pressure varies with height above the surface of the planet P1.3h describe the factors which influence floating and sinking P1.3i explain why pressure in a liquid varies with depth and density and how this leads to an upwards force on a partially submerged object describe a simple model of the Earth’s atmosphere and of atmospheric pressure P1.3j calculate the differences in pressure at different depths in a liquid (M1c, M3c). Version 1 2 © OCR 2016 Topic: P1 of J249 Total marks: 40 1. At which part of the tube is there the greatest pressure due to the water? A A B B C C D D [1] Your answer D Mark scheme: Question 1 Answer Marks D Guidance 1 1 Version 1 3 © OCR 2016 2. What is the diameter of a typical atom? A 1 x 10-9 m B 10 x 10-11 m C 1 x 10-10 m D 10 x 10-10 m [1] Your answer C Mark scheme: Question 2 Answer Marks C Guidance 1 1 Version 1 4 © OCR 2016 3. Which of the following equations would you use to calculate the Specific Heat Capacity of a substance? A specific heat capacity = change in temperature ÷ (mass x change in thermal energy) B specific heat capacity = change in thermal energy ÷ (mass x change in temperature) C specific heat capacity = (mass x change in thermal energy) ÷ change in temperature D specific heat capacity = (mass x change in temperature) ÷ change in thermal energy [1] Your answer B Mark scheme: Question 3 Answer Marks Guidance 1 B 1 Version 1 5 © OCR 2016 4. Which atomic model is shown here? A Democrites B Thomson C Rutherford D Bohr [1] Your answer B Mark scheme: Question 4 Answer Marks B Guidance 1 1 Version 1 6 © OCR 2016 5. Which of the following statements are true? 1. Ice melting is a physical change. 2. Cooking a chicken is a physical change 3. Chemical changes are irreversible A 12 and3 B 1 and 2 C 2 and 3 D 1 and 3 [1] Your answer D Mark scheme: Question 5 Answer Marks D Guidance 1 1 Version 1 7 © OCR 2016 Longer answer questions: 6. (a) (i) What is the name of the particle labelled A? [1] (ii) What is the net charge of the group of particles labelled B? [1] (iii) Which of the above labelled parts contains most of the mass of the atom? [1] Mark scheme: Question 6 (a) Answer Marks (i) Electron 1 (ii) Positive 1 (iii) B / nucleus 1 Guidance 3 Version 1 8 © OCR 2016 Jeevan takes a 500 g cube of wax, with a volume of 6 x 10-4 m2. She heats it until it melts. 7. (a) Calculate the density of the solid wax? [2] (b) (i) What happens to the volume of the wax as it is heated? [1] (ii) What happens to the density of the wax as it is heated? [1] Mark scheme: Question 7 (a) Answer Marks 2 Mass is converted into kg = 0.5 kg (1) Guidance Allow one mark for an answer of 830,000 0.5 ÷ 6 x 10-4 = 830 (1) kg/m2 (b) (i) It increases. 1 (ii) It decreases 1 4 Version 1 9 © OCR 2016 8. The cube shown has a mass of 500 g. What is: (a) (i) The weight of the cube? [1] (b) (i) The SI unit pressure is measured in? [1] (ii) The largest pressure the cube can exert? [2] (iii) The smallest pressure the cube can exert? [2] Mark scheme: Question 8 Answer Marks Guidance (a) (i) 5N 1 (b) (i) Pascals, or Pa. 1 (ii) Area = 0.05 x 0.09 = 0.0045 m2 Pressure = 5 ÷ 0.0045 = 1100 Pa Area = 0.11 x 0.09 = 0.0099 m2 Pressure = 5 ÷ 0.0045 = 505 Pa 2 Answer of 0.11, or their (ai) divided by 0.0045 gains 1 mark. 2 Answer of 0.051, or their (ai) divided by 0.0099 gains 1 mark. (iii) 6 Version 1 10 © OCR 2016 9. Mohammed carries out an experiment to see how the temperature of ice changes with time, when it is left under a lamp to melt. (a) (i) On the above axes sketch the line yielded by his experiment. [2] (ii) The ice has a mass of 100g. How much energy is needed to melt it? The specific latent heat of melting for water is 334,000 J/kg. [1] (b) Describe an experiment Mohammed could carry out to find the Specific Heat Capacity of water. [4] Version 1 11 © OCR 2016 Mark scheme: Question 8 (a) (i) Answer Marks Guidance 2 A straight line with a positive gradient (1) With a portion of the line at zero gradient when temperature is 0oC (1) (ii) (b) 0.1 x 334,000 = 33,400 J 1 Place a known mass of water in a container. Heat the water using an immersion heater for a set amount of time. Measure the temperature rise of the water over this time. Use a joule meter to measure how much energy is supplied by the heater. 4 Candidate could use a voltmeter and ammeter to work out electrical energy supplied to the immersion heater. 7 Version 1 12 © OCR 2016 10. Jay pours 350 ml of water into a measuring cylinder They measure the height of the liquid using a ruler. The meniscus is 17.5 cm from the bottom of the cylinder. (a) (i) What is the pressure due to the water at the bottom of the cylinder? (Density of water is 1000 kg/m2) [2] (ii) Jay adds water so that the cylinder now contains 400 ml. What is the pressure at the bottom of the cylinder now? [2] (b) Jay places an object in the water which floats with its bottom at the 350 ml mark. Explain, in terms of pressure, why this object floats. [2] Mark scheme: Question 10 (a) (i) (ii) (b) Answer Marks Height = 0.175 m (1) Pressure = 0.175 x 1000 x 10 = 1750 Pa (1) Height = 0.2 m (1) Pressure = 0.2 x 1000 x 10 = 2000 Pa (1) There is a difference in pressure between the top and bottom of the object (1) This causes an upwards force, which matches the weight (1) 2 Guidance 2 2 Candidate could use a voltmeter and ammeter to work out electrical energy supplied to the immersion heater. 6 Version 1 13 © OCR 2016 11. Julie takes a glass jar of oxygen and places it in a water bath at room temperature. She slowly increases the temperature of the water bath to 40 °C. (a) (i) Explain in terms of particle behaviour and energy, why the pressure inside the glass jar increases. [5] (ii) Julie allows the gas to cool back down to room temperature She then allows the gas to move into a container with twice the volume. Explain what happens to the pressure exerted by the gas in terms of particle behaviour. [2] Version 1 14 © OCR 2016 Mark scheme: Question 11 (a) (i) Answer Marks As the temperature of the water increases (1) Max 5 Guidance Heat energy is transferred to the gas molecules in the form of Kinetic Energy (1) They therefore move faster (1) The time between their collisions with the glass jar decreases (1) Thus the force applied to the glass jar increases as does the pressure (1) (ii) Distance between walls is now twice as large (1) 4 So collisions happen half as often (1) Causing the force to halve (1) And therefore the pressure to halve (1) 9 This resource has been produced as part of our free GCSE teaching and learning support package. All the GCSE teaching and learning resources, including delivery guides, topic exploration packs, lesson elements and more are available on the qualification webpages. If you are looking for examination practice materials, you can find the Sample Assessment Materials (SAMs) on the qualification webpage: Physics A (9–1). We’d like to know your view on the resources we produce. By clicking on ‘Like’ or ‘Dislike’ you can help us to ensure that our resources work for you. When the email template pops up please add additional comments if you wish and then just click ‘Send’. Thank you. If you do not currently offer this OCR qualification but would like to do so, please complete the Expression of Interest Form which can be found here: www.ocr.org.uk/expression-of-interest OCR Resources: the small print OCR’s resources are provided to support the teaching of OCR specifications, but in no way constitute an endorsed teaching method that is required by the Board, and the decision to use them lies with the individual teacher. Whilst every effort is made to ensure the accuracy of the content, OCR cannot be held responsible for any errors or omissions within these resources. © OCR 2016 - This resource may be freely copied and distributed, as long as the OCR logo and this message remain intact and OCR is acknowledged as the originator of this work. OCR acknowledges the use of the following content: Page 6/18: Atom – Yaruna/Shutterstock.com, Page 7/20: Atom – Oorka/Shutterstock.com, Page 14/25 – Glass jar – TigerForce/Shutterstock.com Please get in touch if you want to discuss the accessibility of resources we offer to support delivery of our qualifications: resources.feedback@ocr.org.uk Version 1 15 © OCR 2016 End of topic quiz Topic P1: Matter Learner Activity Topic: P1 of J249 Total marks: 40 1. At which part of the tube is there the greatest pressure due to the water? A A B B C C D D [1] Your answer Version 1 16 © OCR 2016 2. What is the diameter of a typical atom? A 1 x 10-9 m B 10 x 10-11 m C 1 x 10-10 m D 10 x 10-10 m [1] Your answer 3. Which of the following equations would you use to calculate the Specific Heat Capacity of a substance? A specific heat capacity = change in temperature ÷ (mass x change in thermal energy) B specific heat capacity = change in thermal energy ÷ (mass x change in temperature) C specific heat capacity = (mass x change in thermal energy) ÷ change in temperature D specific heat capacity = (mass x change in temperature) ÷ change in thermal energy [1] Your answer Version 1 17 © OCR 2016 4. Which atomic model is shown here? A Democrites B Thomson C Rutherford D Bohr [1] Your answer Version 1 18 © OCR 2016 5. Which of the following statements are true? 1. Ice melting is a physical change. 2. Cooking a chicken is a physical change 3. Chemical changes are irreversible A 12 and3 B 1 and 2 C 2 and 3 D 1 and 3 [1] Your answer Version 1 19 © OCR 2016 Longer answer questions: 6. (a) (i) What is the name of the particle labelled A? [1] (ii) What is the net charge of the group of particles labelled B? [1] (iii) Which of the above labelled parts contains most of the mass of the atom? [1] Version 1 20 © OCR 2016 7. Jeevan takes a 500 g cube of wax, with a volume of 6 x 10-4 m2. She heats it until it melts. (a) Calculate the density of the solid wax? [2] (b) (i) What happens to the volume of the wax as it is heated? (ii) What happens to the density of the wax as it is heated? [1] [1] Version 1 21 © OCR 2016 8. The cube shown has a mass of 500g. What is: (a) (i) The weight of the cube? [1] (b) (i) The SI unit pressure is measured in? [1] (ii) The largest pressure the cube can exert? [2] (iii) The smallest pressure the cube can exert? [2] Version 1 22 © OCR 2016 9. Mohammed carries out an experiment to see how the temperature of ice changes with time, when it is left under a lamp to melt. (a) (i) On the above axes sketch the line yielded by his experiment. [2] (ii) The ice has a mass of 100g. How much energy is needed to melt it? The specific latent heat of melting for water is 334,000 J/kg. [1] (b) Describe an experiment Mohammed could carry out to find the Specific Heat Capacity of water. [1] Version 1 23 © OCR 2016 10. Jay pours 350 ml of water into a measuring cylinder They measure the height of the liquid using a ruler. The meniscus is 17.5 cm from the bottom of the cylinder. (a) (i) What is the pressure due to the water at the bottom of the cylinder? (Density of water is 1000 kg/m2) [2] (ii) Jay adds water so that the cylinder now contains 400 ml. What is the pressure at the bottom of the cylinder now? [2] (b) Jay places an object in the water which floats with its bottom at the 350 ml mark. Explain, in terms of pressure, why this object floats. [2] Version 1 24 © OCR 2016 11. Julie takes a glass jar of oxygen and places it in a water bath at room temperature. She slowly increases the temperature of the water bath to 40 °C. (a) (i) Explain in terms of particle behaviour and energy, why the pressure inside the glass jar increases. [5] (ii) Julie allows the gas to cool back down to room temperature She then allows the gas to move into a container with twice the volume. Explain what happens to the pressure exerted by the gas in terms of particle behaviour. [2] Version 1 25 © OCR 2016