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Physics KS4-5 Transition Holiday Work To ensure you are fully equipped and have the commitment needed to be successful following the AS physics course you are required to complete the following assignment and hand it in on your first timetabled physics lesson. Your understanding of the research work will be formally assessed using past examination questions within the first fortnight. Your continued place on the course depends on the outcome of this assignment and subsequent assessment. You need to complete all the tasks on this document and the vectors assignment pdf document. Resources Below are useful websites and textbooks you may find useful http://www.physics-online.com/ http://www.s-cool.co.uk/alevel/physics.html Books You are not expected to purchase textbooks in order to complete this work, your local library will be able to order these books in order for you to refer to if necessary. Edexcel Physics for AS, M. Benn & G. George, Hodder Education Edexcel AS Physics, M. Hudson & P. Fullick, Pearson This assignment require you to research and read the following Base quantities, S.I. units and Derived units Trigonometry and vectors DC electricity Be able to calculate power, resistance, charge, efficiency etc Voltage and current characteristics in series and parallel Combining resistors in series and parallel Base Units and Derived Units http://www.s-cool.co.uk/alevel/physics/units-quantities-and-measurements.html For quantities in bold you will need to refer to your GCSE notes and use the GCSE formulae to help you answer the question. Marks for each question are in brackets. 1. What are the units of the following quantities (2) a) Length ______________________________________________ b) Time ______________________________________________ c) Mass ______________________________________________ d) Force ______________________________________________ e) Temperature ______________________________________________ f) Acceleration ______________________________________________ 2. Which of the above quantities are not a base unit? (1) ______________________________________________________________ 3. What are the units for weight in terms of base units? Show your working(2) ______________________________________________________________ ______________________________________________________________ 4. What are the units of power in terms of base units? (2) ______________________________________________________________ ______________________________________________________________ 5. What are the units of energy in terms of base units? (2) ______________________________________________________________ ______________________________________________________________ 6. Show that the units for g, the acceleration due to gravity, can be written as N / kg (2) ______________________________________________________________ ______________________________________________________________ 7. Rearrange the equation for kinetic energy in terms of velocity (1) ______________________________________________________________ ______________________________________________________________ 8. Rearrange the ideal gas equation in terms of T2 (P1V1/T1 = P2V2/T2) (1) ______________________________________________________________ ______________________________________________________________ 9. The following quantities all relate to distance a = 9.851 m b = 1.02 x 106 m c = 3 mm d = 4.5 km Calculate the following in metres and write your answers to 3 significant figures. i) a + b + c + d (1) ______________________________________________________________ ii) b x c x d ______________________________________________________________ (1) DC Electricity Complete the table for each quantity the units, definition and equation to calculate the quantity are needed. Quantity (symbol) Units (symbol) Definition Equation/s Current Charge Voltage Resistance Power Work/ Energy Electromotive Force W=VQ 1. a) Calculate the combined resistance of the two resistors in parallel (3) ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... b) Calculate the total resistance of the circuit (2) ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... c) Calculate the current flowing through the 2 ohm resistor (3) ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... d) Calculate the power provided by the cell (3) ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... e) What form of energy is electrical energy converted to in the resistor (1) ……………………………………………………………………………………………….. 2. The following diagram shows the electric circuit of a torch 10.5 V 9.0 V The current across the cell is 2.0A. a) What is the resistance of the bulb? ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... b) What is the power of the cell? ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... c) At what rate is electrical energy converted to light energy in the bulb? ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... d) What is the efficiency of the circuit? ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... e) The torch is to be modified so that it gives a brighter beam. This is to be done by adding a second bulb identical to the first. What would the new output power be if this second bulb was added in series? ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... f) What would be the output power if the second bulb was added in parallel? ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... g) Would you recommend adding the second bulb in series or parallel? Explain why ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... h) Explain why the temperature of the filament increases when the torch is switched on. (refer to resistance, atoms and electrons in your answer) ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... You now need to complete the vectors
