A level Physics (7407/7408)

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1 rayton Manor High School level Physics (7407/7408) S MQ 1 Name: lass: uthor: ate: Time: Marks: omments: Page 1

2 rayton Manor High School Q1. nucleus of a particular element decays, emitting a series of α and β particles. Which of the following series of emissions would result in an isotope of the original element? 1 α and 1 β 1 α and 2 β 2 α and 1 β 2 α and 2 β Q2. battery is connected to a 10 Ω resistor and a switch in series. voltmeter is connected across the battery. When the switch is open (off) the voltmeter reads 1.45 V. When the switch is closed the reading is 1.26 V. What is the internal resistance of the battery? 0.66 Ω 0.76 Ω 1.3 Ω 1.5 Ω Q3.Electrons and protons in two beams are travelling at the same speed. The beams are diffracted by objects of the same size. Which correctly compares the de roglie wavelength λe of the electrons with the de roglie wavelength λp of the protons and the width of the diffraction patterns that are produced by these beams? comparison of de roglie wavelength diffraction pattern λe > λp electron beam width > proton beam width Page 2

3 rayton Manor High School λe < λp electron beam width > proton beam width λe > λp electron beam width < proton beam width λe < λp electron beam width < proton beam width Q4.In which of the following do both quantities have the same unit? Electrical resistivity and electrical resistance. Work function Planck constant Pressure and the Young modulus. cceleration and rate of change of momentum. Q5.The intensity of a monochromatic light source is increased. Which of the following is correct? Energy of an emitted photon Number of photons emitted per second increases increases increases unchanged unchanged increases unchanged unchanged Q6. calcium ion is formed by removing two electrons from an atom of. What is the Page 3

4 specific charge of the calcium ion? rayton Manor High School kg kg kg kg 1 Q7.Electron capture can be represented by the following equation. p + e X + Y Which row correctly identifies X and Y? X Y p K e e + n V e n π 0 Q8. resistor and diode are connected in series with a variable power supply as shown in the diagram. Page 4

5 rayton Manor High School Which best shows the characteristic for the combination of the resistor and diode? Q9.What are the numbers of hadrons, baryons and mesons in an atom of 7 3Li? hadrons baryons mesons Page 5

6 rayton Manor High School Q10. roller coaster car is raised to a height of 65 m and released from rest. What is the maximum possible speed of the car? 11 m s 1 25 m s 1 36 m s m s 1 Q11. student investigates how the potential difference V across the terminals of a cell varies with the current I in the cell. Page 6

7 rayton Manor High School Which graph correctly shows how V varies with I? Q12. potential divider circuit consists of a battery connected across a thermistor and variable resistor in series. Which of the following causes the potential difference (pd) across the thermistor to increase? increasing the temperature of the thermistor increasing the resistance of the variable resistor reducing the emf of the battery Page 7

8 rayton Manor High School adding a resistor across the variable resistor Q13.The National Grid uses high-voltage transmission lines to carry electrical power around the UK. particular transmission line delivers 800 MW of power at 132 kv to the user. It loses 1% of the transmitted power as heat. What is the resistance of the transmission line? 0.2 Ω 6 Ω 20 Ω 2000 Ω Q14. cell of negligible resistance and a switch are in series with a resistor R. The switch is moved to the on (closed) position for a time t. Which change reduces the amount of charge flowing through R in time t? add an identical cell in parallel with add an identical cell in series with add a second resistor in series with R add a second resistor in parallel with R Page 8

9 Q15.The current in a wire is 20 m. rayton Manor High School How many electrons pass a point in the wire in 2 minutes? Q16.In a test a 500 kg car travelling at 10 m s 1 hits a wall. The front 0.30 m of the car crumples as the car is brought to rest. What is the average force on the car during the impact? 830 N 7500 N 8300 N N Q17.Which of the following is correct when total internal reflection occurs? the angle of incidence is less than the critical angle the light meets an optically less dense medium the light enters a medium with a higher refractive index the angles that the incident and refracted rays make with the normal are the same Q18.What is represented by the area under a force displacement graph? rate of change of kinetic energy Page 9

10 rayton Manor High School change in momentum work done acceleration Q19.The mass of fuel in a racing car decreases during a race. s a result the lap time decreases. Which of the following could explain this decrease? there is less friction on the race track the maximum speed of the car has increased the maximum acceleration and deceleration are greater the engine is more efficient Q20.Which of the following is not a unit of power? N m s 1 J s W kg m 2 s 3 Q21. girl jogs at 2.0 m s 1 in a straight line for 30 seconds, turns around and returns to her starting point 20 seconds later. What is her average velocity and average speed? verage velocity/m s 1 verage speed/m s 1 0 m s m s 1 0 m s m s 1 Page 10

11 rayton Manor High School 1.0 m s m s m s m s 1 Q22. deep-space probe travelling forward at constant speed is briefly acted on by a force at right angles to its motion. What is the effect of this force on the forward speed and sideways speed of this probe? its forward speed increases and sideways speed increases its forward speed decreases and sideways speed increases its forward speed is unchanged and sideways speed increases its forward speed decreases and sideways speed is unchanged Q23. golf ball was hit from the surface of the Moon. The time of flight was 4.0 s. What is the best estimate for the maximum height reached by the ball? acceleration due to gravity on the Moon = 1.6 m s 2 3 m 15 m 40 m 80 m Q24.The velocity time graph for a falling object is shown. Page 11

12 rayton Manor High School Which of the following shows the corresponding acceleration time graph? Q25.Which is a scalar quantity? Page 12

13 rayton Manor High School momentum weight power moment Q26.In a diffraction-grating experiment the maxima are produced on a screen. What causes the separation of the maxima of the diffraction pattern to decrease? using light with a longer wavelength increasing the distance between the screen and grating increasing the distance between the source and grating using a grating with a greater slit separation Q27.What is the speed of light in glass of refractive index 1.42? m s m s m s m s 1 Q28.White light passes through a single narrow slit and illuminates a screen. What is observed on the screen? a set of equally spaced white fringes a central maximum made up of a spectrum surrounded Page 13

14 by white fringes rayton Manor High School a white central maximum surrounded by coloured fringes a single narrow white line Q29. proton moving with a speed ν has a de roglie wavelength λ. What is the de roglie wavelength of an alpha particle moving at the same speed ν? λ 2λ 4λ Q30.The frequency of the first harmonic of a standing wave on a wire is f. The length of the wire and tension in the wire are both doubled. What is the frequency of the first harmonic as a result? f 2f Q31.Which equation shows the process of annihilation? π + π γ Page 14

15 rayton Manor High School β + p γ γ + γ β + + β Q32.What is the phase difference between two points 0.16 m apart on a progressive sound wave of frequency 256 Hz? speed of sound = 330 m s 1 Q33.The diagram gives some of the energy levels of a hydrogen atom. The transition of an excited hydrogen atom from E3 to E1 causes a photon of visible light to be emitted. Which transition causes a photon of ultraviolet light to be emitted? E4 to E3 E3 to E2 Page 15

16 rayton Manor High School E2 to E1 E1 to E0 Q34.What is the quark structure for antiprotons? Q35.Which of the following is not made of quarks? kaon muon neutron pion Page 16

17 rayton Manor High School M1. M2. M3. M4. M5. M6. M7. M8. Page 17

18 M9. rayton Manor High School M10. M11. M12. M13. M14. M15. M16. M17. M18. M19. Page 18

19 rayton Manor High School M20. M21. M22. M23. M24. M25. M26. M27. M28. M29. M30. Page 19

20 rayton Manor High School M31. M32. M33. M34. M35. Page 20

AS PHYSICS 7407/2. Surname. Other Names. Centre Number. Candidate Number. Candidate Signature. Paper 2. Time allowed: 1 hour 30 minutes

AS PHYSICS 7407/2. Surname. Other Names. Centre Number. Candidate Number. Candidate Signature. Paper 2. Time allowed: 1 hour 30 minutes A Surname Other Names Centre Number Candidate Number Candidate Signature AS PHYSICS Paper 2 7407/2 Thursday 9 June 2016 Afternoon Time allowed: 1 hour 30 minutes For this paper you must have: a pencil