A level Physics Question paper Paper 1 June 2017

A Level Physics Question Paper Paper 1 June 2017-Free PDF

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Do not write,2 outside the,Answer all questions in this section. 0 1 An isotope of potassium 40, 19K is used to date rocks The isotope decays into an. isotope of argon Ar mainly by electron capture,0 1 1 The decay is represented by this equation. Complete the equation to show the decay by filling in the gaps. 0 1 2 Explain which fundamental interaction is responsible for the decay in. question 01 1, 0 1 3 One decay mechanism for the decay of 4019K results in the argon nucleus having an. excess energy of 1 46 MeV It loses this energy by emitting a single gamma. Calculate the wavelength of the photon released by the argon nucleus. wavelength m,IB M Jun17 7408 1,Do not write,3 outside the.
0 1 4 The potassium isotope can also decay by a second decay process to form a. calcium 40 nuclide 40, Suggest how the emissions from a nucleus of decaying potassium can be used to. confirm which decay process is occurring,Turn over for the next question. IB M Jun17 7408 1,Do not write,4 outside the, 0 2 Figure 1 shows an arrangement used by a student to investigate vibrations in a. stretched nylon string of fixed length l He measures how the frequency f of. first harmonic vibrations for the string varies with the mass m suspended from it. Table 1 shows the results of the experiment, 0 2 1 Show that the data in Table 1 are consistent with the relationship. where T is the tension in the nylon string,IB M Jun17 7408 1.
Do not write,5 outside the, 0 2 2 The nylon string used has a density of 1150 kg m 3 and a uniform diameter of. 5 0 10 4 m,Determine the length l of the string used. 0 2 3 The student uses the relationship in question 02 1 to predict frequencies for. tensions that are much larger than those used in the original experiment. Explain how the actual frequencies produced would be different from those that. the student predicts,IB M Jun17 7408 1,Do not write. 6 outside the, 0 3 Figure 2 shows a ray of monochromatic green light incident normally on the. curved surface of a semicircular glass block, 0 3 1 The angle of refraction of the ray at the plane surface is 90.
Refractive index of the glass used 1 6, Calculate the angle of incidence of the ray on the flat surface of the block. angle of incidence degrees,IB M Jun17 7408 1,Do not write. 7 outside the, 0 3 2 A thin film of liquid is placed on the flat surface of the glass block as shown in. The angle of incidence is changed so that the angle of refraction of the green light. ray at the glass liquid interface is again 90 The angle of incidence is now 58. Calculate the refractive index of the liquid,refractive index. 0 3 3 The source of green light is changed for one that contains only red and blue light. For any material red light has a lower refractive index than green light and blue. light has a higher refractive index than green light The angle of incidence at the. glass liquid interface remains at 58, Describe and explain the paths followed by the red and blue rays immediately after.
the light is incident on the glass liquid interface. IB M Jun17 7408 1,Do not write,8 outside the,There are no questions printed on this page. DO NOT WRITE ON THIS PAGE,ANSWER IN THE SPACES PROVIDED. IB M Jun17 7408 1,Do not write,9 outside the, 0 4 An engineer wants to use solar cells to provide energy for a filament lamp in a. The engineer first investigates the emf and internal resistance of a solar cell under. typical operating conditions, The engineer determines how the potential difference across the solar cell varies. with current The results are shown in the graph in Figure 4. The engineer uses the graph to deduce that when operating in typical conditions. a single solar cell produces an emf of 0 70 V and has an internal resistance of. 0 4 1 Explain how the engineer uses the graph to obtain the values for the emf and. internal resistance of the solar cell,Question 4 continues on the next page.
IB M Jun17 7408 1,Do not write,10 outside the, To operate effectively the lamp in the road sign needs a minimum current of. 75 mA At this current the resistance of the filament lamp is 6 0. The engineer proposes to try the two circuits shown in Figure 5 and Figure 6. IB M Jun17 7408 1,Do not write,11 outside the, 0 4 2 Deduce using calculations whether the circuits in Figure 5 and Figure 6 are. suitable for this application, 0 4 3 Solar cells convert solar energy to useful electrical energy in the road sign with an. efficiency of 4 0, The solar cell supply used by the engineer has a total surface area of 32 cm. Calculate the minimum intensity in W m 2 of the sunlight needed to provide the. minimum current of 75 mA to the road sign when it has a resistance of 6 0. intensity W m 2 9,IB M Jun17 7408 1,Do not write,12 outside the.
0 5 Figure 7 shows two of the forces acting on a uniform ladder resting against a. vertical wall The ladder is at an angle of 60 to the ground. 0 5 1 Explain how Figure 7 shows that the friction between the ladder and the wall is. negligible, 0 5 2 The forces acting on the ladder are in equilibrium. Draw an arrow on Figure 7 to show the direction of the resultant force from the. ground acting on the ladder Label your arrow G,IB M Jun17 7408 1. Do not write,13 outside the,0 5 3 The ladder is 8 0 m long and weighs 390 N. Calculate the magnitude of the resultant force from the wall on the ladder. resultant force N, 0 5 4 Suggest the changes to the forces acting on the ladder that occur when someone. climbs the ladder,IB M Jun17 7408 1,Do not write,14 outside the.
0 6 Figure 8 shows a model of a system being designed to move concrete building. blocks from an upper to a lower level, The model consists of two identical trolleys of mass M on a ramp which is at 35 to. the horizontal The trolleys are connected by a wire that passes around a pulley of. negligible mass at the top of the ramp, Two concrete blocks each of mass m are loaded onto trolley A at the top of the. ramp The trolley is released and accelerates to the bottom of the ramp where it is. stopped by a flexible buffer The blocks are unloaded from trolley A and two. blocks are loaded onto trolley B that is now at the top of the ramp The trolleys are. released and the process is repeated, Figure 9 shows the side view of trolley A when it is moving down the ramp. IB M Jun17 7408 1,Do not write,15 outside the, 0 6 1 The tension in the wire when the trolleys are moving is T. Draw and label arrows on Figure 9 to represent the magnitudes and directions of. any forces and components of forces that act on trolley A parallel to the ramp as it. travels down the ramp, 0 6 2 Assume that no friction acts at the axle of the pulley or at the axles of the trolleys.
and that air resistance is negligible, Show that the acceleration a of trolley B along the ramp is given by. 0 6 3 Compare the momentum of loaded trolley A as it moves downwards with the. momentum of loaded trolley B,Question 6 continues on the next page. A level Physics Question paper Paper 1 June 2017 Author AQA Subject A level Physics Keywords A level Physics 7408 74081 A level 2017 Question paper Created Date 20180307114338Z

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