AQA GCSE PHYSICS PAPER 2

AQA GCSE PHYSICS PAPER 2 GCSE Friday 14 June 2019 Morning Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a protractor • a ruler • a scientific calculator • the Physics Equations Sheet (enclosed). Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • Do all rough work in this book. Cross through any work you do not want to be marked. • In all calculations, show clearly how you work out your answer. Information • The maximum mark for this paper is 70. • The marks for questions are shown in brackets. • You are expected to use a calculator where appropriate. • You are reminded of the need for good English and clear presentation in your answers. *jun19 464p2h01* IB/M/Jun19/E12 8464/P/2H box . Determine the total time for which the velocity of the runner was increasing. [2 marks] box Time = s . Determine the deceleration of the runner. [2 marks] Deceleration = m/s2 Question 1 continues on the next page Turn over ► The smart watch and mobile phone are connected to each other by a system called Bluetooth. Bluetooth is wireless and uses electromagnetic waves for communication. . Suggest why the phone and watch being connected by a wireless system is an advantage when running. box [1 mark] . Write down the equation that links frequency, wave speed and wavelength. [1 mark] . The electromagnetic waves have a frequency of Hz The speed of electromagnetic waves is m/s Calculate the wavelength of the electromagnetic waves. [3 marks] Wavelength = m . Table 1 shows some information about four types of Bluetooth. Table 1 Type Power in milliwatts Range in metres 1 100 100 2 2.50 10.0 3 1.00 1.00 4 0.50 0.50 Mobile phones use type 2 Bluetooth to communicate with other devices. Suggest two reasons why. [2 marks] box 1 2 Turn over for the next question Turn over ► 0 2 Figure 3 shows the equipment a teacher used to determine the speed of a water wave. The equipment includes: • a ripple tank filled with water • a wooden bar that creates ripples on the surface of the water • a light source which causes a shadow of the ripples on the screen. Figure 3 . Describe how equipment in Figure 3 can be used to measure the wavelength, frequency and speed of a water wave. [6 marks] The teacher put a plastic duck in the ripple tank as shown in Figure 4. The plastic duck moved up and down as the waves in the water passed. Figure 4 . How does the movement of the plastic duck in Figure 4 demonstrate that water waves are transverse? [1 mark] Question 2 continues on the next page *07* Turn over ► . The teacher measured the maximum height and the minimum height of the plastic duck above the screen as the wave passed. The teacher repeated his measurements. Table 2 shows the teacher’s measurements. Table 2 box Maximum height in mm 509 513 511 Minimum height in mm 503 498 499 Calculate the mean amplitude of the water wave. [3 marks] *0* Some quantities are scalars and some are vectors. box . Which of the following quantities are scalars? Tick () two boxes. [2 marks] Displacement Distance Force Speed Velocity . Give the difference between a vector quantity and a scalar quantity. [1 mark] Question 3 continues on the next page Turn over ► Bumper cars are a fairground ride and are designed to bump into each other. Figure 5 shows two bumper cars moving towards each other. The momentum of each bumper car is shown by an arrow. Figure 5 0 3 . 3 Give two factors that affect the momentum of each bumper car. [2 marks] 1 2 . The bumper cars crash into each other and stop. Explain why both bumper cars stop after the crash. [4 marks] 0 4 Figure 6 shows a wire in a magnetic field. The direction of the current in the wire is shown. Figure 6 . There is a force on the wire due to the current in the magnetic field. In which direction is the force on the wire? Tick () one box. [1 mark] 0 4 . 2 Give two ways that the direction of the force on the wire could be reversed. [2 marks] 1 2 Question 4 continues on the next page Turn over ► . The length of the wire in the magnetic field is 0.050 m The force on the wire is 0.072 N magnetic flux density = 360 mT Calculate the current in the wire. Use the Physics Equations Sheet. [4 marks] box Current = A 0 4 . 4 Figure 7 shows a simple motor. Figure 7 Explain why the coil rotates when there is a current in the coil. [4 marks] Turn over for the next question Turn over ► 0 5 Figure 8 shows some springs inside a mattress. Figure 8 . Which proportionality is true when a force is applied to a spring? Tick () one box. [1 mark] Force