AQA PHYSICS

AQA-7408-3BE-PHYSICS QUESTION PAPER 3 SECTION B:Electronics-A LEVEL-17Jun24-AM Section B box Answer all questions in this section. 0 1 A toy manufacturer is designing a two-tone siren for use in small battery-operated cars. Figure 1 shows design Option 1. Option 1 uses three separate signal generators feeding into a logic sub-system. The signal generators produce logic-compatible 9 V square waves of frequencies 1024 Hz, 1 Hz and 512 Hz. Figure 1 The waveforms shown are not to...

AQA-7408-3BD-PHYSICS QUESTION PAPER 3 SECTION B:Turning points in physics-A LEVEL-17Jun24-AM. Section B box Answer all questions in this section. 0 1 . 1 Figure 1 shows apparatus used in an experiment to measure the specific charge of the electron. Figure 1 Electrons are accelerated by the potential difference VA. The electrons then enter the region between two parallel metal plates, shown shaded in Figure 1. The parallel metal plates are separated by a distance d with a potentia...

AQA-7408-3BC-PHYSICS QUESTION PAPER 3 SECTION B:Engineering physics-A LEVEL-17Jun24-AM. 3 *03* Turn over ► IB/M/Jun24/7408/3BC Do not write outside the Section B box Answer all questions in this section. 0 1 A heavy turntable is mounted on a fixed base. The turntable can rotate freely on a low-friction bearing. 0 1 . 1 Figure 1 shows a propeller unit fixed to the centre of the turntable. The propeller unit consists of a motor-driven propeller and a battery. The propeller...

AQA-7408-3BB-PHYSICS QUESTION PAPER 3 SECTION B:Medical physics-A LEVEL-17Jun24-AM. Section B box Answer all questions in this section. 0 1 . 1 A human eye has a far point of 6.0 m. State the name of this defect of vision. [1 mark] 0 1 . 2 Calculate the power of the correcting lens required for this eye. [2 marks] power = D 0 1 . 3 An eye with astigmatism requires the following prescription: −4.00 –0.75 ×30 Which row identifies the meaning of each number? Tick () one bo...

AQA-7408-3BA-PHYSICS QUESTION PAPER 3 SECTION B:Astrophysics-A LEVEL-17Jun24-AM. Section B box Answer all questions in this section. 0 1 A student uses a refracting telescope in normal adjustment to make observations of Jupiter. The telescope has an angular magnification of 75 0 1 . 1 The eyepiece has a focal length of 22 mm. Determine the distance between the eyepiece and the objective lens. 0 1 . 2 When viewed through the telescope, the image of Jupiter subtends an angle of 1.7 × ...

AQA-7408-3A-PHYSICS QUESTION PAPER 3 SECTION A-A LEVEL-17Jun24-AM. Section A box Answer all questions in this section. 0 1 This question is based on a method to determine the resistivity of a wire (required practical activity 5). Figure 1 shows a micrometer screw gauge 0 1 box . 1 State, in mm, the resolution of the main scale. [1 mark] resolution = mm 0 1 . 2 What is the reading on the micrometer? Tick () one box. [1 mark] 6.22 mm 6.72 mm 6.78 mm 8.22 mm 0 1 . 3 A wire X is...

AQA-7408-2-PHYSICS QUESTION PAPER 2-A LEVEL-6Jun24-AM. Section A box Answer all questions in this section. 0 1 A room contains dry air at a temperature of 20.0 °C and a pressure of 105 kPa. 0 1 . 1 Show that the amount of air in each cubic metre is about 40 mol. [1 mark] 0 1 . 2 The density of the dry air is 1.25 kg m−3 . Calculate crms for the air molecules. Give your answer to an appropriate number of significant figures. [3 marks] crms = m s−1 0 1 . 3 Calculate...

AQA-7408-1-PHYSICS QUESTION PAPER 1-A LEVEL-24May24-AM. Section A box Answer all questions in this section. 0 1 . 1 State the names of the four fundamental interactions. [1 mark] 1 2 3 4 0 1 . 2 State the products of the decay of a free neutron. [1 mark] 0 1 . 3 Explain which of the fundamental interactions is responsible for the decay of the neutron. [2 marks] 0 1 . 4 The forces between two moving electrons cause their paths to change. Explain, using the concept of exchang...

AQA-7407-2-PHYSICS QUESTION PAPER 2-AS LEVEL-22May24-PM. Section A box Answer all questions in this section. 0 1 A hacksaw blade is a thin flexible strip of metal. Figure 1 shows a blade clamped between two blocks above a horizontal bench. A pen is attached to the free end of the blade. The free end of the blade is displaced and released. The blade oscillates in a horizontal plane as shown in Figure 2. Figure 2 The time for each oscillation is T 0 1 box . 1 Table 1 shows repeated me...

AQA-7407-1-PHYSICS QUESTION PAPER 1-AS LEVEL-15May24-AM. 2 *02* IB/M/Jun24/7407/1 Do not write outside the Answer all questions in the spaces provided. box 0 1 An electron neutrino interacts with a chlorine-37 nucleus to produce an argon-37 nucleus and an electron. The interaction is represented by the equation: e 37 37 Cl Ar e 17 18 v +→ + 0 1 . 1 Explain, with reference to appropriate conservation laws, why the electron is emitted in this interaction. [2 marks] 0 1 . 2...