Physics AQA PAPER 2 FINAL EXAM 1 0.0 / 5 ? PhysicsForcesGCSEAQA Created by: IJM22Created on: 08-06-19 16:46 What does it mean if there is greater force? Then there is a greater acceleration 1 of 26 What does it mean if the mass is larger? The acceleration will be smaller 2 of 26 What is the equation to calculate the force need to accelerate an object? Force (N) = Mass (kg) × Acceleration (m/s2) 3 of 26 Calculate the force needed to accelerate an object with a mass of 5 kg by 4 m/s2 1. Force (N) = Mass (kg) × Acceleration (m/s2) 2. Force = 5 kg × 4 m/s2 = 20 N 4 of 26 Give an example of transverse waves? Ripples on the surface of water 5 of 26 Give an example of lonitudinal waves? Sound waves 6 of 26 What are the two types of waves? Transverse and longitudinal waves 7 of 26 What is a key factor about waves? All waves transfer energy from one place to another 8 of 26 What do ripples transfer? Kinetic energy 9 of 26 What do sound waves transfer? Sound energy 10 of 26 Define amplitude? The furthest point the wave vibrates from the undisturbed position 11 of 26 Define wavelength? The distance from a point on one wave to the equivalent point on the adjacent wave 12 of 26 Define frequency? Number of waves passing a point each second 13 of 26 What is the unit of frequency? Hertz 14 of 26 What does 1 Hz equal to? 1 wave per second 15 of 26 Define period ? The time in seconds for one wave to pass a point 16 of 26 What is the equation to work out period? Period = 1/frequency/(Hz) 17 of 26 Equation for wave speed? V (wave speed m/s) = f (frequency Hz) × λ (m) 18 of 26 A wave has a frequency of 165 Hz and a wavelength of 2m. Calculate the speed of the wave 1. V ( m/s) = f Hz) × λ (m) 2. V = 165 × 2 = 330m/s 19 of 26 Name an example of an electromagnetic wave? Light 20 of 26 What are electromagnetic waves? They are transverse waves - they transfer energy from the source of the waves to an absorber 21 of 26 Why is a microwave a good example of an electromagnetic wave? As it transfers energy from the source (the oven) to the absorber (food) 22 of 26 Why are light waves a good example of an electromagnetic wave? As light waves transfer energy from the source (the Sun) to the absorber (solar pannels on the spacecraft) 23 of 26 What happens if you pass white light through a prism? It splits into a spectrum 24 of 26 On the red end of the spectrum, what frequency and wavelength does it have? A lower frequency and a longer wavelength 25 of 26 On the violet end of the spectrum, what frequency and wavelength does it have? The waves have a higher frequency and a shorter wavelength 26 of 26
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