P1 Revision Cards 3.0 / 5 based on 1 rating ? PhysicsGCSEOCR Created by: FrankeCreated on: 09-06-13 10:24 Does Energy flow from a warmer to a colder body? Yes 1 of 27 When Energy flows away from a warm body what happens to the temperature of the object? It's temperature decreases 2 of 27 When the temperature of a body increases what happens to the average kinetic energy? The kinetic energy of particles increases 3 of 27 What is the formula for specific heat capacity Energy Transfered = Mass x Specific Heat Capacity x Temperature change 4 of 27 What is the formula for specific latent heat Energy Transfer = Mass x Specific Latent Heat 5 of 27 What does warm air do? Rise 6 of 27 Cavity Wall Insulation reduces energy loss by.. Conduction and convection 7 of 27 Define Conduction Energy is transferred due to the transfer of kinetic energy 8 of 27 Define Convection Energy is transferred by a gas expanding when it is heated. This means it is less dense, so it rises. The unit of density is Kg/m cubed or g/cm cubed 9 of 27 What is the formula to find density? Density = Mass/Volume 10 of 27 Define Radiation Energy Transferred by radiation does not need a material to transfer energy. Energy can be transferred through a vacuum 11 of 27 What is the Energy Efficiency Formula Efficiency = Useful Energy Output (x100%) DIVIDED BY Total Energy Input 12 of 27 What is the Payback Time Formula Payback Time = Cost Of Insulation DIVIDED BY Annual Saving 13 of 27 What is the Amplitude of a wave? Maximum displacement of a particle from its rest position 14 of 27 What is the Crest of a wave? The highest point on a wave below its rest position 15 of 27 What is the trough of a Wave? the lowest point on a wave below its rest position 16 of 27 What is the wavelength of wave? the distance between two successive points on a wave having the same displacement and moving in the same direction 17 of 27 What is the frequency of a wave? The number of complete waves passing a point in one second 18 of 27 Equation for speed of a wave? Wave speed = Frequency x Wavelength 19 of 27 Why does refraction occur? Because the speed of the waves decreases when the wave enters a denser medium and increases as the wave enters a less dense medium 20 of 27 Define Diffraction Spreading out of a wave as it passes through a gap 21 of 27 What is White light made up of? Different colours of different frequencies out of phase 22 of 27 What is a laser light? Single frequency in phase shows low divergence. 23 of 27 When light travels from one material to another it is.... Refracted 24 of 27 If the light is passing from a denser material to a less dense one the angle of refraction is.... Larger than the angle of incidence 25 of 27 When the angle of refraction is 90 degrees Celsius the angle of incidence is called... a critical angle 26 of 27 If the angle of incidence is bigger than critical angle the light is..... reflected and this is called total internal reflection 27 of 27
Comments
No comments have yet been made