Physics paper 1 2023

4.2 - correct answer 5.3 - correct answer 5.8 - correct answer 6.2 - correct answer 6.3 - correct answer 6.4 - correct answer 7.3 - correct answer 8.4 - correct answerC 8.5 - correct answer Air particles in the tyre move more..... - correct answerRandom Baby bouncer should not be used with baby's over 12kg why? - correct answerThe spring may lose its elasticity if too much force is applied Calculate the charge flow? - correct answerDivide the num given Calculate the resistance - correct answerP= I^2R work out calc Calculate the useful energy output from this power station? - correct answerX both num together Compare the structure of an atom of carbon 14 with structure of an atom of Carbon 12? - correct answer. Carbon 14 will have 2 more neutrons in its nucleus than carbon 12 . Both will contain same num of protons and electrons . As they are isotopes Describe a method the student can use to represent how the current varies ina filament lamp varies with potential diff? - correct answer. Set up the circuit shown above . Use the variable resistor to vary current through the circuit and p.d across . Use the ammeter to measure current and voltmeter to measure the potential diff . Record measurement in a table . Swap over wires connected to battery to reverse the direction of the current and get negative readings . Use measurements to draw a graph of current against p.d . The graph should be curved . So as current increases, temp increases, resistance increases . Creates a curve like pattern Describe the difference between irradiation and contamination? - correct answer. Irradiation= when a person is exposed to harmful radiation . Contamination = when a person has unwanted presence of radioactive material Describe the energy transfers as the baby moves from position A to B? - correct answer. At position A the baby has gravitational potential energy . As the spring stretches due to the baby's weight . Gravitational potential is converted into kinetic energy . At position B the baby is stationary . Kinetic energy has been converted into elastic potential energy Each particle which year it was discovered? - correct answerElectron = 1897 Neutron = 1932 Proton = 1920 Nucleus = 1911 Explain how an electron can move up and down between energy levels in a atom? - correct answer. Electron becomes excited by absorbing electromagnetic radiation . Moves up the energy levels . Electrons can emit electromagnetic radiation and move down levels Ex