GCSEPhysics Energy Calculations. ALL QUESTIONS 2022/2023

. Calculate the kinetic energy of a 1200 g object travelling at 52 m/s. 2. Calculate the velocity of a 800 kg car moving with 280 kJ of kinetic energy. 3. Calculate the elastic potential energy stored in a spring wi ...

. Calculate the kinetic energy of a 1200 g object travelling at 52 m/s. 2. Calculate the velocity of a 800 kg car moving with 280 kJ of kinetic energy. 3. Calculate the elastic potential energy stored in a spring with a spring constant of 86 N/m when it is stretched by 13 cm. 4. Calculate the spring constant of a spring that is storing 0.79 J of energy when stretched 12 cm. 5. Calculate the change in gravitational energy when a 3.7 kg object moves upwards 17 m. 6. Calculate the increase in energy when 400 g of a liquid with a specific heat capacity of 2700 J/kg°C increases in temperature from 20°C to 58°C 7. Calculate the specific heat capacity of a 2.5 kg block of metal which absorbs 39 kJ of energy and increases in temperature by 20°C. 8. Calculate the power of a machine that transfers 240 kJ of energy in 3 minutes. 9. Calculate the speed of a 48 kg object that has fallen through a height of 26 m. 10. Calculate the efficiency of an electric motor which uses 7.4 kJ of energy to lift a 34 kg object 11 m. 11. Calculate the maximum height that could be reached by a 87 g object fired from a catapult with a spring constant of 200 N/m when it has been stretched 27 cm.GCSE Physics Energy Calculations “students should be able to…” Sheet 2 1. Calculate the kinetic energy of a 1900 g object travelling at 74 m/s. 2. Calculate the velocity of a 1800 kg car moving with 920 kJ of kinetic energy. 3. Calculate the elastic potential energy stored in a spring with a spring constant of 55 N/m when it is stretched by 13 cm. 4. Calculate the spring constant of a spring that is storing 0.49 J of energy when stretched 6 cm. 5. Calculate the change in gravitational energy when a 9.8 kg object moves upwards 13 m. 6. Calculate the increase in energy when 180 g of a liquid with a specific heat capacity of 3700 J/kg°C increases in temperature from 23°C to 89°C 7. Calculate the specific heat capacity of a 2.1 kg block of metal which absorbs 20 kJ of energy and increases in temperature by 22°C. 8. Calculate the power of a machine that transfers 210 kJ of energy in 6 minutes. 9. Calculate the speed of a 50 kg object that has fallen through a height of 14 m. 10. Calculate the efficiency of an electric motor which uses 7.5 kJ of energy to lift a 29 kg object 14 m. 11. Calculate the maximum height that could be reached by a 64 g object fired from a catapult with a spring constant of 320 N/m when it has been stretched 29 cm.GCSE Physics Energy Calculations “students should be able to…” Sheet 3 1. Calculate the kinetic energy of a 1500 g object travelling at 50 m/s. 2. Calculate the velocity of a 2200 kg car moving with 1320 kJ of kinetic energy. 3. Calculate the elastic potential energy stored in a spring with a spring constant of 43 N/m when it is stretched by 24 cm. 4. Calculate the spring constant of a spring that is storing 0.29 J of energy when stretched 5 cm. 5. Calculate the change in gravitational energy when a 3.9 kg object moves upwards 14 m. 6. Calculate the increase in energy when 240 g of a liquid with a specific heat capacity of 3900 J/kg°C increases in temperature from 25°C to 37°C 7. Calculate the specific heat capacity of a 1.9 kg block of metal which absorbs 33 kJ of energy and increases in temperature by 15°C. 8. Calculate the power of a machine that transfers 260 kJ of energy in 3 minutes. 9. Calculate the speed of a 154 kg object that has fallen through a height of 48 m. 10. Calculate the efficiency of an electric motor which uses 6.9 kJ of energy to lift a 29 kg object 15 m. 11. Calculate the maximum height that could be reached by a 67 g object fired from a catapult with a spring constant of 310 N/m when it has been stretched 30 cm.GCSE Physics Energy Calculations “students should be able to…” Sheet 4 1. Calculate the kinetic energy of a 1400 g object travelling at 59 m/s. 2. Calculate the velocity of a 900 kg car moving with 340 kJ of kinetic energy. 3. Calculate the elastic potential energy stored in a spring with a spring constant of 53 N/m when it is stretched by 25 cm. 4. Calculate the spring constant of a spring that is storing 0.45 J of energy when stretched 17 cm. 5. Calculate the change in gravitational energy when a 5.4 kg object moves upwards 3 m. 6. Calculate the increase in energy when 740 g of a liquid with a specific heat capacity of 2100 J/kg°C increases in temperature from 19°C to 52°C 7. Calculate the specific heat capacity of a 2 kg block of metal which absorbs 23 kJ of energy and increases in temperature by 11°C. 8. Calculate the power of a machine that transfers 470 kJ of energy in 5 minutes