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The mass of the drone is 4.0kg. The drone rises from the ground to a height of 15m. Show that the useful work done on the drone in lifting it to a height of 15m is about 590 J.
See it on the paper →State the energy store that increases as the drone rises.
See it on the paper →State two energy stores in which the energy stored is increasing as the rocket accelerates upwards.
See it on the paper →Calculate the work done by the elephant when the tree trunk is moved 20 m. work done =
See it on the paper →Complete the sentence to describe the changes to the energy stores when the car accelerates. The amount of energy in the energy store decreases and
See it on the paper →When the car is travelling at constant speed there are changes to the amount of energy stored in two energy stores. State the name of the energy stores and describe these changes.
See it on the paper →The electromagnet lifts the car to a height of 15 m. The car has a mass of 1200 kg. Calculate the work done on the car when it is lifted to a height of 15 m. The gravitational field strength is g = 10 N / kg. work done = J
See it on the paper →Many candidates missed marks because they suggested gravitational energy or potential energy rather than gravitational potential energy.
— Examiner report, February/March 2025, 0654/32 Q10(d)(iii) (Cambridge)
Most candidates correctly determined the work done as 30 000 J.
— Examiner report, February/March 2025, 0654/32 Q11(a)(i) (Cambridge)
Many candidates recognised the increase in kinetic energy. Fewer recognised that the chemical energy store would decrease.
— Examiner report, February/March 2025, 0654/42 Q9(c)(i) (Cambridge)
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Fig. 12.2 shows a cyclist moving along a flat road. Fig. 12.2 Choose words or phrases from the list to complete the sentence. Each word or phrase may be used once, more than once or not at all. chemical potential elastic potential gravitational potential kinetic As the cyclist’s speed increases, the energy in the cycli...
State the energy store in the battery (cells) that is decreasing when the circuit is switched on.
See it on the paper →The athlete runs up a hill at constant speed. Use words or phrases from the list below to complete the sentences about the energy transfers taking place. Each word or phrase may be used once, more than once or not at all. chemical potential gravitational potential kinetic light Stored energy from food is transferred to...
See it on the paper →The tractor uses diesel fuel. State the form of energy stored in the diesel fuel.
See it on the paper →An electric drill transfers 1200 J of electrical energy to 900 J of useful kinetic energy. Calculate the efficiency of the electric drill. efficiency = %
See it on the paper →Which form of energy is increasing as he accelerates downwards through the air?
See it on the paper →Identify the form of energy stored in aircraft fuel.
See it on the paper →After the journey, the car needs to be refuelled at a gasoline (petrol) station. State the type of energy stored in the fuel.
See it on the paper →An electric car may be recharged by solar cells. Complete the sentences to describe how a solar cell can provide energy. Light energy from the is absorbed by the solar cell.
See it on the paper →State the type of energy that decreases as the brick moves down the board.
See it on the paper →State the name of the process that transfers thermal energy from the Sun through the vacuum of space.
See it on the paper →Describe how electrical energy is obtained from the water behind a hydroelectric dam.
See it on the paper →Which graph is most likely to be correct?
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