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Conservation of energy and forces doing work (topics 3 and 8)

From Paper 1, Higher
26 marks
Describe a method to measure the specific heat capacity of a metal block.
From Paper 1, Higher
72 marks
Calculate the energy needed to raise the temperature of 2.0 kg of a material (specific heat capacity 4200 J/kg °C) by 15 °C.
From Paper 1, Higher
122 marks
Calculate the energy needed to raise the temperature of 0.5 kg of a material (specific heat capacity 900 J/kg °C) by 40 °C.
From Paper 1, Higher
163 marks
Explain how insulation in a house reduces energy transfer.
From Paper 1, Higher
206 marks
Compare the use of wind turbines and gas-fired power stations to generate electricity.
From Paper 1, Higher
241 mark
Which is a renewable energy resource?
From Paper 1, Higher
283 marks
Explain why a system's total energy is constant even though energy is 'wasted'.
From Paper 1, Higher
323 marks
A kettle has a power of 2.2 kW. Calculate how long it takes to transfer 330 kJ of energy, and explain why the actual time to boil may be longer.
From Paper 1, Higher
353 marks
Describe the energy transfers when a car brakes to a stop.
From Paper 2, Higher
14 marks
A 0.5 kg ball is dropped from 5.0 m. Calculate its speed just before it hits the ground, ignoring air resistance. (g = 9.8 N/kg)
From Paper 2, Higher
52 marks
Explain why a lubricant can increase the efficiency of a machine.
From Paper 2, Higher
104 marks
Explain the trends in the use of energy resources in the UK over the last 50 years.
From Paper 2, Higher
152 marks
Calculate the elastic potential energy stored in a spring of spring constant 250 N/m stretched by 0.08 m.
From Paper 2, Higher
202 marks
Calculate the elastic potential energy stored in a spring of spring constant 50 N/m stretched by 0.12 m.
From Paper 2, Higher
243 marks
Explain why a hot drink cools more slowly in a vacuum flask.
Score 0 / 46 · 0 of 15 marked

This paper is written by Plasmo in the style of the Edexcel GCSE Physics exam. It is not a past paper and is not produced or endorsed by the exam board.

Conservation of energy and forces doing work (topics 3 and 8) Exam Questions: Edexcel GCSE Physics | Plasmo