Pearson Edexcel International GCSE (9–1) · PHYSICS · Chapter
Change of State
56 practice questions
Topics covered
Practice questions
1–10 of 25 · Easy
Question 1
1 mark · Easy
Answer and see the solution →Give the scientific term for the energy required to raise the temperature of 1 kg of a substance by 1 °C.
Question 2
2 marks · Easy
Answer and see the solution →State one property of liquids that is also true for gases, and one property that is different between liquids and gases.
Question 3
3 marks · Easy
Answer and see the solution →The diagram below shows particles in one of the three states of matter.
Arrangement of particles (a)[1 mark]Identify the state of matter shown.
(b)[2 marks]Describe the arrangement of the particles in this state.
Question 4
2 marks · Easy
Answer and see the solution →Explain why gases are easy to compress but solids are not. Give a reason referring to the particle model.
Question 5
2 marks · Easy
Answer and see the solution →Calculate the increase in thermal energy (in joules) needed to raise the temperature of 200 g of water by 5 °C. (The specific heat capacity of water is 4200 J/kg°C)
Question 6
1 mark · Easy
Answer and check →Which of these statements best describes the arrangement of particles in a liquid?
- A.They are tightly packed, arranged in a regular pattern.
- B.They are close together but can move past one another.
- C.They are far apart and move randomly.
- D.They are fixed in place and cannot move.
Question 7
3 marks · Easy
Answer and see the solution →A block of aluminium weighs 0.5 kg. Its specific heat capacity is 900 J/kg°C.
(a)[2 marks]Calculate the energy required to heat the block from 15 °C to 25 °C.
(b)[1 mark]Explain what would happen to the particles in the aluminium block as its temperature increases.
Question 8
2 marks · Easy
Answer and see the solution →A physics student says: “Two blocks of different materials, each of mass 1 kg, receive the same amount of energy, but one heats up more than the other.” Explain, using the concept of specific heat capacity, why this happens.
Question 9
1 mark · Easy
Answer and see the solution →State the SI unit of specific heat capacity.
Question 10
2 marks · Easy
Answer and see the solution →A student heats a 0.25 kg aluminium block from 20 °C to 40 °C, supplying 2,200 J of energy. Calculate the specific heat capacity of aluminium.