Skip to content

Course home

Sign up

2.3 Transfer of thermal energy

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546
Question 8

A student is investigating whether wrapping a glass beaker with a layer of bubble wrap reduces the rate of cooling of hot water.

The student has the following apparatus available:

  • thermometer
  • 250 cm3250\text{ cm}^3250 cm3 glass beaker
  • 250 cm3250\text{ cm}^3250 cm3 measuring cylinder
  • heatproof mat
  • sheet of bubble wrap and an elastic band to secure it.

Plan an experiment to investigate whether wrapping the beaker in bubble wrap reduces the cooling rate.

You should:

  • list the additional apparatus that you would require
  • explain briefly how you would carry out the investigation
  • state the key variables that you would control
  • draw a table, with column headings, to show how you would display your readings; you are not required to enter any readings in the table
  • explain how you would use your readings to reach a conclusion.

A diagram is not required but you may draw a diagram if it helps your explanation.

[9]
Markscheme

2.3 Transfer of thermal energy Questions

  1. IGCSE
  2. /Physics
  3. /2.3 Transfer of thermal energy

301 exam-style questions on CIE IGCSE Physics 2.3 Transfer of thermal energy, covering 2.3.1a Thermal conductors and thermal insulators, 2.3.1b Explaining thermal conduction, 2.3.2 Convection, 2.3.3a Thermal radiation, 2.3.3b Surface colour and texture, 2.3.3c Rate of emission and absorption of radiation, and 2.3.4 Consequences of thermal energy transfer. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank