4.5.2.1 Transfer

Spec reference: 4.5.2 (subtopic).

What you need to know

• Transferring Energy by Heating
• Heating a material transfers the energy to its thermal energy store - the
• temperature increases.
• E.g. a kettle: energy is transferred to the thermal energy store of the
• kettle. Energy is then transferred by heating to the waters thermal energy
• store. The temperature of the water will then increase.
• Some materials need more energy to increase their temperature than
• others.

Self-assessment (checklist)

• I can describe how force causes work to be done on an
• I can recall and apply the correct equation to calculate the
• I can rearrange the equation linking distance, force and
• I can convert between newton-metres and joules.
• I can describe the energy transfer involved when work is
• I can explain how work done against the frictional forces

Key steps (method)

• Identify what the question is testing and use the correct equation/definition.
• Show substitutions and units clearly.

Common mistakes

• Unit conversions, rearranging errors, or quoting a law without applying it.