P1a Latent Heat - Changing State
- Specification
- Lesson Plans
- Questions
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FOUNDATION
ONLY on Foundation Tier
State that energy is needed to melt or boil things.
Interpret data which shows that there is no temperature change when materials are:
- boiling;
- melting or freezing.
STANDARD
BOTH Foundation and Higher Tiers
Describe how, even though energy is still being transferred, there is no temperature change when materials are:
- boiling;
- melting or freezing.
Recognise that the specific latent heat of materials is:
- a measure of how much energy is needed to melt or boil them;
- the energy needed to melt or boil 1kg of them;
- different for different materials and states.
HIGHER
ONLY on Higher Tier
State and use the equation:
energy = mass x specific latent heat.
(A change of subject may be required.)
Lesson 1
2010_10_050
Lesson 2
2010_10_051
Content 5