New GCSE AQA Physics lesson on ‘Latent Heat’ written in line with new AQA Physics specification.
Lesson Outline:
Starter review the change of state graph to look at why the temperature does not increase at the transition point of state of matter whilst it substance is still heated. To answer this internal energy is first recapped. This highlights the importance of the potential energy of the substance/ position of particles in a substance for different states and also overall internal energy. This leads to the conclusion that the energy is being used to change these particles position and overcome forces of attraction within a substance in order to change state - therefore no temperature increase.
Latent heat of fusion and latent heat of vaporisation are both discussed in detail with the equation and in relation to the graph. Examples of the equation in use show how to carry out calculations to pupils. Lesson concludes with review questions.
Lesson Objectives:
- Explain what happens to a substance as it is provided more energy without a temperature change.
- State and explain what is meant by specific latent heat.
- Compare and contrast latent heat of fusion and latent heat of vaporisation
- Successfully apply latent heat equations to solve problems.
Get this resource as part of a bundle and save up to 43%
A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.
Something went wrong, please try again later.
I love the bold graphics and the colour schemes of this powerpoint presentation. My only criticism is that change of state labelled "evaporation', should be labelled "boiling', to sync with the AQA Mark scheme. If they choose evaporation, they won't get the mark (Evaporation can occur at lower temperatures.) I have managed to edit it out on some but the powerpoint techniques are a little sophisticated for me.
Great resource
Great resource, There are some answers missing at the end for the review question. Whilst for a physics teacher this would not be a problem some non specialists might be stumped if they don't realize beforehand.
Report this resourceto let us know if it violates our terms and conditions.
Our customer service team will review your report and will be in touch.
£3.00