Unit 1: Physics 1
P1.1 The transfer of energy by heating processes and the factors that affect the rate at which
that energy is transferred
P1.2 Energy and efficiency
P1.3 The usefulness of electrical appliances
P1.4 Methods we use to generate electricity
P1.5 The use of waves for communication and to provide evidence that the universe is
Follow this link to find past papers and mark schemes for AQA Science A.
UNIT 1 PAST PAPER & MARK SCHEMES
Download the files below for solutions to the examination style questions in your booklets.
P1 Physics Resources
P1.1 Heat Transfer
Heat Transfer By Conduction
Heat Transfer by Radiation
Evaporation & Condensation
Specific Heat Capacity Explained
P1 1.2 Energy & Efficiency
Energy & Efficiency - Doodle
Energy Transfer - Sankey Diagrams
Info and help with U-Values
If you have a look on YouTube there is a channel called Doodle science - it's a bit brief but covers the basics really well.
Another good channel is mygcsescience - it has videos specific to AQA CORE AND ADDITIONAL science.
U-values measure how effective a material is an insulator.
The lower the U-value is, the better the material is as a heat insulator.
For example, here are some typical U-values for building materials:
Note that you do not need to remember any U-values for the exam or know the equation used to calculate U-values.
Architects need to know how well different materials will insulate the building they design. To help them with this they need to know the U-values of different materials.
A U-value of 1 W/(m² oC) means a 1 metre square area of the material with a 1 oC temperature difference across the material will conduct heat at a rate of 1 joule per second. (this definition is not necessary)
U-values measure how effective an insulator something is. The lower the U-value the better the material is at insulating. (This bit is all that you really need)
P1 1.3 The usefulness of electrical appliances
Calculating the cost of electricity
Doodle Science - Non Renewable Energy Resources
Doodle Science - Renewable Energy Resources 1
Doodle Science - Renewable Energy Resources 2
Transformers and the National Grid