Help with physics (year 10)

Y9_10 Series and parallel circuits.mp4
Y9_10 Voltage-current graphs.mp4
Y9_10 Resistance specified practical.mp4
Y9_10 Resistance.mp4
Y9_10 Energy types and changes.mp4
Y9_10 Electrical power.mp4
Y9_10 Electrical devices.mp4
Y9_10 Sankey diagrams and Efficiency.mp4
Y9_10 Producing electricity - Power Stations.mp4
Y9_10 Renewable energy resources.mp4
Y9_10 Non-renewable energy resources.mp4
Y10 Heat Transfer Question.mp4