What this topic covers
Topic P8: Global challenges has 2 subtopics:
- P8.1 Physics on the move
- P8.2 Powering Earth
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GCSE OCR Foundation Physics · Topic 8 of 9
Topic P8: Global challenges – GCSE OCR Foundation Physics revision notes
Choose a subtopic. OCR Global challenges: physics on the move, powering Earth and beyond Earth. 23 lessons in 2 subtopics.
Revise Topic P8: Global challenges for GCSE OCR Foundation Physics, including P8.1 Physics on the move and P8.2 Powering Earth. 23 lessons across 2 subtopics.
23
Lessons
2
Subtopics
Topic P8: Global challenges lessons by subtopic
23 lessons, grouped by subtopic.
P8.1 Physics on the move
- Distance, Displacement and Speed (Part 1/3)
- Distance, Displacement and Speed (Part 2/3)
- Distance, Displacement and Speed (Part 3/3)
- Velocity, Distance-Time Graphs and Speed
- Acceleration, Velocity-Time Graphs and Terminal Velocity (Part 1/3)
- Acceleration, Velocity-Time Graphs and Terminal Velocity (Part 2/3)
- Acceleration, Velocity-Time Graphs and Terminal Velocity (Part 3/3)
- Thinking Distance
- Braking Distance
- Understanding Momentum
- Introduction to Momentum Conservation
- Momentum and Safety Features
P8.2 Powering Earth
- Energy Resources: An Overview
- Environmental Impact & Reliability
- National Grid Introduction
- Transformers and Efficiency in the National Grid
- AC vs DC Potential Difference
- Mains Electricity: Dangers and Precautions
- Three-Core Cables and Wire Identification
- AC and DC Generators
- Interpreting Generator Graphs
- Introduction to Transformers
- Transformer Efficiency and Power
More in this course
Go back to the full GCSE OCR Foundation Physics topic list, or practise this topic with past-paper questions.
Frequently asked questions
What is Topic P8: Global challenges?
OCR Global challenges: physics on the move, powering Earth and beyond Earth. 23 lessons in 2 subtopics.
How do you calculate distance from speed and time?
Distance is calculated with s = vt, distance = speed × time. The Distance, Displacement and Speed (Part 2/3) notes cover this in full.
What is the typical speed of walking, running and cycling?
Typical speeds are about 1.5 m/s for walking, 3 m/s for running and 6 m/s for cycling. The Distance, Displacement and Speed (Part 1/3) notes cover this in full.
What is the equation for acceleration?
The equation for acceleration is a = Δv/t, where Δv is the change in velocity (final velocity − initial velocity) in m/s and t is the time taken in s. The Acceleration, Velocity-Time Graphs and Terminal Velocity (Part 1/3) notes cover this in full.
What is the formula for momentum?
The momentum formula is p = mv: momentum (kg m/s) = mass (kg) × velocity (m/s). The Understanding Momentum notes cover this in full.
What are fossil fuels?
Fossil fuels are energy sources formed from dead organisms buried and compressed over millions of years. The Energy Resources: An Overview notes cover this in full.
What is velocity?
Velocity is the speed of an object in a given direction, measured in metres per second (m/s) in a specified direction. The Distance, Displacement and Speed (Part 3/3) notes cover this in full.
What is stopping distance?
Stopping distance is thinking distance + braking distance. The Braking Distance notes cover this in full.
What is the unit of momentum?
The unit of momentum is kg m/s, because momentum is mass in kg × velocity in m/s. The Understanding Momentum notes cover this in full.