What this topic covers
Topic 8: Energy - Forces doing work has 2 subtopics:
- Energy stores and transfers
- Work done, kinetic energy and power
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GCSE Edexcel Higher Physics · Topic 8 of 15
Topic 8: Energy - Forces doing work – GCSE Edexcel Higher Physics revision notes
Choose a subtopic. Work done, power and mechanical energy transfers. 12 lessons in 2 subtopics.
Revise Topic 8: Energy - Forces doing work for GCSE Edexcel Higher Physics, including Energy stores and transfers and Work done, kinetic energy and power.
12
Lessons
2
Subtopics
Topic 8: Energy - Forces doing work lessons by subtopic
12 lessons, grouped by subtopic.
Energy stores and transfers
- Energy Stores & Systems: Introduction
- Energy Transfer Examples
- Work Done and Energy Changes: Understand the relationship between work done and changes in energy stores within a system. Also, see energy redistribution.
- Kinetic Energy Calculations
- Elastic Potential Energy Calculations
- Gravitational Potential Energy Calculations
- Specific Heat Capacity Explained
- Understanding Power
- Calculating Power
Work done, kinetic energy and power
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Frequently asked questions
What is Topic 8: Energy - Forces doing work?
Work done, power and mechanical energy transfers. 12 lessons in 2 subtopics.
What are the energy stores in physics?
The main energy stores at GCSE are kinetic, thermal, chemical, gravitational potential, elastic potential, magnetic, electrostatic and nuclear. The Energy Stores & Systems: Introduction notes cover this in full.
What is an energy store?
An energy store is where energy is held in an object or system, because energy is always stored somewhere. The Energy Stores & Systems: Introduction notes cover this in full.
What is the formula for kinetic energy?
The kinetic energy formula is Ek = ½mv², where m is mass in kg, v is speed in m/s and kinetic energy is in joules (J). The Kinetic Energy Calculations notes cover this in full.
What is the specific heat capacity equation?
The specific heat capacity equation is ΔE = mcΔθ, where ΔE is the change in thermal energy in joules, m is mass in kg, c is specific heat capacity in J/kg°C and Δθ is the temperature change in °C. The Specific Heat Capacity Explained notes cover this in full.
What is the equation for power?
The power equations are P = E/t and P = W/t: power equals energy transferred, or work done, divided by time. The Calculating Power notes cover this in full.
What is the formula for elastic potential energy?
The elastic potential energy formula is Ee = ½ke², where k is the spring constant in N/m, e is the extension in metres and energy is in joules (J). The Elastic Potential Energy Calculations notes cover this in full.
What is the specific heat capacity of water?
The specific heat capacity of water is 4200 J/kg°C, which is very high. The Specific Heat Capacity Explained notes cover this in full.
What is the formula for gravitational potential energy?
The gravitational potential energy formula is Ep = mgh, where m is mass in kg, g is gravitational field strength in N/kg and h is height in metres. The Gravitational Potential Energy Calculations notes cover this in full.