Topic study hub
Energy
Revision and exam practice for Energy.
12
Objectives
10
Flashcards
10
Questions
88 min
Study time
OcrGcsePhysics A GatewayEnergy
Choose a revision tool
Start revising Energy
Syllabus checklist
What you need to know
12 objective pages available
Conservation of Energy in Closed Systems1 objectives
- Communicate the key features of for situations where there are energy transfers in a system, that there is no net change to the total energy of a closed system (qualitative only).
Understanding Energy Changes in Systems1 objectives
- Communicate the key features of all the changes involved in the way energy is stored when a system changes for common situations.
Energy Changes in Systems1 objectives
- Communicate the key features of the changes in energy involved when a system is changed by heating (in terms of temperature change and specific heat capacity), by work done by forces, and by work done when a current flows.
Energy Changes in Systems: Mechanical, Electrical, and Thermal Processes1 objectives
- Develop knowledge and skill in calculations of the energy changes associated with changes in a system, recalling or selecting the relevant equations for mechanical, electrical, and thermal processes; thereby express in quantitative form and on a common scale the overall redistribution of energy in the system.
Understanding Energy Forms: Kinetic, Gravitational Potential, and Elastic Potential Energy1 objectives
- Work out the amounts of energy associated with a moving body, a stretched spring and an object raised above ground level.
Understanding Energy Dissipation and Less Useful Storage1 objectives
- Develop secure knowledge and application of describe, with examples, the process by which energy is dissipated, so that it is stored in less useful ways
Energy Transfer in Domestic Devices1 objectives
- Communicate the key features of how, in different domestic devices, energy is transferred from batteries or the a.c. from the mains.
Understanding Power Ratings and Energy Changes in Domestic Appliances1 objectives
- Develop secure knowledge and application of describe, with examples, the relationship between the power ratings for domestic electrical appliances and how this is linked to the changes in stored energy when they are in use
Understanding Energy Efficiency1 objectives
- Work out energy efficiency for any energy transfer.
Increasing Efficiency in Energy Transfers (Higher)1 objectives
- Communicate the key features of ways to increase efficiency.
Reducing Unwanted Energy Transfer1 objectives
- Account for ways of reducing unwanted energy transfer.
Understanding How Buildings Cool Down1 objectives
- Communicate the key features of the way the rate of cooling of a building is affected by the thickness and thermal conductivity of its walls (qualitative only).
Key terms
No key terms are published for this topic yet.
Exam tips
No exam tips are published for this topic yet.
Common mistakes
No common mistakes are published for this topic yet.
Practice preview
- Which of the following measures helps to reduce energy dissipation as heat in electrical circuits?
- Describe three ways in which energy can be transferred to or from a system, giving an example for each. Your answer should explain how these transfers relate to changes within the system. [6 marks]
- What is the main purpose of streamlining a vehicle?
Continue by objective
Objectives are grouped by subtopic so students can jump straight to the exact skill they want to revise.
Related topics