Work, Energy and Power notes
19 notes by 18 users
This GoConqr page gathers a small set of user-made notes on work, energy and power, from energy conversions to work done. The collection is mainly for school students studying these ideas and teachers looking for material, with a few resources for primary pupils. Explore the notes and choose a topic to start with.
Notes
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Work, Energy & Power: Energy Conversions Chemical to kinetic: Within muscle cells during the metabolism of ATP The chemical energy binding the ATP molecules together is released as the molecule breaks This causes the muscles to contract Potential to kinetic:...
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Chapter 7 Energy Chapter 7 Energy 7.1 Work Work: is the effort exerted on something that will change its energy 2 factors whenever work is done 1. The application of a force 2. The movement of something by that force Work= force X dis...
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Physical Science Lesson 2 Energy is a measure of capacity to do work. Energy is a state, Work is done when a change in energy occurs and work is a process occurring in time. In physical science, work is defined as the ...
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P2a (part 2) Work DoneWhen a force moves an object through a distance, energy is transferred and work is done when something moves something else is providing energy to do so The thing putting in energy needs s supply of energy (e...
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Physics 1A MT2 Notes Work work is equal to the component of the force in the direction of the displacement multiplied by the displacement if F║ and s are in the same direction (0º positive and the object speeds up if F║ is ...
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Topic 4a: Work work: the physical effects of an external force applied to an object resulting in a net displacement in the direction of the force. Scalar quantity expressed in joules or Newton meters the work done by a constant forc...
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Untitled Principle of Moments When an object is EQUILIBRIUM (balanced forces), the sum of the ANTI - CLOCKWISE moment is equal to the sum of CLOCKWISE moment about the pivot. CM = ACMF * D = F * DAnswer in Nm UNITS Energy - Jo...
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Untitled • You push a heavy box in a straight line along the top of a rough horizontal table. The box starts at rest and ends at rest. Describe the work done on it (including sign) by each force acting on it and the net work d...
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Physics - created from Mind Map Forces and their effects Kinetic energy Electricity
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Maths for P2
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Work, Energy & Power: Forms of Energy Kinetic energy: The energy a body has due to its motion Formula: 1/2 mv Potential energy: The energy of a body due to its position Formula: mgh (m = mass, g = acceleration due to gravity, h = height) Thermal energy: T...
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Energy - created from Mind Map Work W=Fd Power Units - Joules (J) P=W/t Units are Watts (W) 746W = 1hp Kinetic Energy (KE) (1/2)mv² for when stuff is moving Potential Energy PEg = mgh There are a lot of different types of Potential Energy
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Work - created from Mind Map
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work power and energy - created from Mind Map key concepts(work) what is work done?when a force acts on a body it gets dsplased in any direction exept in the direction perpendicular to the work done.FORMULA(w=f.s) when is work said to be 1j?when a work of 1N disp...
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P2.3 when an object is moved by a force, we say work is done on the object. The work transfers energy to the objectWORK DONE=ENERGY TRANSFERRED. this is the equation to tell us the work done by a force and distance mo...
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Physics Work Done and Power
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Kinetic Enegry Kinetic Energy Work out the kinetic energy if a 625 kg rollercoaster car that is moving at a speed of 20 m/s.Kinetic energy = 1/2 x Mass x Speed squared Kinetic energy = 0.5 x 625 x 20 squared =0.5 x 625 x 400=125000G...
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science final Explain how the everyday meaning of "work" differs from its scientific term Work is a physical or mental activity one does, and work in its scientific term means motion exerted by force work is measured in joule...
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Work Work as an Energy Transfer Work is a force applied over a distance. Work is only done when an object moves in the same direction as the force. If the object doesn't move in the direction of the force there is no...
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About work, energy and power notes
GoConqr OriginalWork, energy and power notes
The notes on this page approach the unit from several angles. Work, Energy & Power: Forms of Energy covers kinetic and potential energy, while Work, Energy & Power: Energy Conversions describes changes between forms of energy. Other notes connect work to force and movement.
Using the notes
For a starting point, try Chapter 7 Energy. It introduces work through force and the movement of an object. Then compare it with Topic 4a: Work to see another set of notes on work and displacement.
As you read, write down the terms and equations you want to remember. Return to the relevant note when you need to check an idea. If you want to test your understanding or see connections in a different layout, switch to a quiz or mind map on the unit page. Pick a note and begin with the idea you want to study.
Frequently asked questions
Which note is a useful place to start?
Chapter 7 Energy is a useful starting point if you want an introduction to work. It describes work in terms of a force and the movement of an object. You can then look at Topic 4a: Work for another account of work and displacement.
What do the notes cover?
The collection includes notes on work, forms of energy and energy conversions. Work, Energy & Power: Forms of Energy covers kinetic and potential energy, while Work, Energy & Power: Energy Conversions includes an example of chemical energy leading to movement in muscle cells.
Are these notes free to use?
Yes. Every note listed here is free to open and study without an account. The resources were made by GoConqr users. A free account also lets you save quiz scores and make your own quizzes, mind maps, flashcards and notes.