edexcel-combined-papers

Edexcel Combined – P6

Charge

The size of the current is the rate of flow of charge. Electrons are negatively…

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Resistance

Resistance is an electrical quantity that measures how a device or material reduces the electrical…

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Density

Density is a measure of how compact the particles are in a substance. Density is defined…

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Edexcel Combined – P5

Momentum

All moving objects have momentum. Forces can cause changes in momentum. The total momentum in…

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Speed

Speed is how fast an object is moving in no given direction. Velocity is how…

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