phisics 0.0 / 5 ? PhysicsscienceGCSENone Created by: TulipMizener16Created on: 22-05-18 09:56 what is an electrical current? an electrical current is a flow of electric charge. 1 of 10 what do you measure currents in? you measure currents in amps using an ammeter 2 of 10 what is potential difference? potential difference is the difference of electrical potential between two points. 3 of 10 what is potential difference measured in? it is measured in joules (J) 4 of 10 what is resistance? The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor. 5 of 10 what is resistance measured in? it is measured in ohms 6 of 10 what is the equation to work out pressure? pressure=force/area 7 of 10 what are the law of moments? When an object is balanced (in equilibrium) the sum of the clockwise moments is equal to the sum of the anticlockwise moments. 8 of 10 what is a pivot? a pivot is a point at which a lever turn around 9 of 10 What is a lever? A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed pivot. 10 of 10
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