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Tangent - GCSE Physics Definition

Reviewed by: Caroline Carroll

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In GCSE Physics, the term 'tangent' refers to a straight line that touches a curve at just one point and does not cross it. This line is used to find the slope or gradient at that particular point on a graph. For example, if you have a distance-time graph of an object's movement, drawing a tangent at a point on the curve can help you determine the speed of the object at that exact moment. The tangent gives an instant rate of change, which is really useful for understanding how things move in physics.

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Caroline Carroll

Reviewer: Caroline Carroll

Expertise: Physics & Chemistry Subject Lead

Caroline graduated from the University of Nottingham with a degree in Chemistry and Molecular Physics. She spent several years working as an Industrial Chemist in the automotive industry before retraining to teach. Caroline has over 12 years of experience teaching GCSE and A-level chemistry and physics. She is passionate about creating high-quality resources to help students achieve their full potential.

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