Velocity-Time Graph - GCSE Physics Definition

Reviewed by: Caroline Carroll

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A Velocity-Time Graph is a visual tool used in physics to show how the velocity of an object changes over time. On this graph, the horizontal axis (the x-axis) represents time, while the vertical axis (the y-axis) represents velocity. If the line on the graph is horizontal, it means the object is moving at a constant velocity. If the line is sloping upwards, the object is speeding up, and if it's sloping downwards, the object is slowing down. The steepness of the line tells you how quickly the velocity is changing, also known as acceleration. By calculating the area under the line on the graph, you can also find the total distance the object has travelled during the period shown on the graph.

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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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