Physics 2a - Motion, Energy and Electricity (Velocity and time distance graphs)

Beschreibung

Additional physics for GCSE AQA exam board. This set looks at velocity and time distance graphs.
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Zusammenfassung der Ressource

Frage Antworten
What is speed? How fast you are travelling with no regard to direction. (30 mph or 20 m/s etc)
What is velocity? Velocity is the same as speed but with the direction specified. (30 mph north, 20 m/s 060°, etc)
How to you work out the speed from this time-distance graph? Gradient = speed so you divide the vertical by the horizontal. For example, between 300 meters and 20 seconds, you would do 300/20 which makes 15 m/s.
What do the flat sections mean on these distance-time graphs? The straight lines mean that the object is stationary - not moving.
How does the steepness of the gradient relate to the speed of the object moving. The steeper the gradient, the faster the object is travelling.
What do the curves represent? Acceleration/deceleration depending on direction of curve.
Explain what each curve means - steepening and levelling? Steepening means that the object is accelerating faster and faster. Levelling means that the object is decelerating slower and slower.
What do the straight lines mean going up or down? The straight lines mean that the object is travelling at a steady speed. Going up means it is going away from the start point and going down means it is coming back to the start point.
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