Flashcards
Speed
Cards in this deck (19)
- 1What is the difference between distance and displacement?distance is a scalar quantity and only has a magnitude (size), displacement is a vector quantity and has both magnitude and direction
- 2What is the difference between speed and velocity?speed is a scalar quantity and only has a magnitude (size), velocity is a vector quantity and has both magnitude and direction
- 3What factors can affect the speed at which someone walks, runs, or cycles?age, fitness, terrain, and distance travelled
- 4What are typical speeds for a person walking, running, and cycling?1.5 m/s, 3.0 m/s, and 6.0 m/s respectively
- 5What are typical speeds of a car and a train?13–30 m/s and 50 m/s respectively
- 6What is a typical speed for sound travelling in air?330 m/s
- 7What is acceleration?change in velocity of an object per second
- 8What is the unit of acceleration?m/s2
- 9How can an object be accelerating even if it is travelling at a steady speed?if it is changing direction
- 10What is happening to an object if it has a negative acceleration?it is slowing down
- 11What information does the gradient of the line in a distance–time graph provide?speed
- 12What information does the gradient of the line in a velocity–time graph provide?acceleration
- 13How can the distance travelled by an object be found from its velocity–time graph?calculate the area under the graph
- 14What is the acceleration of a free-falling object due to gravity?~9.8 m/s2
- 15What is the name for the steady speed a falling object reaches when the resistive force is equal to its weight?terminal velocity
- 16What is the general name for the frictional forces an object experiences when moving through a fluid (liquid or gas)?drag
- 17In which direction does the drag on an object always act?in the direction opposite to which it is moving
- 18What happens to the drag on an object as its speed increases?the drag increases
- 19What can be done to reduce the drag on an object?streamlining
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- GCSE Physics (Speed (major focus)) Flashcards on Speed, created by Madeleine Dossett on 06/04/2022.
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- Madeleine Dossett
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