Speed (AQA GCSE Physics Combined Science): Flashcards
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13 cards from this deck
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Practise the cards
13 cards from this deck
Type of quantity: speed
Type of quantity: speed
Scalar
What does speed tell us?
What does speed tell us?
How fast an object moves (not direction)
Is speed constant?
Is speed constant?
No, it varies over time
Distance (definition)
Distance (definition)
How far an object moves (scalar)
Displacement (definition)
Displacement (definition)
Distance & direction in straight line, start to finish (vector)
Speed formula
Speed formula
Age effect on speed
Age effect on speed
Fitness decreases with age, reducing speed
Terrain effect on speed
Terrain effect on speed
More friction & incline reduce speed
Distance travelled effect on speed
Distance travelled effect on speed
Lactic acid buildup causes cramps, reduces speed
Fitness effect on speed
Fitness effect on speed
Higher fitness = better cope with intense exercise
Normal walking speed
Normal walking speed
1.5 m/s
Running speed
Running speed
3 m/s
Speed of sound in air
Speed of sound in air
330 m/s