Speed (Edexcel GCSE Physics Combined Science): Flashcards

Scalar

How fast an object is moving (not direction)

No, speed is not constant

Scalar

Vector

Distance & direction in straight line from start to finish

$v = \frac{s}{t}$

Fitness decreases with age, reducing speed

Rough terrain has more friction, reducing speed

Lactic acid builds up, causing cramps & reduced speed

More fit = better cope with intense exercise

1.5 m/s

3 m/s

6 m/s

330 m/s