Question

1. Distance-Time Graphs Look at the distance-time graph for a woman walking below. Answer the following questions from the graph. i. Between 0s and 10s is the woman accelerating? Yes / No ii. Between 10s and 40s is the woman accelerating? Yes / No iii. Is the woman moving fastest between 0 and 10s, or 10s and 40s? 0 & 10s / 10s & 40s iv. How do you judge if an object is moving quickly or slowly on a distance-time graph? v. Work out the speed between 0 and 5s by creating a triangle under the line to calculate the gradient. vi. Now, work out the speed between 5 and 10s by creating a triangle under the line to calculate the gradient. vii. Was the object moving at a constant speed or accelerating/ decelerating between 0 and 10s? viii. Work out the speed between 10s and 20s by creating a triangle under the line to calculate the gradient. ix. Now, work out the speed between 30s and 40s by creating a triangle under the line to calculate the gradient. x. Was the object moving at a constant speed or accelerating/ decelerating between 10 and 40s?

Answer 1

(i) Yes

(ii) yes

(iii) yes

(iv) By finding it's speed by the formula of speed

speed = distance / time

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Answer 2

i) Yes

ii) Yes

iii) Yes

iv) By finding its speed...

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