Kinematics and Graph

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Motion

1The table gives values of distance and time for a child travelling along a straight track competing in an egg and spoon race. Time (seconds) |0 |5 |10 |15 |20 |25 | |Distance (metres) |0 |8 |20 |20 |24 |40 | |aCopy the graph axes below on to graph paper. Plot a graph of distance against time for the child. [pic](3)

bName the dependent variable shown on the graph.

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cWhat type of variable is this?

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dUse your graph to estimate the distance travelled in 22 seconds.

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eUse your graph to estimate the time taken for the child to travel 15 metres.

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fDescribe the motion of the child between 10 seconds and 15 seconds. Give a reason for your answer.

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2The graph shows how far a runner travels during a charity running race. [pic]
aWhat was the distance of the race?

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bHow long did it take the runner to complete the race?

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cFor how long did the runner rest during the race?

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dBetween which two points was the runner moving the fastest? Give a reason for your answer.

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eBetween which two points did the runner travel at the same speed as they did between A and B?

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fCalculate the speed of the runner between B and C in metres per second. Show clearly how you work out your answer.

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3A cyclist is travelling along a straight road. The graph shows how the velocity changes with time for part of the journey. [pic]
aExplain how is acceleration found from a velocity–time graph.

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bCopy and complete the following sentences using the list of words and phrases below. Each one can be used once, more than once or not at all. is stationary travels at a constant speed accelerates decelerates

iBetween A and B the cyclist ……………………...
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