__Drawing a distance time graph__

The Y axis should be the distance travelled from the start, meaning the bottom is time.

To plot simply mark the distance travelled at every chosen point of time: e.g every second.

__Interpreting distance time graphs__

A horizontal line is a stationary object: because time is still going forward but the object is not moving up or down the distance axis.

A line upwards is a object moving away from the start; a downward line is a object moving towards the start.

The steeper the line the faster the object: its doing more distance for time- more up for across.

To get a speed see how much up it goes for across. (the graph on the link below goes two up for one across that's two meters per second (2m/s))

The video on this page is insanely helpful: http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_pre_2011/explaining_motion/describingmotionrev2.shtml

I think it should be a horizontal line is a stationary object?

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ReplyDeleteI think You are talking about displacement time graphs.Distance time cannot be negative.however in displacement time graphs a negative gradient means that the object is moving to the opposite direction.reply if i am wrong.

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