DISTANCE-TIME GRAPHS.

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Presentation transcript:

DISTANCE-TIME GRAPHS

DISTANCE-TIME GRAPHS Click to find out the answers! Work out the speed for each object shown in the graph! 1. Yellow line 30/10 = 3 m/s 2. Blue Line 20/10 = 2 m/s 3. Pink line 10/10 = 1 m/s A straight line shows an object moving at a constant speed! The steeper the line, the faster the object is moving!

STATIONARY OBJECTS! A flat, horizontal line shows a stationary object!

ACCELERATING OBJECTS Curved lines show if an object is accelerating or decelerating! The steeper the line gets the faster the object is moving!

GRAPH QUESTIONS! 1. What is the speed of the man during the first three seconds? 2. What is the man doing between 3 and 5 seconds? 3. Calculate the speed of the man between 5 and 7 seconds. 4. What is the total distance that he has moved? 5. Calculate the average speed for the whole journey. 1. 12/3 = 4 m/s 2. Stationary 3. 12/2 = 6 m/s 4. 24 m 5. 3.4 m/s Click for answers!

Distance-Time Extras bonus task Draw a distance-time graph showing your journey to school! Try to include different gradients to show different speeds. Remember – steep slope is fast, gentle slope slow!! Try to include rough distances and times at key points on your graph. bonus task Sketch a distance -time graph for a parachute jump! Think carefully!!!!

A JOGGING GRAPH! Describe the motion of the jogger in each section of the graph!