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Speed and Velocity Speed Velocity Velocity-time graph’s Questions.

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Presentation on theme: "Speed and Velocity Speed Velocity Velocity-time graph’s Questions."— Presentation transcript:

1 Speed and Velocity Speed Velocity Velocity-time graph’s Questions

2 Speed Speed tells you how far an object has moved in a curtain time, for example, – If your going 20km/h you will travel: 20km in an hour 10km in 30 minutes Speed Velocity Velocity-time graph’s Questions

3 Speed Velocity Velocity-time graph’s Questions

4 Speed Velocity Velocity-time graph’s Questions

5 Velocity is the same as speed but it has a direction, for example: These cars have the same speed but different velocity's as they are traveling in different directions. Velocity 20km/h Speed Velocity Velocity-time graph’s Questions

6 Distance-time graph This graph shows us - 1) How far something has travelled - 2) How long it took to travel that distance Time(s) Distance (m) Speed Velocity Velocity-time graph’s Questions

7 Distance-time graph Using the 2 things that the graph shows us we can calculate speed. We do this using the gradient: Time(s) Distance (m) =10m/s Speed Velocity Velocity-time graph’s Questions

8 Question time 1)What is the difference between speed and velocity? 2)If a car is traveling at 80km/h, how far will it get it 45 minuets? 3)If a car goes round a corner at a constant speed why is its velocity still changing? Speed Velocity Velocity-time graph’s Questions


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