Distance & Position Can you state the distance between the two cars? A

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Aim: How can we distinguish between speed, velocity and acceleration?

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Presentation transcript:

Distance & Position Can you state the distance between the two cars? A

Distance & Position Can you state the distance between the two cars? A 25 -10 -5 5 10 15 20 Can you state the distance between the two cars?

Distance & Position What is the position of car A? A B 25 -10 -5 5 10 5 10 15 20 What is the position of car A?

Distance & Position What is the position of car A? car B? A B 25 -10 -5 5 10 15 20 What is the position of car A? car B?

Distance & Position Imagine the numbers shifted left by 10, 25 -10 -5 5 10 15 20 Imagine the numbers shifted left by 10, is distance changed?

Distance & Position Imagine the numbers shifted left by 10, 25 -10 -5 5 10 15 20 Imagine the numbers shifted left by 10, is position changed?

Distance & Position Define distance. Define position. What is needed to define position that is not needed to define distance? Which of these two is a vector quantity?

Speed 25 -10 -5 5 10 15 20 meters Time = 0 seconds

Speed 25 -10 -5 5 10 15 20 meters Time = 5 seconds

Speed 25 -10 -5 5 10 15 20 meters Time = 10 seconds

Speed 25 -10 -5 5 10 15 20 meters Time = 15 seconds

Speed time pi pf ∆d avg speed 0-5 25 15 10 ? 2 m/s 5-10 15 5 10 ? 0-5 25 15 10 ? 2 m/s 5-10 15 5 10 ? 10-15 5 -5 10 ?

Speed What equation was used to determine the speed of the car?

v = d / t Speed What equation was used to determine the speed of the car? v = d / t

Distance & Displacement Define Displacement.

Distance & Displacement Define Displacement. Give the equation for displacement.

Distance & Displacement Define Displacement. Give the equation for displacement. ∆d = df - di

What equation was used to determine the velocity of the car?

What equation was used to determine the velocity of the car? v = ∆d / ∆t

Velocity & Speed How is speed different from velocity?

Velocity & Speed How is speed different from velocity?