Ship floating on nothing! :: Physikshow Uni Bonn

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Sulfur hexafluoride is more dense
then the surrounding air

When physicists study motion they study
displacement not distance.

Video Instruction

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C. Displacement - distance & direction from start to finish

1) Examples

Displacement?

1 m up

Displacement?

3 m Right

(Start to finish)

Distance = 7 meters

Displacement =

5 m N of E

2) Displacement always has ...

Magnitude

(a number)

..and direction

a) Examples

• 5m East
• 7m upward
• + 17 m

b) Positive and Negative Signs also show direction

+ Usually up, right, north, east, forward

- Usually down, left, south, west, backwards

c) Symbol for displacement: d

Summary Review

At what point is
the displacement:

1) greatest?
2) zero?
3) equal to distance?

4) What is the displacement at C?

1) B

2) At the start

3) Any point between
start and A

Displacement at C is

4 meters down

Velocity
AP