Why does this boat float?

Ship floating on nothing! :: Physikshow Uni Bonn

 

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Sulfur hexafluoride is more dense
 then the surrounding air

 

 

 

B. Displacement - distance & direction from start to finish

 

1) Examples

 

 

 

 

 

Distance = 7 meters

 

Displacement = 5 m N of E
 


 

  

2) Displacement always has ...

 

 

 

Magnitude

(a number)
 

..and direction

 

 

Displacement?

 

 

 

 

1 m up

 

 

 

 

 

Displacement?

 

 

 

 

3 m Right

(Start to finish)

 

 

 

 

 

 

a) Examples

• 5m East
• 7m upward
• + 17m

 


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