Jacaranda Page 194 Questions 1 -5
distance- is between point a and b is the length of path pulled out straight(depending on the path)
= to a magnitude and unit this is a SCALAR
Displacement: is the chance in place as the "crow's flys"
= to a magnitude, unit, and direction this is VECTOR
it is draw in the diagram with an arrow. the Head is where it finishes, the tail is where it begins.
It is drawn to scale, and direction.( Diagram now needs a compass or an up)
The unit and magnitude is written half way along.
Vector addition is more complex than Scalar.....
Exercise Draw the Vector C , A+B =C
A is 8 paces north, B is 6 paces west.
Exercise Vector D Sum of ( 3 m North, 5 m East, 5 m South, 7 m West)
Exercise Vector E (Sum 7 m West, 5m South, 3 m North, 5 m East)
How do you subtract vectors? ANS go the opposite way
Exercise what is A - B ? Hint A + (-B).
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- drhill
- I come from a Science family: My father Geoffrey Hill was Australia's first computer programmer on CSIRAC the fourth computer in the world. He is credited with invention of Computer music and the development of “Interprogram” a language before Basic. My PhD is in Atomic and Molecular Physics. I have researched the activated oxygen layer above the ozone layer, and 'Assigned' the world's smallest molecule. At the University of Toronto I researched high power UV lasers. I have specialized in automation in fibre optics. This developed into research in Machine Intellect and Robots. I have enjoyed work as an Explainer with Questacon and my time as a part-time soldier. I currently teach High School Science at Epping Boys’ High.