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Physics I
Vectors
| Question | Answer |
|---|---|
| Given a vector V at an angle, you can find? | x and y components |
| V(x)= | Vcos@ |
| V(y)= | Vsin@ |
| Hypotenuse of right triangle has to be ______ than _______ but _______ than sum of leg. | has to be BIGGER than EITHER LEGS but LESS than sum of leg |
| List Vector quantity | displacement, velocity, acceleration, force, momentum, electric field, megnetic field, and weight |
| Weight is | force of gravity |
| Weight is scalar or vector? | vector |
| Mass is scalar or vector? | scalar |
| Vector multiplication has two forms? | scalar and vector |
| Scalar multiplication is | DOT product (A dot B = AB cos@) |
| In dot product, smaller angle _______ their dot product | greater |
| Vector multiplication is | (A X B = AB sin@ n) n is unit vector perpendicular between 2 vectors,2 vectors multiplies to produce 3rd vector perpendicular to both original vector |
| right hand rule (cross product) | curl fingers via small angle |
| curl clockwise are in or out of page | into the page |
| curl counter-clockwise are in or out of page | out of the page |
| Vector Leftward direction, below x axis has | negative magnitude |
| Vector Rightward direction, above x axis has | positive magnitude |
Created by:
jojussang
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