momentum, impact and impulse

Question 1

difference between a scalar and vector quantity?

Answer 1

scalar quantity is described by magnitude
vector quantity is described by magnitude and direction
- E.g. distance is scalar and displacement is vector

Question 2

whats momentum and how do you work it out?

Answer 2

the amount of motion and object posesses.
MOMENTUM = MASS X VELOCITY

Question 3

whats an impulse and how do you work it out?

Answer 3

the length of time a force is applied to an object or body
- IMPULSE = FORCE X TIME and it is eaqual to a change in momentum

Question 4

whats an impact?

Answer 4

is a high force or shock applied over a short period of time when two bodies collide.
- impulses can be shown on a force-time graph

Question 5

which of these are scalar and which of these are vectors?
Distance / Displacement
Mass / Weight
Velocity / Speed
Momentum / Impulse

Answer 5

The vectors are : displacement , weight , velocity , Momentum and impulse
The scalar are : distance, mass and speed