Remember - Flashcards
1
Q
Decreasing acceleration
A
- a
2
Q
Increasing acceleration
A
+a
3
Q
Things to remember in equations
A
Always take into account prefixes (kg will stay the same)
Also if materials are different
4
Q
Things to remember in answer
A
Unit, direction
5
Q
Force over time unit
A
Ns
6
Q
Impulse unit
A
Kgms^-1
7
Q
On sketch graphs
A
Draw dotted lines to show max and minimum points
8
Q
Definition of linear momentum
A
In the absence of external forces, the total momentum before a collision is equal to the total momentum after the collision
9
Q
Decimal places when calculating error
A
Must be exactly the same in answer as in question
