8.3 Quantities and units Flashcards
1
Q
mass symbol
A
kilograms : kg
2
Q
length/displacement (distance in a given direction) symbol
A
metres - m
3
Q
time symbol
A
seconds - s
4
Q
speed / velocity (speed in a given direction ) symbol
A
metres per second : m s ^-1
5
Q
acceleration symbol
A
metres per second per second m s ^ -2
6
Q
weight / force symbol
A
Newtons : N (=kg m s ^-2)
7
Q
what force pushes?
A
Thrust!
8
Q
what force pulls?
A
Tension!
