Units Flashcards
What is the standard unit and symbol for **Force **
Newton (N)
What is the standard unit and symbol for mass
Symbol (m)
Standard unit (kg)
Standard unit and symbol for time
(t)
seconds (s)
Standard unit and symbol for
current
(I)
amps (A)
Standard unit and symbol for acceleration
(a)
m/s/s
Standard unit and symbol for velocity
(v)
m/s
Standard unit and symbol for Energy
(j)
Joule
Standard unit and symbol for power
(w)
watt
When the prefix (k) is used it means
how many metres in 15 km ?
kilo
x 10^3
15 km has 15 x 10^3 metres
When the prefix (M) is used it means
How many watts in a 5 Mw
Mega
x 10^6
in 5 Mw there is 5 x 10^6 watts
When the prefix (G) is used it means
How many joules are there in 15Gj ?
Giga
x10^9
In 15 Gj there re 25 x 10^9 j
When the prefix (m) is used it means
how many metres are there in 20mm?
milli
x10^-3
There are 20 x 10^3 metres in 20 mm
When the prefix (µ ) is used it means
how many metres in 30 µm?
micro
x 10 ^-6
there are 30 x 10^-6 metres in 30µm
When the prefix (n ) is used it means
how many metres in 200nm?
nano
x 10 ^-9
there are 200 x 10^-9 metres in 200nm
