base units Flashcards
1
Q
name all the base units
A
temperature (kelvin,k)
time
mass
length (m)
current (a)
amount (moles,mol)
light intensity (candela,cd)
2
Q
what are the derived units for frequency(hz)
A
1/time period
s^-1
3
Q
what are the derived units for force (n)
A
force = kg x m/s^2
n = kg x m/s^2
4
Q
what are the derived units for pressure (pascal)
A
n/area
kg x s^-2 x m ^ -1
5
Q
what are the derived units for energy (j)/kinetic energy
A
1/2 x mass x v^2
kg x m2 x s^-2
6
Q
what are the derived units for power (watts)
A
energy/time
kg x m^2 x s^-3
7
Q
what are the derived units for charge (coulombs)
A
current x time
a x s
8
Q
what are the derived units for voltage
A
energy / charge
kgm^2s^-3 A
