Skills For Physics Flashcards
1
Q
Si Units
A
Used to measure physical quantities
2
Q
IUPAC
A
International Unit of Pure and Applied Chemistry
3
Q
Seven Si Units
A
Length (metre m) Mass (kilogram kg) Times (second s) Electric current (ampere A) Temperature (kelvin K) Amount of substance (mole mol) Luminous intensity (candela cd)
4
Q
Formula for force
A
mass x acceleration (kg•m•s^-2) (newton N)
5
Q
From km•h to m•s you divide by…
A
3,6 (vice versa)
6
Q
Celcius to kelvin add…
A
273 (vice versa)
7
Q
What is rate
A
The mumber of times something happens over a period of time
8
Q
Accuracy versus Precision
A
Accuracy: how close a measurement is to the true value
Precision: How consistent results are when measurements are repeated
9
Q
Independant variable
A
Causes change in dependant variable
Only 1
10
Q
Dependant Variable
A
Factors which are measure as a result of the independant variable
(Can be more than 1)
11
Q
Fixed/controlled variable
A
Factors deliveratly kept constant
Can be more than 1
