Basics of Physics

Question 1

7 base units

Answer 1

Metre (m)
Kilogram (Kg)
Second (s)
Ampere (A)
Kelvin (K)
Candela (Cd)
Moles (mol)

Question 2

Resolution

Answer 2

The smallest detectable change in input
(like 1mm on a standard ruler)

Question 3

Sensitivity

Answer 3

The ratio of output to input
(Like change in p.d when temp increases by 1 degree celcius)

Question 4

Stability

Answer 4

The extent to which repeated measurements give the same result

Question 5

Response time

Answer 5

The time interval between change in input and the corresponding output

Question 6

Zero error

Answer 6

The output for an input of 0 is not 0

Question 7

Noise

Answer 7

Variations (possibly random) superimposed on a signal

Question 8

Calibration

Answer 8

Determining the relationship between output and the true input value

Question 9

Accuracy

Answer 9

How close a measurement result is to the true value, the closer the value is the more accurate

Question 10

Precision

Answer 10

How close the repeated values are to each other, the closer the values the more precise