TOPIC ONE

Question 1

What is the multiple and symbol for Tera

Answer 1

10^12

T

Question 2

What is the multiple and symbol for giga?

Answer 2

10^9

G

Question 3

What is the multiple and symbol for Mega?

Answer 3

10^6

M

Question 4

What is the multiple and symbol for kilo?

Answer 4

10^3

k

Question 5

What is the multiple and symbol for centi?

Answer 5

10^-2

c

Question 6

What is the multiple and symbol for milli?

Answer 6

10^-3

m

Question 7

What is the multiple and symbol for micro?

Answer 7

10^-6

μ

Question 8

What is the multiple and symbol for nano?

Answer 8

10^-9

n

Question 9

What is the multiple and symbol for pico?

Answer 9

10^-12

p

Question 10

What is the multiple and symbol for femto?

Answer 10

10^-15

f

Question 11

What is the definition of resolution?

Answer 11

The smallest non-zero value that can be measured

Question 12

What is the definition of uncertainty?

Answer 12

The precision of a measurement due to the instrument used

Question 13

What is the definition of repeatability?

Answer 13

Being able to redo the experiment the same way and get the same results

Question 14

What is the definition of reproducibility?

Answer 14

Other people being able to use other equipment or techniques and get the same results

Question 15

What is the definition of accuracy?

Answer 15

The measurement closest to the true value

Question 16

What is the definition of precision?

Answer 16

Consistent measurements

Question 17

What is the definition of systematic error and examples?

Answer 17

One which follows a trend + results in readings that systematically differ from the true mean reading
I.e. calibration error, non-zero reading at the start, error in technique

Question 18

What is the definition of random error and examples?

Answer 18

One which is always present in data due to readings that vary randomly, with no recognisable trend or bias
I.e. could be caused by a faulty instrument, human error, poor technique

Question 19

What is absolute uncertainty?

Answer 19

The size of the range of values that the ‘true’ value lies

Question 20

What is fractional uncertainty?

Answer 20

Dividing the uncertainty by the value of the data

Question 21

What is percentage uncertainty?

Answer 21

Fractional uncertainty x 100

Question 22

How do you find uncertainty in the gradient?

Answer 22

percentage uncertainty = l best gradient - worst gradient l × 100%
———————————————
l best gradient l

Question 23

How do find uncertainty in the y intercept?

Answer 23

percentage uncertainty = l best y intercept - worst y intercept l × 100%
————————————————
l best y intercept l

Question 24

How do you combine uncertainties when two values are +/- together?

Answer 24

Uncertainties are added

Question 25

How do you combine uncertainties when a value is multiplied by a constant?

Answer 25

Uncertainties also multiply by constant

Question 26

How do you combine uncertainties when you x or / two values?

Answer 26

Add the Percentage uncertainties

Question 27

How do you combine uncertainties when the value is put to the power of n?

Answer 27

n x percentage uncertainty

Question 28

How do you estimate order of magnitude?

Answer 28

Calculate value and only give 10^n as answer