uncertainties

Question 1

What are the types of uncertainty

Answer 1

Random uncertainty

systematic uncertainty

Question 2

What is random uncertainty

Answer 2

1. uncertainty that affects reading at random

Question 3

What are causes of random uncertainty

Answer 3

1. Observer being less than perfect
2. The readability of the equipment
3. External effects on the observed item

Question 4

How can random uncertainty be reduced

Answer 4

1. Taking multiple readings and getting a mean

Question 5

What is systematic uncertainty

Answer 5

An uncertainty that occurs at each reading

Question 6

What are the causes of systematic uncertainty

Answer 6

1. The observer being less than perfect in the same way each time
2. An instrument with a zero offset uncertainty
3. An instrument that is improperly calibrated

Question 7

How to fix systematic uncertainty

Answer 7

Redesign whole experiment

Question 8

What is resolution meaning

Answer 8

Smallest change in the quantity being measured

Question 9

What is rule for getting percentage uncertainty

Answer 9

always add % uncertainty together afterwards to get it to work

Question 10

How to get % uncertainty when 2 quantities multiply or divide

Answer 10

find % uncertainty of each one.
eg. (uncertainty/the number) x 100 = % uncertainty

then do the same

then do times or divide for the numbers but ADD the uncertainties