Analogue and digital technologies, types of errors

Question 1

What is technology in science?

Answer 1

technologies in science are measurable instruments that are used to obtain data, which expand our knowlodge or objective.

Question 2

define analogue technology and provide examples

Answer 2

analogue technology are instruments that does not process numbers or measurements such as metric ruler

Question 3

define digital technology and provide examples

Answer 3

a digital device that collects data and is digitally stored or displayed such as a stopwatch

Question 4

List advantages and disadvantages of analogue technology

Answer 4

advantages:
- lower cost
- Does Not require batteries and digital systems
- Does Not require bluetooth or wifi

disadvantages:
- Difficulty reading scales
- May be slow to changes
- Data range does not include decimal places

Question 5

List advantages and disadvantages of digital technology

Answer 5

advantages:
- Easier to read
- Responds faster to changes
- Immediate recording of information

disadvantages:
- More expensive
- Sometimes requires calibration
- Requires batteries or power source

Question 6

Explain how random error occurs

Answer 6

Random errors occur by chance which usually does not happen all the time. For eg, the wind affecting an experiment with the flames.
(environmental fluctuance)

Question 7

Explain how systematic error occurs

Answer 7

An error that occurs from the instruments calibration (wrong units)

Question 8

Explain how parallax error occurs

Answer 8

it occurs due to incorrect positioning of the eyes while taking a reading on a measuring scale

Question 9

Explain how Gross error/ blunders
occurs

Answer 9

When the investigator is careless about the experiment, which can result in lack of fairness

Question 10

What is accuracy in an experiment?

Answer 10

a degree which the measurement matches the expected value

Question 11

What is precision

Answer 11

the closeness of two or more measurements to each other.