Sci - Chapter 1

Question 1

What is Qualitative data?

Answer 1

Qualitative data is to visualise an unknown object or learn about its characteristics to describe it. (e.g., colour, sound, odour, texture & taste)

Question 2

What is Quantitative data?

Answer 2

Quantitative data measures the numerical quantities of an object.

Question 3

What is the SI unit of volume, mass, time, length and temp?

Answer 3

cubic metre (m3), kilograms (kg), seconds (s), metre (m) and kelvin (K).

Question 4

What is accurate?

Answer 4

Accurate is when the measurement of the reading is very close to or the same as the true value.

Question 5

What is zero error?

Answer 5

Zero error is a type of error which an instrument gives a non-zero reading when the measured quantity should be zero.

Question 6

What is parallax error?

Answer 6

Parallax error is introduced into a measurement when the marking on an instrument is viewed from the wrong angle.

Question 7

What is precise?

Answer 7

Precise is when the measurements taken has multiple readings very close to one another or the same.