p6

Question 1

is any attribute of matter that can be measured or quantified.

Answer 1

physical quantity

Question 2

Finding out the size, amount or degree (of something) by comparing it with a standard

Answer 2

measurement

Question 3

Uses a set of specified units

Answer 3

system of measurement

Question 4

two of the most common system of measurement

Answer 4

Metric (SI- Systeme Internationale d’ Unites)

British System

Question 5

is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors.

Answer 5

unit conversion

Question 6

is used to change the units of a measured quantity without changing its value.

Answer 6

conversion factor

Question 7

(also referred to as scientific form or standard index form, or standard form in the UK) is a way of expressing numbers that are too big or too small to be conveniently written in decimal form.

Answer 7

scientific notation

Question 8

refers to the closeness of a measured value to a standard or known value.

Answer 8

accuracy

Question 9

refers to the closeness of two or more measurements to each other.

Answer 9

precision

Question 10

are physical quantities that can be described by both magnitude and direction.

Answer 10

vectors

Question 11

are physical quantities that can be described by magnitudes only.

Answer 11

scalars

Question 12

is a single vector that is the result of adding
two or more vectors.

Answer 12

resultant or net vector

Question 13

two methods of combining vectors

Answer 13

graphical and component method