Chap 1: Measurements

Question 1

Scalar quantities:

Answer 1

Physical quantities that can be represented by a magnitude only.

Question 2

● Vector quantities:

Answer 2

Physical quantities that possess a magnitude and a direction in space.

Question 3

● Systematic error:

Answer 3

Leads to readings that are consistently more or consistently less than the true value.

Question 4

● Random error:

Answer 4

Gives rise to a scatter of readings about a mean value.

Question 5

● Accuracy:

Answer 5

A measure of how close a reading or the average of a set of readings is to the true value.

Question 6

● Precision:

Answer 6

A measure of how small the spread of repeated readings about the average value