Unit Conversion & Significant Figures

Question 1

Which unit is concerned with the amount of substance

Answer 1

Mole

Question 2

Luminous intensity

Answer 2

Candela

Question 3

Formula for Speed

Answer 3

M / S

Meter divided by second

Distance ÷ Time

Question 4

Acceleration formula

Answer 4

M / S²

Meter ÷ Time²

Question 5

Force’s Formula

What is force measured in?

Answer 5

N = kg × m/ s²

Newtons = Mass × length ÷ time²

Newtons

Question 6

Formula for Work

What is the unit of measurement for Work

Answer 6

J = kg × m² / s²

Joules = Mass × Length² ÷ Time²

Joules

Question 7

Power’s formula

Unit of measurement for Power

Answer 7

W = J ÷ S = kg × m² ÷ s³

Watt = Joules ÷ Time = Mass × length² ÷ time³

Question 8

Significant figure rules

1. All non zeros are Significant

True or False

Answer 8

True

Question 9

Significant figure Rules

3. All zeros on the Right of the decmil point and to the left of a non zero digit is Never significant. Exp. 0.00789 Contains 3 significant figures

Answer 9

True

Question 10

Significant figure rules

2. All zeros between two non-zero digits are significant. Exp. 108.0097

True or False

Answer 10

True

Question 11

All zeros on the right of a Decmil point are significant, only if, a non-zero digit does not follow.

Exp. 20.00 has 4 significant figures

True or False

Answer 11

True

Question 12

All zeros to the right of the last non-zero digit, after the decmil point are significant.

Exp. 0.000789000 contains 6 significant figures

True or False

Answer 12

True

Question 13

All zeros that are on the right of the last non-zero digit are significant if they come from a measurement

Exp. 1090m contains 4 significant figures

True or False

Answer 13

True