(1.1) - Use of SI Units & Their Prefixes

Question 1

s(1.1.1) SI Base Unit and Symbol of

Mass

Answer 1

Kilogram, kg

Question 2

(1.1.1) SI Base Unit and Symbol of

Length

Answer 2

Metre, m

Question 3

(1.1.1) SI Base Unit and Symbol of

Time

Answer 3

Second, s

Question 4

(1.1.1) SI Base Unit and Symbol of

Current

Answer 4

Ampere, A

Question 5

(1.1.1) SI Base Unit and Symbol of

Temperature

Answer 5

Kelvin, K

Question 6

(1.1.1) SI Base Unit and Symbol of

Amount of Substance

Answer 6

Mole, mol

Question 7

(1.1.1) SI Base Unit and Symbol of

Force

Answer 7

Newton(N), kg ms^-2

Question 8

(1.1.1) SI Base Unit and Symbol of

Energy

Answer 8

Joules(J), kgm^2s^-2

Question 9

(1.1.1) SI Base Unit and Symbol of

Pressure

Answer 9

Pascal(Pa), kgm^-1s^-2

Question 10

(1.1.2)

tera, T

Answer 10

X10^12

Question 11

(1.1.2)

giga, G

Answer 11

X10^9

Question 12

(1.1.2)

mega, M

Answer 12

X10^6

Question 13

(1.1.2)

kilo, k

Answer 13

X10^3

Question 14

(1.1.2)

centi, c

Answer 14

X10^-2

Question 15

(1.1.2)

milli, m

Answer 15

X10^-3

Question 16

(1.1.2)

micro, μ

Answer 16

X10^-6

Question 17

(1.1.2)

nano, n

Answer 17

X10^-9

Question 18

(1.1.2)

pico, p

Answer 18

X10^-12

Question 19

(1.1.2)

femto, f

Answer 19

X10^-15

Question 20

(1.1.2) Common Unit Conversions

Joules -> Electronvolts

Answer 20

Divide by the charge of an electron (1.6X10^-19)

Question 21

(1.1.2) Common Unit Conversions

Equation for kilowatt-hours

Answer 21

1. 1kW h = 3600 kW s
2. 3600kW s = 3600000 W s
3. 3600000 W s = 3600000 J

Question 22

(1.1.2) Common Unit Conversions

Joules -> kilowatt-hours

Answer 22

Divide by (how many seconds in an hour (3600) X kilo (10^3))
= Divide by 3.6X10^6