Quantities, Symbols and Units

Question 1

Prefix kilo- (k-)

Answer 1

1000 or 10³

Question 2

Prefix mega- (M-)

Answer 2

1000000 or 10⁶

Question 3

Length

Answer 3

l, h …
kilometres, metres, centimetres, millimetres

Question 4

Area

Answer 4

A
metres², centimetres²

Question 5

Volume

Answer 5

V
metres³, centimetres³

Question 5

Weight

Answer 5

W
Newtons

Question 6

Mass

Answer 6

m, M
kilograms, grams, milligrams`

Question 7

Time

Answer 7

t
hours, minutes, seconds, milliseconds

Question 8

Density

Answer 8

ρ
grams/centimetre³, kilograms/metre³

Question 9

Speed

Answer 9

u, v
kilometres/hour, metres/second, centimetres/second

Question 10

Acceleration

Answer 10

a
metres/second²

Question 11

Acceleration of free fall

Answer 11

g
metres/second²

Question 12

Force

Answer 12

F
Newtons

Question 13

Gravitational field strength

Answer 13

g
Newtons/kilogram

Question 14

Moment of a force

Answer 14

-
Newton metres

Question 15

Work done

Answer 15

W, E
Joules, kilojoules, megajoules

Question 16

Energy

Answer 16

E
Joules, kilojoules, megajoules

Question 17

Power

Answer 17

P
Watts, kilowatts, megawatts

Question 18

Pressure

Answer 18

p
Newtons/metre², Pascals

Question 19

Temperature

Answer 19

θ, T
°Celsius

Question 20

Frequency

Answer 20

f
Hertz, kilohertz

Question 21

Wavelength

Answer 21

λ
metres, centimetres

Question 22

Focal length

Answer 22

f
centimetres

Question 23

Angle of incidence

Answer 23

i
degrees (ᵒ)