M02: Foundations of Physics

Question 1

State the base SI units and their quantities

Answer 1

• metre, m (Distance)
• kilogram, kg (Mass)
• second, s (Time)
• ampère, A (Electric Current)
• kelvin, K (Temperature)
• mole, mol (Amount of substance)

Question 2

Giga (G)

Answer 2

10^(9)

Question 3

10^(-3)

Answer 3

milli (m)

Question 4

kilo (k)

Answer 4

10^(3)

Question 5

10^(-12)

Answer 5

pico (p)

Question 6

10^(12)

Answer 6

tera (T)

Question 7

micro (μ)

Answer 7

10^(-6)

Question 8

10^(-2)

Answer 8

centi (c)

Question 9

femto (f)

Answer 9

10^(-15)

Question 10

10^(6)

Answer 10

mega (M)

Question 11

nano

Answer 11

10^(-9)

Question 12

peta (P)

Answer 12

10^(15)

Question 13

10^(-1)

Answer 13

deci (d)

Question 14

EQ: Average Speed

Answer 14

s = d/t
s - average speed (ms^(-1))
d - distance travelled (m)
t - time taken (s)

Question 15

What are the base SI units of Force?

Answer 15

force (N) - kgms^(-2)

Question 16

What are the base SI units of Pressure?

Answer 16

Pressure (Pa) - Nm^(-2) - kg*m^(-1) *s^(-2)

Question 17

What are the base SI units of Energy or Work Done?

Answer 17

Work (J) - Nm - kg*m^(2) *s^(-2)

Question 18

What are the base SI units of Power?

Answer 18

Power (W) - Js^(-1) - kgm^(2) *s^(-3)

Question 19

What are the base SI units of Electric Charge?

Answer 19

Charge (C) - As

Question 20

What are the base SI units of Electric Potential Difference?

Answer 20

P.d. (V) - JC^(-1) - kgm^(2) *s^(-1) *A

Question 21

What are the base SI units of Electric Resistance?

Answer 21

Resistance (Ω) - VA^(-1) - kgm^(2) *s^(-1)

Question 22

What are the base SI units of Frequency?

Answer 22

Frequency (Hz) - S^(-1)

Question 23

How can temperature in degrees celsius be converted into Kelvin?

Answer 23

add 273.

Question 24

What is a scalar quantity?

Answer 24

Scalar Quantities have magnitude only