Module 2 - Foundations of physics (SI Units)

Question 1

What are the 7 base units

Answer 1

1. Temperature (K) - Kelvin
2. Mass (Kg) -Kilogram
3. Length (m) - Metre
4. Time (s) - Second
5. Current (A) - Ampere
6. Amount of a Substance (mol) - Mole
7. Luminous Intensity (cd) -Candela

Question 2

What is the S.I. Base unit for momentum

Answer 2

kg ms⁻¹

Question 3

What is the S.I. Base unit for density

Answer 3

kgm ⁻³

Question 4

What is Unit Homogeneity

Answer 4

Using the units of values in an equation to derive their S.I Base Units.

Question 5

What are the prefixes and symbols listed in the spec

Answer 5

pico (p) x10⁻¹²
nano (n) x10⁻⁹
micro (μ) x10⁻⁶
milli (m) x10⁻³
centi (c) x10⁻²
deci (d) x10⁻¹
kilo (k) x10³
mega (M) x10⁶
giga (G) x10⁹
tera (T) x10¹²