Topic 1 - Key concepts of physics

Question 1

What is the SI unit for length?

Answer 1

metres (m)

Question 2

What is the SI unit for weight?

Answer 2

kilograms (kg)

Question 3

What is the SI unit for time?

Answer 3

seconds (s)

Question 4

What is the SI unit for electrical current?

Answer 4

amperes (A)

Question 5

What is the SI unit for temperature?

Answer 5

kelvin (K)

Question 6

What is the SI unit for concentration?

Answer 6

moles (mol)

Question 7

Order the unit prefixes from giga (G) to nano (n) including what they are in standard form

Answer 7

giga (g) = 10^9
mega (M) = 10^6
kilo (k) = 1000 (10^3)
deci (d) = 0.1 (10^-1)
centi (c) = 0.01 (10^-2)
milli (m) = 0.001 (10^-3)
micro (µ) = 10^-6
nano (n) = 10^-9