Physical quantities and measurement accuracy
Answers are for parents and teachers.
1
If 100 sheets of a notebook are 12 mm thick, how thick is one sheet in mm?
0.12 mm
2
How many minutes are 2 hours 30 minutes?
150
3
How many kilograms is 3500 g?
3.5 kg
4
A desk was measured three times: 118 cm, 120 cm, 119 cm. What is the average length in cm?
119
5
Name the 7 SI base units.
Metre, kilogram, second, ampere, kelvin, candela, mole.