Physical Quantities and Units
Physics ⇒ Mechanics
Physical Quantities and Units starts at 6 and continues till grade 12.
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See sample questions for grade 12
A block has a mass of 500 g. Express this mass in kilograms using scientific notation.
A car travels 100 km in 2 hours. What is its average speed in m/s?
A force of 10 N acts on a mass of 2 kg. What is the acceleration produced?
A force of 20 N is applied to move a box 5 m. Calculate the work done.
A student measures the length of a rod as 2.50 m. If the actual length is 2.47 m, what is the percentage error?
Define dimensional analysis.
Define the term 'physical quantity'.
Explain the difference between fundamental and derived units with examples.
Express 1 joule in terms of base SI units.
Express 1 newton in terms of base SI units.
State the SI unit of force.
What is the dimensional formula for pressure?
What is the dimensional formula for work?
