Physical Quantities and Units
Physics ⇒ Mechanics
Physical Quantities and Units starts at 6 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Physical Quantities and Units.
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See sample questions for grade 6
A car travels 100 meters in 5 seconds. What is its speed in m/s?
Explain the difference between a base unit and a derived unit in the SI system.
Is 'mass' a scalar or vector quantity?
What instrument is commonly used to measure length?
What is the physical quantity measured in newtons?
What is the SI unit of density?
What is the SI unit of pressure?
What is the SI unit of speed?
What is the SI unit of temperature?
What is the SI unit of volume?
A rectangular box has a length of 2 m, a width of 0.5 m, and a height of 0.4 m. What is its volume in cubic meters (m3)?
A runner completes a 400 meter lap in 80 seconds. Calculate the average speed of the runner in m/s.
A student measures the mass of an object as 2500 grams. Express this mass in kilograms.
Describe the difference between scalar and vector quantities, and give one example of each.
Explain why it is important to use standard units when measuring physical quantities.
