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 8
Explain the difference between a fundamental and a derived quantity, giving one example of each.
Is temperature a fundamental or derived quantity?
What is the SI unit of area?
What is the SI unit of density?
A car travels 1000 metres in 50 seconds. What is its average speed in m/s?
A force of 10 N is applied to move a box 5 m. How much work is done?
A runner completes a 400 m lap in 50 seconds. What is the average speed in m/s?
If a box has a mass of 2 kg and a volume of 0.5 m³, what is its density in kg/m³?
Which of the following is a correct pair of physical quantity and its SI unit? (1) Mass - metre (2) Time - second (3) Force - joule (4) Length - kilogram
Which of the following is a fundamental physical quantity? (1) Length (2) Speed (3) Area (4) Volume
Which of the following is a scalar quantity? (1) Force (2) Velocity (3) Distance (4) Acceleration
Which of the following is a vector quantity? (1) Mass (2) Speed (3) Displacement (4) Distance
Fill in the blank: 1 kilometre = ________ metres.
Fill in the blank: 1 litre = ________ cubic centimetres (cm³).
Fill in the blank: 1 m³ = ________ litres.
Fill in the blank: The SI unit of length is the ________.
Is acceleration a derived quantity?
Is 'second' a base unit in the SI system?
Is the unit 'gram' an SI base unit?
True or False: 1 cm = 0.01 m.
