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 9
A box has a mass of 2 kg and a volume of 0.5 m³. What is its density in kg/m³?
A car travels 1000 m in 50 s. What is its average speed in m/s?
A force of 10 N is applied to move an object 2 m. How much work is done?
Convert 5 kilometres to metres.
Explain the difference between fundamental and derived quantities, giving one example of each.
A box has a mass of 2 kg and a volume of 0.5 m³. What is its density in kg/m³?
A car travels 1000 m in 50 s. What is its average speed in m/s?
A force of 10 N is applied to move an object 2 m. How much work is done?
Which of the following is a derived unit? (1) Metre (2) Kilogram (3) Newton (4) Second
Which of the following is a fundamental physical quantity? (1) Length (2) Speed (3) Area (4) Volume
Which of the following is a fundamental unit? (1) Newton (2) Joule (3) Second (4) Watt
Which of the following is a scalar quantity? (1) Force (2) Displacement (3) Speed (4) Velocity
Fill in the blank: 1 kilogram = ________ grams.
Fill in the blank: The SI unit of acceleration is ________.
Fill in the blank: The SI unit of electric charge is the ________.
Fill in the blank: The SI unit of frequency is ________.
State whether the following statement is true or false: The SI unit of energy is watt.
State whether the following statement is true or false: The SI unit of length is centimetre.
State whether the following statement is true or false: The SI unit of temperature is kelvin.
State whether the following statement is true or false: The SI unit of temperature is the degree Celsius.
