Physical quantities and measurement Quiz - ICSE Class 7 Science
Free practice quiz: Physical quantities and measurement (ICSE Class 7 Science). 44 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
This ICSE Class 7 Science practice quiz has 44 multiple-choice questions on Physical quantities and measurement, and 44 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.
Start quiz: 44 questions, freeSample questions
Which of the following is NOT a fundamental unit in the SI system?
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Answer: D. Newton
The Newton (N) is a derived unit, representing the force required to accelerate a mass of one kilogram at a rate of one meter per second squared (kg·m/s²). Meter, kilogram, and second are fundamental SI units.
Which of the following is a vector quantity?
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Answer: C. Displacement
Displacement is the change in position of an object and has both magnitude and direction. Speed, distance, and time are scalar quantities.
Which quantity is defined as the rate of change of velocity?
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Answer: B. Acceleration
Acceleration is the rate at which an object's velocity changes. It is a vector quantity.
What is the CGS unit of force?
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Answer: B. Dyne
The Dyne is the unit of force in the centimetre-gram-second (CGS) system. 1 Newton = 10⁵ Dynes.
Which SI prefix represents 10⁻⁹?
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Answer: B. Nano
The SI prefix 'nano-' represents a factor of 10⁻⁹.
More questions in this quiz
Answers and explanations are in the full quiz.
- What is the SI unit of luminous intensity?
- Which instrument is most suitable for measuring the diameter of a thin wire?
- The least count of a standard meter scale is typically:
- What does the zero error in a measuring instrument indicate?
- A positive zero error means that the instrument reads:
- How is a negative zero error corrected in a measurement?
- Which of the following is a scalar quantity?
- If an object moves from point A to point B and then back to point A, its total distance covered is 20 meters. What is its displacement?
- Which unit is derived from the fundamental units of mass, length, and time?
- The SI unit of pressure is:
- What is the primary function of a stopwatch?
- A micrometer screw gauge has a least count of:
- Random errors in a measurement are:
- When using a measuring tape to measure a length, the observer's eye level should be:
- The SI unit of luminous flux is:
- A spring balance measures:
- What is the unit of power in the SI system?
- Which of the following measurements has the most significant figures?
- A measurement of 5.23 cm has how many significant figures?
- When multiplying or dividing measurements, the result should be rounded to the:
- What is the SI unit of electric current?
- Which instrument is used to measure atmospheric pressure?
- The unit of momentum is:
- If a measurement has a small random error, it means the measurement is:
- A measurement is considered accurate if it is:
- Which instrument can measure the thickness of a paper sheet most accurately?
- The SI unit of temperature is:
- Which of the following is a derived unit?
- When taking a reading from a ruler, the eye should be directly over the mark to avoid:
- The SI unit of electric charge is:
- Which quantity is defined as mass per unit volume?
- A pendulum completes 10 oscillations in 20 seconds. What is its time period?
- What is the unit of frequency in the SI system?
- If the frequency of oscillation is 50 Hz, what is the time period?
- Which instrument is used to measure the density of liquids?
- The SI prefix 'kilo-' represents a factor of:
- What is the SI unit of energy?
- Which of the following scales is an absolute temperature scale?
- Which instrument is used to measure the force exerted by a spring?
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