Question : Which of the following options is correctly matched?
Option 1: Units of force – Joule, Horsepower, Torr
Option 2: Units of work done – Newton, Pascal, Bar
Option 3: Units of pressure – Pascal, Bar and Torr
Option 4: Units of volume – Kilogram, Gram, Metre
Correct Answer: Units of pressure – Pascal, Bar and Torr
Solution : The correct answer is Units of pressure – Pascal, Bar and Torr.
The SI unit of pressure is Pascal. The Bar is a unit of pressure commonly used in many countries, especially in Europe.1 Bar is equal to 100,000 Pascals. The Torr is a unit of pressure.1 Torr is defined as 1/760th of standard atmospheric pressure at sea level.
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Question : Which of the following is an INCORRECT match?
Option 1: Pressure – Pascal
Option 2: Volume – metre
Option 3: Force – Newton
Option 4: Work done – joule
Question : "Impulse" can be defined as:
Option 1: the force acting on a body for a very long time.
Option 2: the work done by a body for a short time.
Option 3: the force acting on a body for a short time.
Option 4: the temperature acting on a body for a short time.
Question : Power exerted by an object moving in a straight line is equal to force multiplied by ______.
Option 1: displacement
Option 2: velocity
Option 3: work
Option 4: acceleration
Question : Which of the following intermolecular forces is also called a London force?
Option 1: Dispersion forces
Option 2: Dipole-induced dipole forces
Option 3: Dipole-dipole forces
Option 4: Hydrogen bond forces
Question : Once a satellite has been launched into orbit, the only force governing its motion is the force of______________.
Option 1: friction
Option 2: elasticity
Option 3: gravity
Option 4: fuel driven
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