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Test: General Physics - UPSC MCQ


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10 Questions MCQ Test - Test: General Physics

Test: General Physics for UPSC 2024 is part of UPSC preparation. The Test: General Physics questions and answers have been prepared according to the UPSC exam syllabus.The Test: General Physics MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: General Physics below.
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Test: General Physics - Question 1
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What is the SI unit of speed?

Detailed Solution for Test: General Physics - Question 1
The SI unit of speed is "Meter/Second." Speed is defined as the rate at which an object covers distance per unit of time. In SI units, it is measured in meters per second (m/s). This unit represents how many meters an object travels in one second.
Test: General Physics - Question 2
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According to Newton's Third Law of Motion, what happens when body A exerts a force on body B?

Detailed Solution for Test: General Physics - Question 2
According to Newton's Third Law of Motion, "To every action, there is an equal and opposite reaction." This means that when body A exerts a force on body B, body B exerts an equal and opposite force on body A along the same line of action. This law explains interactions between objects and how forces are always mutual and in opposite directions.
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Test: General Physics - Question 3
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Which of the following is a vector quantity?

Detailed Solution for Test: General Physics - Question 3
Force is a vector quantity because it has both magnitude and direction. It is represented by an arrow indicating the direction of the force, and the length of the arrow represents the magnitude of the force. In contrast, scalar quantities like mass, time, and density have only magnitude without a specific direction.
Test: General Physics - Question 4
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Which law of motion states that "The rate of change of momentum of a body is proportional to the applied force and takes place in the direction in which the force acts"?
Detailed Solution for Test: General Physics - Question 4
Newton's Second Law of Motion states that "The rate of change of momentum of a body is proportional to the applied force and takes place in the direction in which the force acts." This law is expressed mathematically as F = ma, where F is the force, m is the mass, and a is the acceleration.
Test: General Physics - Question 5
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What is the SI unit of pressure?
Detailed Solution for Test: General Physics - Question 5
The SI unit of pressure is the "Pascal" (Pa). Pressure is defined as a force acting per unit area, and the Pascal represents one Newton of force per square meter. It is used to measure various pressures, including atmospheric pressure and pressure in fluid systems.
Test: General Physics - Question 6
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What is the unit of linear momentum?
Detailed Solution for Test: General Physics - Question 6
The unit of linear momentum is "Kilogram-Meter/Second" (kgm/s). Linear momentum is calculated as the product of an object's mass and its linear velocity. It measures the motion of an object in a straight line and is used to analyze collisions and motion.
Test: General Physics - Question 7
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Which of the following is an example of a scalar quantity?
Detailed Solution for Test: General Physics - Question 7
Temperature is a scalar quantity because it has only magnitude and no specific direction. Scalar quantities are described solely by their magnitude, and temperature is a measure of the average kinetic energy of particles in a substance.
Test: General Physics - Question 8
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What is the property of all material bodies due to which they naturally tend to continue in a state of rest or of uniform linear motion?
Detailed Solution for Test: General Physics - Question 8
The property of all material bodies due to which they naturally tend to continue in a state of rest or of uniform linear motion is called "Inertia." Inertia is the resistance of an object to changes in its state of motion and is measured by its mass.
Test: General Physics - Question 9
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What type of force opposes the relative motion between two surfaces in contact with each other?
Detailed Solution for Test: General Physics - Question 9
The force that opposes the relative motion between two surfaces in contact with each other is known as "Frictional Force." Friction is a force that acts to resist the sliding or rolling motion of objects when they are in contact with each other.
Test: General Physics - Question 10
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What is the pressure in a given region of space when all the fluid, which is the source of pressure, has been removed from that region?
Detailed Solution for Test: General Physics - Question 10
When all the fluid, which is the source of pressure, has been removed from a region of space, the pressure in that region is referred to as "Zero Pressure." An example of this is a perfect vacuum, which has no fluid or matter to exert pressure.
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