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What is work in physics?
- a)The result of an external force applied to a body or object, causing it to move
- b)The force exerted on an object multiplied by its displacement
- c)The capacity of a system or object to perform work
- d)The rate at which work is done or energy is consumed
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What is work in physics?a)The result of an external force applied to a...
Work in Physics
Work in physics refers to the transfer of energy that occurs when an external force is applied to an object, causing it to move. It is a fundamental concept in the field of physics and is closely related to the concepts of force, displacement, and energy.
Definition of Work
Work is defined as the product of the force applied to an object and the displacement of the object in the direction of the force. Mathematically, work (W) is given by the equation:
W = F * d * cosθ
Where:
- W represents work
- F represents the force applied to the object
- d represents the displacement of the object
- θ represents the angle between the force and the displacement vectors
Explanation of Option A
Option A states that work is the result of an external force applied to a body or object, causing it to move. This statement is correct because when a force is applied to an object and it undergoes a displacement in the direction of the force, work is said to be done on the object.
When work is done on an object, energy is transferred to or from the object, resulting in a change in its energy state. This change in energy state can manifest as either an increase or decrease in the object's kinetic energy, potential energy, or both.
Examples of Work
1. Pushing a cart: When you push a cart, you apply a force to it, causing it to move in the direction of the force. This results in work being done on the cart.
2. Lifting a weight: When you lift a weight, you exert an upward force on it, causing it to move against the force of gravity. This requires work to be done against the gravitational force.
3. Pushing a door: When you push a door to open it, you apply a force to it, causing it to rotate around its hinges. This rotation requires work to be done.
Conclusion
In conclusion, work in physics is the result of an external force applied to an object, causing it to move. It is defined as the product of the force applied to the object and the displacement of the object in the direction of the force. Work involves the transfer of energy and is an essential concept in understanding the behavior of objects in the field of physics.
Work in physics refers to the transfer of energy that occurs when an external force is applied to an object, causing it to move. It is a fundamental concept in the field of physics and is closely related to the concepts of force, displacement, and energy.
Definition of Work
Work is defined as the product of the force applied to an object and the displacement of the object in the direction of the force. Mathematically, work (W) is given by the equation:
W = F * d * cosθ
Where:
- W represents work
- F represents the force applied to the object
- d represents the displacement of the object
- θ represents the angle between the force and the displacement vectors
Explanation of Option A
Option A states that work is the result of an external force applied to a body or object, causing it to move. This statement is correct because when a force is applied to an object and it undergoes a displacement in the direction of the force, work is said to be done on the object.
When work is done on an object, energy is transferred to or from the object, resulting in a change in its energy state. This change in energy state can manifest as either an increase or decrease in the object's kinetic energy, potential energy, or both.
Examples of Work
1. Pushing a cart: When you push a cart, you apply a force to it, causing it to move in the direction of the force. This results in work being done on the cart.
2. Lifting a weight: When you lift a weight, you exert an upward force on it, causing it to move against the force of gravity. This requires work to be done against the gravitational force.
3. Pushing a door: When you push a door to open it, you apply a force to it, causing it to rotate around its hinges. This rotation requires work to be done.
Conclusion
In conclusion, work in physics is the result of an external force applied to an object, causing it to move. It is defined as the product of the force applied to the object and the displacement of the object in the direction of the force. Work involves the transfer of energy and is an essential concept in understanding the behavior of objects in the field of physics.
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What is work in physics?a)The result of an external force applied to a...
Work in physics is the result of an external force applied to a body or object, causing it to move. It involves the application of force and results in a displacement in the direction of the force.
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What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer?
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What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer? for Class 4 2025 is part of Class 4 preparation. The Question and answers have been prepared according to the Class 4 exam syllabus. Information about What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 4 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer?.
What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer? for Class 4 2025 is part of Class 4 preparation. The Question and answers have been prepared according to the Class 4 exam syllabus. Information about What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 4 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer?.
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What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of What is work in physics?a)The result of an external force applied to a body or object, causing it to moveb)The force exerted on an object multiplied by its displacementc)The capacity of a system or object to perform workd)The rate at which work is done or energy is consumedCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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