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Pick out the scalar quantity from the followings.
- a)Force
- b)Acceleration
- c)Work
- d)Velocity
Correct answer is option 'C'. Can you explain this answer?
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Pick out the scalar quantity from the followings.a)Forceb)Acceleration...
A scalar quantity is a one-dimensional quantity consisting of only magnitude and devoid of direction.
- Work is an example of scalar quantity as it has no precise direction attached to it making it a one-dimensional quantity.
- Other examples of scalar quantities include time, volume, speed, mass, temperature, distance, entropy, energy etc.
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Pick out the scalar quantity from the followings.a)Forceb)Acceleration...
Understanding Scalar and Vector Quantities
In physics, quantities can be classified as scalar or vector. Scalar quantities have magnitude only, while vector quantities have both magnitude and direction.
Scalar Quantity: Work
- Definition: Work is defined as the product of force and displacement in the direction of the force. It is a measure of energy transfer.
- Characteristics:
- Only requires magnitude.
- Example: 50 Joules of work done.
Vector Quantities
- Force:
- Definition: Force is an interaction that causes an object to change its motion, described by both magnitude and direction.
- Example: A force of 10 Newtons to the east.
- Acceleration:
- Definition: Acceleration is the rate of change of velocity over time, which also includes direction.
- Example: 5 meters per second squared upward.
- Velocity:
- Definition: Velocity is the speed of an object in a specific direction.
- Example: 60 kilometers per hour north.
Conclusion
In summary, among the options provided, only work (option C) is a scalar quantity because it does not have a directional component, whereas force, acceleration, and velocity are all vector quantities due to their dependence on direction. Understanding these distinctions is crucial in the study of physics and applications in real-world scenarios.
In physics, quantities can be classified as scalar or vector. Scalar quantities have magnitude only, while vector quantities have both magnitude and direction.
Scalar Quantity: Work
- Definition: Work is defined as the product of force and displacement in the direction of the force. It is a measure of energy transfer.
- Characteristics:
- Only requires magnitude.
- Example: 50 Joules of work done.
Vector Quantities
- Force:
- Definition: Force is an interaction that causes an object to change its motion, described by both magnitude and direction.
- Example: A force of 10 Newtons to the east.
- Acceleration:
- Definition: Acceleration is the rate of change of velocity over time, which also includes direction.
- Example: 5 meters per second squared upward.
- Velocity:
- Definition: Velocity is the speed of an object in a specific direction.
- Example: 60 kilometers per hour north.
Conclusion
In summary, among the options provided, only work (option C) is a scalar quantity because it does not have a directional component, whereas force, acceleration, and velocity are all vector quantities due to their dependence on direction. Understanding these distinctions is crucial in the study of physics and applications in real-world scenarios.
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Pick out the scalar quantity from the followings.a)Forceb)Accelerationc)Workd)VelocityCorrect answer is option 'C'. Can you explain this answer?
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