Physics MCQ: Identifying Force as Not a Scalar Quantity
The question asks to identify which quantity listed is not scalar. This requires distinguishing between scalar and vector quantities.
Understanding Scalar and Vector Quantities
- Scalar Quantity: A quantity that has only magnitude (size). Examples include distance, speed, and time.
- Vector Quantity: A quantity that has both magnitude and direction. Examples include displacement, velocity, and force.
Analysis of Options
Let's analyze each option provided:
- Time: Measured solely by its magnitude (e.g., 30 seconds). Time is a scalar quantity.
- Speed: Represents the rate of motion, defined by magnitude only (e.g., 10 m/s). Speed is a scalar quantity.
- Force: Requires both magnitude (e.g., 5 Newtons) and a direction (e.g., downwards) to be fully described. Force is a vector quantity.
- Distance: Represents the total length of the path covered, regardless of direction (e.g., 5 kilometers). Distance is a scalar quantity.
Conclusion
From the analysis, Force is the only quantity that possesses both magnitude and direction, classifying it as a vector quantity. Therefore, Force is NOT a scalar quantity.
Similar Questions
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- The SI unit of 'magnetic flux' is:
- The axis of the earth is inclined to the plane of ecliptic at an angle of:
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Solar energy is globally measured in the unit of KWh. The physical quantity corresponding to the unit KWh is _____________.
Important Questions from Physical Quantities
Which instrument is used to measure the intensity of light produced by an unknown source in terms of a standard source?
With what do you divide thrust in a liquid to obtain the value of pressure?
Which of the following is a vector quantity?
A. Time
B. Temperature
C. Distance
D. Velocity
Which of the following is a scalar quantity?
Pressure is measured in terms of
A. Mass & Density
B. Work done
C. Force and Area
D. Force and Distance
