JAMB Exam > JAMB Videos > Physics for JAMB > Scalar Quantities
Scalar Quantities Video Lecture | Physics for JAMB
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261 videos|249 docs|232 tests
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FAQs on Scalar Quantities Video Lecture - Physics for JAMB
| 1. What are scalar quantities in physics? |  |
Ans. Scalar quantities in physics are physical quantities that have magnitude but do not have any direction associated with them. Examples of scalar quantities include mass, temperature, time, and distance.
| 2. How are scalar quantities different from vector quantities? | |
Ans. Scalar quantities differ from vector quantities in that they do not have direction, whereas vector quantities have both magnitude and direction. For example, while speed is a scalar quantity, velocity is a vector quantity as it includes both speed and direction.
| 3. Can scalar quantities be negative? | |
Ans. Yes, scalar quantities can be negative. Negative values indicate a decrease or opposite direction compared to a positive value. For instance, if a temperature is recorded as -10 degrees Celsius, it means it is colder than 0 degrees Celsius.
| 4. Is time a scalar quantity? | |
Ans. Yes, time is considered a scalar quantity. It only has magnitude and is not associated with any direction. Time can be measured in seconds, minutes, hours, etc., without any reference to a specific direction.
| 5. How can scalar quantities be measured? | |
Ans. Scalar quantities can be measured using appropriate instruments or tools. For example, mass can be measured using a weighing scale, temperature can be measured using a thermometer, and time can be measured using a clock or a stopwatch. The measurements obtained are numerical values without any associated direction.
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Oct 23, 2024 Last updated |
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