Podcast
Questions and Answers
Which of the following best describes a scalar quantity?
Which of the following best describes a scalar quantity?
- A quantity defined by both magnitude and direction
- A quantity that can change based on location
- A quantity defined only by magnitude (correct)
- A quantity that represents a point in space
What is the unit of measurement for distance?
What is the unit of measurement for distance?
- Meter (correct)
- Newton
- Kilogram
- Second
What is the formula for speed?
What is the formula for speed?
- Speed = Distance - Time
- Speed = Distance + Time
- Speed = Distance ÷ Time (correct)
- Speed = Mass × Time
Which of the following is an example of a scalar quantity?
Which of the following is an example of a scalar quantity?
Mass is defined as which of the following?
Mass is defined as which of the following?
Flashcards
Scalar quantity
Scalar quantity
A physical quantity described only by its magnitude.
Distance
Distance
The shortest space between two points.
Unit of Distance
Unit of Distance
Meter or foot.
Speed
Speed
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Mass
Mass
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Study Notes
Physical Quantities
- Physical quantities are grouped into scalar and vector quantities.
- Scalar quantities are defined by magnitude only.
- Examples of scalar quantities: Distance, speed, mass.
Distance
- Distance is the shortest space (𝑑𝑥 or 𝑑) between two points.
- Units: meters or feet.
Speed
- Speed is the rate of change of distance with time.
- Speed = Distance / Time.
Mass
- Mass is the quantity of matter in a body.
- Mass is measured.
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