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FAQs on 9. Scalars and Vectors - Theory sheet, Class 11 Physics

1. What is the difference between scalars and vectors?
Ans. Scalars are physical quantities that have only magnitude, such as mass or temperature. Vectors, on the other hand, are physical quantities that have both magnitude and direction, such as displacement or velocity.
2. Can you provide some examples of scalars and vectors?
Ans. Examples of scalars include time, speed, distance, and temperature. Examples of vectors include displacement, velocity, acceleration, and force.
3. How can we represent vectors graphically?
Ans. Vectors can be represented graphically using arrows. The length of the arrow represents the magnitude of the vector, and the direction of the arrow represents the direction of the vector.
4. What is the result of adding two vectors?
Ans. When two vectors are added, the result is a new vector called the resultant vector. The magnitude of the resultant vector is equal to the sum of the magnitudes of the two vectors, and the direction of the resultant vector is determined by the direction of the two vectors.
5. How can we add vectors algebraically?
Ans. Vectors can be added algebraically by breaking them down into their components, adding the corresponding components, and then finding the magnitude and direction of the resultant vector. This can be done using trigonometric functions and vector addition rules.
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