Question for Motion in a Straight Line: Introduction Try yourself: Which of the following statements is true? A. Scalar quantities have both magnitude and direction. B. Vector quantities have only magnitude. C. Scalar quantities can be represented by real numbers. D. Vector quantities cannot be represented in 2-dimensional space. Explanation Scalar quantities have only magnitude and can be represented by real numbers, while vector quantities have both magnitude and direction. They can be represented by ordered pairs or triples of real numbers, depending on the dimensions (e.g., 2-dimensional or 3-dimensional space). View Solution

Scalar quantities have both magnitude and direction.

Vector quantities have only magnitude.

Scalar quantities can be represented by real numbers.

Vector quantities cannot be represented in 2-dimensional space.

Question for Motion in a Straight Line: Introduction Try yourself: Which of the following statements is true? A. Distance is a vector quantity, and displacement is a scalar quantity. B. Distance can be zero if the object is in motion, but displacement cannot be zero. C. The displacement can be equal to or less than the distance, but never more. D. Distance and displacement always have the same value. Explanation Displacement is the shortest path from the starting point to the ending point, so it can be equal to or less than the distance, but never more. Distance is a scalar quantity (only has magnitude), while displacement is a vector quantity (has both magnitude and direction). Distance can never be zero if the object is in motion, but the displacement can be zero if the object returns to its starting point. View Solution

Distance is a vector quantity, and displacement is a scalar quantity.

Distance can be zero if the object is in motion, but displacement cannot be zero.

The displacement can be equal to or less than the distance, but never more.

Distance and displacement always have the same value.

Question for Motion in a Straight Line: Introduction Try yourself: Which of the following statements is true? A. Speed and velocity are both scalar quantities. B. Uniform speed refers to an object covering equal distances in equal intervals of time. C. Velocity does not have a direction. D. Non-uniform speed refers to an object covering equal distances in equal intervals of time. Explanation Statement a) is false because velocity is a vector quantity, not a scalar quantity. Statement c) is false because velocity does have a direction. Statement d) is false because non-uniform speed refers to an object not covering equal distances in equal intervals of time. Statement b) is true because uniform speed refers to an object covering equal distances in equal intervals of time, meaning it is moving at a constant speed without changing. View Solution

Speed and velocity are both scalar quantities.

Uniform speed refers to an object covering equal distances in equal intervals of time.

Velocity does not have a direction.

Non-uniform speed refers to an object covering equal distances in equal intervals of time.

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Motion in a Straight Line: Introduction Video Lecture - Physics Class 11 - NEET

Name: Motion in a Straight Line: Introduction Video Lecture | Physics Class 11 - NEET
Uploaded: 2023-06-16T10:20:30Z
Description: Video Lecture & Questions for Motion in a Straight Line: Introduction Video Lecture | Physics Class 11 - NEET - NEET full syllabus preparation | Free video for NEET exam to prepare for Physics Class 11.

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04:11	Question 1
07:49	Question 2
10:29	Question 3

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