NEET > Physics Class 11 > Short Tricks: Motion in a Straight Line
Short Tricks: Motion in a Straight Line Video Lecture - Physics Class 11 - NEET
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FAQs on Short Tricks: Motion in a Straight Line Video Lecture - Physics Class 11 - NEET
| 1. What is motion in a straight line? |  |
Ans. Motion in a straight line refers to the movement of an object along a straight path. It can be either uniform, where the object covers equal distances in equal intervals of time, or non-uniform, where the object covers unequal distances in equal intervals of time.
| 2. What is the difference between distance and displacement? | |
Ans. Distance is the total path covered by an object, whereas displacement is the shortest path between the initial and final positions of the object. Distance is a scalar quantity, while displacement is a vector quantity with both magnitude and direction.
| 3. How is speed different from velocity? | |
Ans. Speed is the distance covered by an object per unit time, whereas velocity is the displacement of an object per unit time. Speed is a scalar quantity, while velocity is a vector quantity that includes both magnitude and direction.
| 4. What are the equations of motion in a straight line? | |
Ans. The equations of motion in a straight line are:
- v = u + at (final velocity = initial velocity + acceleration × time)
- s = ut + (1/2)at^2 (displacement = initial velocity × time + (1/2)acceleration × time squared)
- v^2 = u^2 + 2as (final velocity squared = initial velocity squared + 2 × acceleration × displacement)
- s = ((u + v)/2) × t (displacement = average velocity × time)
- v = u + 2as (final velocity = initial velocity + 2 × acceleration × displacement)
| 5. What is the significance of the slope of a distance-time graph in motion? | |
Ans. The slope of a distance-time graph represents the speed of an object. A steeper slope indicates a higher speed, while a gentler slope indicates a lower speed. If the slope is zero, it means the object is at rest. The positive or negative sign of the slope indicates the direction of motion.
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