Activity:
1)What is the displacement of the body if returns to same point where it is started? Give oneexample in daily life.
2. When do the distance and magnitude of displacement become equal?
3. Are the walls of your classroom at rest or in motion? why?
4. Have you ever experienced that the train in which you sit appears to move when it is at rest?
why?
5. Are these terms relative or not (Left, Right, Top. Bottom)
6. How do we understand motion?
I anyone is seeing this it is an activity
Answers
Explanation:
1. displacement=0 move in a circular path. distance traveled is the circumference of the circle. but displacement is zero since the initial and final position is same
2. only when object is traveling in a straight path
3. it's always relative. if you're at rest, then the walls are also rest with respect to you. if your friend is in motion, then the walls are in motion with respect to him.
4. yes. when trains move in adjacent tracks. that's because of relative motion.
5. yes. everything is relative to each other.
6. motion is basically a change in position of a body
Answer:
1. If the body returns to the same point from where it started, the displacement will be zero. One example is : we go to school starting from home and again return home.
2. When an object moves in a straight line without coming back, it's displacement and distance magnitude will always be equal.
3. The walls are at rest with respect to the Earth. When you are sitting in the classroom, you are also at rest with respect to the Earth, and so the walls do not seem to be moving to you because no displacement takes place so no work is done.
4. Yes, many times while we are stting in a still train, it appears to move. This is because the objects outside the train are moving. Since motion is relative, the objects outside the train are moving. That's relative motion.
5. Yes, they are relative.
6. Motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time. One can also speak of motion of images, shapes and boundaries.