Q. 354.3( 26 Votes )
Define motion. What do you understand by the terms ‘uniform motion’? Explain with examples.
when the position of a body changes continuously with respect to a stationary object taken as reference point, the body is said to be in motion.
A body has uniform motion if it travels equal distances in equal intervals of time irrespective of the interval. Example: motion of earth around sun.
Non-uniform motion: A body has a non-uniform motion if it travels unequal distances in equal intervals of time. For example: dropping a ball from the roof of a tall building .
Rate this question :
Given figures represent the motion of two objects P and Q. Which of the objects has positive acceleration and which one has negative acceleration?
All In One - Science
Fill in the blanks.
(i) ………..is the term used for negative acceleration.
(ii) A bus starting from rest attains a velocity of 54 km/h in 60 s, its acceleration is …………….. .All In One - Science
There is an argument about uniform acceleration between Mr X and Mr Y. Mr X says “acceleration means that farther you go faster you go”. Mr Y says “acceleration means that longer you go the faster you go”. Whose statement is correct?Evergreen - Science
Uniform and non-uniform accelerationEvergreen - Science
An object is dropped from rest at a height of 150 m and simultaneously another object is dropped from rest at a height 100 m. What is the difference in their heights after 2 s if both the objects drop with same accelerations? How does the difference in heights vary with time?NCERT Science - Exemplar
When you apply brakes to a car, in which direction is its acceleration?Evergreen - Science
You are sitting in a stationary car. There is a helium balloon tied to its floor. You accelerate and obviously feel like you are being pushed backwards (against the direction of your accelerations). The balloon.All In One - Science
Give an example of negative acceleration from daily life situation.Evergreen - Science
What does the slope of a velocity – time graph represent?Evergreen - Science