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तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएस.एस.एल.सी. (इंग्रजी माध्यम) इयत्ता ७

From the given v-t graph it can be inferred that an object is - Science

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प्रश्न

From the given v-t graph it can be inferred that an object is

पर्याय

  • in uniform motion

  • at rest

  • in non - uniform motion

  • moving with uniform accelerations

MCQ

उत्तर

moving with uniform accelerations

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Force and Motion - Evaluation [पृष्ठ २५]

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सामाचीर कलवी Science - Term 1 [English] Class 7 TN Board
पाठ 2 Force and Motion
Evaluation | Q I. 4. | पृष्ठ २५

संबंधित प्रश्‍न

Figure shows the velocity-time graphs for two cars A and B moving in the same direction. Which car has greater acceleration? Give reasons to your answer.


Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.

(a) Is the magnitude of acceleration higher or lower than that of retardation ? Give a reason .
(b) Compare the magnitude of acceleration and retardation .


Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.

Which part of graph shows motion with uniform
(a) velocity (b) acceleration (c) retardation ?


The change in velocity of a motorbike is 54 kmh−1 in one minute. Calculate its acceleration in (a) ms−2 (b) kmh−2.


From the diagram given below, calculate acceleration.


From the diagram given below, calculate deceleration.


An aeroplane lands at 216 kmh−1 and stops after covering a runway of 2 m. Calculate the acceleration and the time, in which it comes to rest.


The acceleration of a moving body is constant in magnitude and direction. Must the path of the body be a straight line?
If not, given an example.


State if the following situation is possible:
A body moving with constant acceleration but with Zero velocity.


State if the following situation is possible:
A body moving horizontally with an acceleration in vertical direction.


The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: Deceleration


A car accelerates to a velocity of 30 m/s in 10 s and then decelerates for 20 s so that it stops. Draw a velocity-time graph to represent the motion and find:
The acceleration.


Figure represents graphically the velocity of a car moving along a straight road over a period of 100 hours.

Calculate the acceleration along AB and the retardation along BC.


The rate of change of velocity is ______.


What do you understand about negative acceleration?


If the velocity of a body does not change, then its acceleration is ______.


A quantity has a value of 16ms-2. It is the ______.


Acceleration is defined as the rate of change of ______.


If a body starts from rest, what can be said about the acceleration of the body?


It is possible to have objects moving with uniform speed but variable acceleration.


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