Fill in the blanks.
When speed of a body is zero, it is considered to be at _______

Academic Physics NCERT Class 6

When speed of a body is zero, it is considered to be at rest.

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Updated on: 10-Oct-2022

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Is it true that displacement of a body can be positive or zero, but never negative?
Name the physical quantity which is considered to be a measure of the quantity of motion of a body.
Which of the two can be zero under certain conditions : average speed of a moving body or average velocity of a moving body ?
Which of the following statement is correct regarding velocity and speed of a moving body?a. Velocity of a moving body is always higher than its speedb. Speed of a moving body is always higher than its velocityc. Speed of a moving body is its velocity in a given directiond. Velocity of a moving body is its speed in a given direction
Is it possible that some force is acting on a body but still the work done is zero?
If the speed of a body is halved, what will be the change in its kinetic energy?
When the speed of an object can be zero?
Explain why, the motion of a body which is moving with constant speed in a circular path is said to be accelerated.
How is the power related to the speed at which a body can be lifted? How many kilograms will a man working at the power of $100\ W$, be able to lift at constant speed of $1\ m s^{-1}$ vertically? $(g=10\ ms^{-2})$
Fill in the following blanks with suitable words :(a) If a body moves with uniform velocity, its acceleration is…………………………..(b) The slope of a distance-time graph indicates………………….. of a moving body.(c) The slope of a speed-time graph of a moving body gives its………………………..(d) In a speed-time graph, the area enclosed by the speed-time curve and the time axis gives the…………….. by the body.(e) It is possible for something to accelerate but not change its speed if it moves in a………………………..
A body of mass of 2 kg is at rest. What should be the magnitude of force which will make the body move with a speed of 30 m/s at the end of 1 s?
Give one example of a situation in which a body has a certain average speed but its average velocity is zero.
In free fall the weight of a body will be zero or not?
A caterpillar is considered to be an insect. Why?

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