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Question 11 Mark

Fill in the blanks with suitable words: A motorcycle has a steady _________ of $3m/s^2$. This means that every __________ its _________ increases by __________.

Answer

A motorcycle has a steady acceleration of $3m/s^2$. This means that every second its velocity increases by 3m/s.

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Question 21 Mark

Fill in the following blanks with suitable words: If a body moves with uniform velocity, its acceleration is ________.

Answer

If a body moves with uniform velocity, its acceleration is zero.

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Question 31 Mark

Fill in the following blanks with suitable words: The slope of a speed-time graph of a moving body gives its ________.

Answer

The slope of a speed-time graph of a moving body gives its acceleration.

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Question 41 Mark

Fill in the blanks with suitable words: Acceleration is the rate of change of __________ It is measured in ___________.

Answer

Acceleration is the rate of change of velocity It is measured in $m/s^2.$

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Question 51 Mark

Fill in the following blanks with suitable words: The slope of a distance-time graph indicates ______ of a moving body.

Answer

The slope of a distance-time graph indicates speed of a moving body.

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Question 61 Mark

Fill in the blanks with suitable words: The physical quantity which gives both, the speed and direction of motion of a body is called its __________.

Answer

The physical quantity which gives both, the speed and direction of motion of a body is called its velocity.

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Question 71 Mark

Fill in the blanks with suitable words: Displacement is a _________ quantity whereas distance is a _________ quantity.

Answer

Displacement is a vector quantity whereas distance is a scalar quantity.

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Question 81 Mark

Fill in the blanks with suitable words: Velocity is the rate of change of __________ It is measured in __________.

Answer

Velocity is the rate of change of displacement It is measured in m/s.

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Question 91 Mark

Fill in the following blanks with suitable words:
In a speed-time graph, the area enclosed by the speed-time curve and the time axis gives the _____ by the body.

Answer

In a speed-time graph, the area enclosed by the speed-time curve and the time axis gives the distance travelled by the body.

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Question 101 Mark

Fill in the following blanks with suitable words: It is possible for something to accelerate but not change its speed if it moves in a ______.

Answer

It is possible for something to accelerate but not change its speed if it moves in a circular path.

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