Class 9 chapter 1 Laws of Motion

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1) The path length travelled by a body in a given time interval is known as _____.

2 points

A) Distance

B) Velocity

C) Acceleration

(D) Moment

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2) Velocity is defined as _____ per unit time.?

2 points

A) Distance

(B) Displacement

(D) Acceleration

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3) Which of the following is true for free-falling body

2 points

(A) It moves with non-uniform motion

(B) It has zero velocity

(D) It has non-uniform acceleration

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4) Slope of a velocity verses time graph represent

2 points

A) Distance

B) Displacement

C) Acceleration

D) Speed

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5) Which of the following Statement is correct ?

2 points

A) An object can have acceleration, but constant velocity.

B) The velocity of an object may be zero but acceleration is not zero.

C) Distance and the magnitude of displacement are equal in circular motion

D) Average speed and the magnitude of average velocity are always equal in circular motion.

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6) The physical quantity that has both magnitude and direction is known as

2 points

A) vector quantitiy

B) Scaler quantity

C) Both(a) and (b)

D )None of these

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7) What is the average velocity of a car that moved 60 km in 3 hours?

2 points

A) 60 km/h

B) 180 Km/h

C) 20 Km/h

D) 45 Km/h

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8) Acceleration is a ----------- quantity

2 points

A) Scaler

B) Vector

C) Both A & B

D) None of these

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9) The direction of acceleration is the same as the direction of _______.

2 points

A) Displacment

B) change in velocity

C) Speed

D) None of these

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10) A body travelling equal distance in equal interval of time is said to moving with uniform velocity if the body moves along a ------------path

2 points

A) Circular

B) Straight

C) Zig zag

D) Both A and B

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