Class-11,Motion in a Straight Line

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Q1) The position of an object moving in a straight line can be specified with reference to *

1 point

a conveniently chosen origin

an arbitrary star

another straight line

a triangle

Q2) For motion in a straight line *

1 point

motion towards origin is positive

motion away from origin is positive

position to the right of the origin is taken as positive and to the left as negative.

position to the left of the origin is taken as positive and to the right as negative.

Q3) Path length is defined as *

1 point

the distance from origin to minimum point.

the total length of the path traversed by an object.

the distance from origin to maximum point.

distance from origin to origin.

Q4) Path length is a________________. *

1 point

scalar

tensor

vector

derived unit

Q5) In Kinematics we study ways to *

1 point

find jerk without going into the causes of motion.

find acceleration without going into the causes of motion.

describe motion without going into the causes of motion.

find velocity without going into the causes of motion.

Q6) For motion in 3 dimensions we need *

1 point

frame of reference consisting of a clock and a Cartesian coordinate system having two mutually perpendicular axes, labeled X-, and Y- axes

No frame of reference is required ; a set of 3 points will do.

frame of reference consisting of a clock and a Cartesian coordinate system having three mutually perpendicular axes, labeled X-, Y-, and Z- axes

No frame of reference is required a single point will do.

Q7) Displacement is a *

1 point

scalar

tensor

Vector

Hector

Q8) An object is said to be in uniform motion in a straight line if its displacement *

1 point

is equal in equal intervals of time.

is decreasing in equal intervals of time.

is increasing in equal intervals of time.

is equal in not equal intervals of time.

Q9) The change in position or displacement (Δx) divided by the time intervals (Δt), in which the displacement occurs is known as *

1 point

average acceleration

acceleration

speed

average velocity

Q10) Average speed is defined as the total path length travelled divided by the total time interval during which *

1 point

uniform motion has taken place.

the motion has taken place.

maximum motion has taken place.

minimum motion has taken place.

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