KINEMATICS

1 )

A branch of physics dealing whit motion without considering its causes is known as …

Kinematics

dynamics

Hydrodynamics

mechanics

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Answer :

Branch of physics dealing with motion without considering causes is kinematics.

2 )

Mechanics is a branch of physics. This branch is…

Kinematics without dynamics

dynamics without Kinematics

Kinematics and dynamics

Kinematics or dynamics

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Answer :

Kinematics and dynamics is part of mechanics.

3 )

To locate the position of the particle we need …

a frame of reference

direction of the particle

size of the particle

mass of the particle

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Answer :

Frame of reference is needed to locate position.

4 )

Frame of reference is a ... and a ... from where an observer takes his observation,

place, size

size, situation

situation, size

place, situation

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Answer :

Frame of reference is a place from where observations are taken.

5 )

As shown in the figure a particle moves from 0 to A, and then A to B. Find path length and displacement.

2m, – 2m

8m, – 2m

2m, 2m

8m, – 8m

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Answer :

Path length is actual length covered by object. Displacement is distance between initial and final position.

Hence

Pathlength: O → A → B = 3 + 5 = 8m

Displacement: distance between O & B i.e. – 2m

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