Motion - Part1

A worker covers a distance of 40 km from his house to his place of work, and 10 km towards his house back. Then the displacement covered by the worker in the whole trip is:

• Zero km

• 10 km

• 30 km

• 50 km

Rate of change of displacement is called:

• Speed

• Acceleration

• Velocity

• Retardation

An object travels 40m in 5 sec and then another 80m in 5 sec. What is the average speed of the object?

• 12 m/s

• 6 m/s

• 2 m/s

• 0 m/s

SI unit of Acceleration is m/s

• True

• False

The magnitude of a displacement of a particle can be more than the distance traversed.

• True

• False

Scalar quantities can be added according to the rules of arithmetic.

• True

• False

If a particle moves with a uniform velocity then:

• The particle moves in a circular path

• The particle moves in a straight line

• The particle moves in a curved path

• The particle is at rest

In a circular motion,

• the direction of motion changes continuously

• the direction of motion is fixed

• acceleration is zero

• velocity is zero

A particle is traveling with a constant speed. This means

• it covers equal distances in equal time intervals

• it does not change its direction of motion

• its position remains constant as time passes

• its acceleration is zero

Vector quantities can be added according to the rules of arithmetic.

• True

• False