Motion_LS_2

Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?

• The magnitude of average velocity of an object is equal to its average speed, only when an object is moving in a straight line.

• The magnitude of average velocity of an object is equal to its average speed, only when an object is moving in a curved circular motion

What does the odometer of an automobile measure?

• The distance covered by an automobile.

• The magnitude covered by an automobile.

What does the path of an object look like when it is in uniform motion?

• straight line path

• Passive paths

• Circular path

• Orbital path

When a body is moving with uniform velocity, its acceleration is zero.

• True

• False

What is the other name of negative acceleration ?

• retardation

• degradation

• deceleration,

• downshift

Name the physical quantity whose SI unit is m/s

• Speed

• Velocity

• Acceleration

Name the physical quantity whose SI unit is m/s²

• Speed

• Velocity

• Acceleration

What type of motion is exhibited by a freely falling body ?

• Uniformly accelerated motion

• Non- uniform accelerated motion

What is the SI unit of retardation ?

• m/s²

• m/s

• km/hr

Displacement is a………(1)…………… quantity whereas distance is a…………………………

For 1

• scalar

• vector

• uniform

• non-uniform