Question : Which of the following is correct about uniform acceleration?

Option 1: An object moving on a frictionless surface can gain uniform acceleration.

Option 2: An object in free fall is an example of uniform acceleration.

Option 3: An object moving with constant speed is an example of uniform acceleration.

Option 4: The motion of a spring is an example of uniform acceleration.

Question : A body moving in a circular path with a constant speed has a:

Option 1: constant velocity

Option 2: constant acceleration

Option 3: constant kinetic energy

Option 4: constant displacement

Question : What is speed?

Option 1: It is the distance covered by an object in a unit of time

Option 2: It is the velocity of an object per unit time

Option 3: It is the force applied on covering a unit distance

Option 4: It is the acceleration of an object per unit time

Question : ______ - The time graph shows the speed of an object.

Option 1: Velocity

Option 2: Distance

Option 3: Displacement

Option 4: Acceleration

Question : The apparent weight of a man in a lift is less the real weight when:

Option 1: when the lift is going up with an acceleration

Option 2: the lift is going down with uniform speed

Option 3: The lift is going up with uniform speed

Option 4: the lift is going down with an acceleration