An object is dropped from a height onto the floor, Which one of the following remains uniform as it falls?

Which one of the following is NOT the unit of energy?

Which one of the following equations related to the motion of an object is NOT correct? (Symbols carry their usual meanings)

Weight and mass of an object are defined with Newton's laws of motion. Which among the following is true ?

Which one of the following is not a conservative force ?

Which one of the following about different frictional forces is correct?