physics flashcard xi

Front

The SI unit of work

Back

joule

Front

The work done by gravity on a revolving satellite is

Back

zero

Front

Which situation shows positive work?

Back

Lifting a box vertically upward

Front

Which type of friction is highest?

Back

Limiting friction

Front

The physical quantity which represents the area under a force-displacement (F-S) graph.

Back

work done

Front

Which of the following is a necessary condition for work to be done by a force?

Back

Displacement must have a component in the direction of force

Front

A force of 10 N is applied at an angle of 60° with the horizontal to move a block 5 m on a smooth floor. The work done is:

Back

25J

Front

A car moving in a circle of radius r with speed v has a centripetal force F. What is the instantaneous power delivered by this force?

Back

zero

Front

Work done is zero if the velocity of the body ______ by the application of a force.

Back

does not change

Front

What is work?

Back

Scalar product of force and displacement.