Simple Machines

Front

A ________ is a device by means of which a force applied at one point can be used to overcome a resistance at some other point.

Back

machine

Front

We lift heavy vehicles with the help of a screw jack, is the example of which purpose of machine? Options: Transfer of force, Enlargement of the effect of force, Change in the speed of work, Change in the direction of force.

Back

Enlargement of the effect of force

Front

While using a pulley, we apply force in downward direction and bucket of water is lifted in upward direction, is the example of which purpose of machine?

Back

Change in the direction of force

Front

While driving a cycle we transfer the force of our feet to its wheels, is the example of which purpose of machine? Options: Transfer of force, Enlargement of the effect of force, Change in the speed of work, Change in the direction of force

Back

Transfer of force

Front

By using a bicycle we can travel larger distance than by foot in the same interval of time, is the example of which purpose of machine? Options: Transfer of force, Enlargement of the effect of force, Change in the speed of work, Change in the direction of force.

Back

Change in the speed of work

Front

The work done by machine is called:

Back

Output

Front

The force applied to a machine for doing work is called:

Back

Effort

Front

The work done on machine is called:

Back

Input

Front

The resistance overcome by a machine is called:

Back

Load

Front

The effort arm is represented by:

W

,

P

,

d

,

h

Back

d