Which machine consists of grooved wheel?
a) lever
b) pulley
c) inclined plane
d) gear
A hand drill consists of two mutually perpendicular……….
a) gear
b) pulleys
c) wheels
d) leavers
The major invention in the history of mankind
a) pulley
b) level
c) inclined plane
d) wheel
It changes sliding motion into rolling motion…
a) wheel and axle
b) force
c) inclined plane
d) all of these
It is a simple machine which is usually a long rod.
a) speed
b) lever
c) wheel
d) axle
The lever that turns around a certain point is called……..
a) machine
b) fulcrum
c) load
d) friction
