The change in position of an object is called…
a) force
b) motion
c) speed
d) mass
Scissors, nut cracker, wheel barrow and human arm are example of………
a) lever
b) inclined plane
c) wheel
d) axle
It is used to draw water out of a well……….
a) pulley
b) force
c) lever
d) all of these
The characteristics of force are……….
a) force makes the object move slow
b) force makes the object move fast
c) force changes the direction of moving object
d) all the above
Device that makes work easier is called………
a) speed
b) velocity
c) simple machine
d) none of these
A simple machine used to lift or lower heavy
object is………
a) force
b) lever
c) pulley
d) none of these
