Which of the following is present
is (are) in bicycle? PST –P-3---(date not confirm)
a) Gear
b) Wheal
c) Pulley
d) all of these
How does a fixed pulley help us?
a) it can change the amount of force
b) it can change the direction of force
c) it can change the size of object
d) it can save electricity
Which pulley system can make our work easier?
a) a pulley system with 2 pulleys
b) a pulley system with 3 pulleys
c) a pulley system with 4 pulleys
d) a pulley system with 5 pulleys
Which of the following simple machine consist of a wheel attached to a smaller axle?
a) pulley
b) screw
c) lever
d) wheel and axle
A………. is the wheel with a groove
in its edge through which a cord is passed.
a) pulley
b) axle
c) gear
d) liver
Gear is a………..
a) round wheel
b) small wheel
c) toothed wheel
d) none of these
