FILL IN THE BLANKSa) Spanners are used to______ nuts and bolts.
b) The ______ is the resistance overcome by a machine.
C) The cogwheel of a bicycle helps us______ speed.
d) A metal rod is a _______body.
6) STATE TRUE OR FALSE FOR THE FOLLOWING STATEMENT:
a) A single machine maybe made up of a number of machines.
b) A machine performs work by itself.
c) A nutcracker helps us to magnify the force.
d) The fulcrum of the lever is denoted by the letter E.
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1 open or lose
2 effort
3 gain
4
a) true
b) false
c) true
d) false
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