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MACHINES
Author :
Gonzalo Barral
1.
In order to function, all machines need...
A.
energy.
B.
petrol.
C.
electricity.
2.
To make work easier, we use...
A.
torches.
B.
balloons.
C.
machines.
3.
Machines can be...
A.
oviparous or viviparous.
B.
simple or compound.
C.
circular or square.
4.
Inclined planes are...
A.
gears.
B.
simple machines.
C.
motors.
5.
Compound machines...
A.
are made up of one part.
B.
are made up of simple machines.
C.
produce electricity.
6.
Motors are part of...
A.
inclined planes.
B.
pulleys.
C.
compound machines.
7.
Bicycles work using...
A.
electricity.
B.
energy from people.
C.
combustible fuels.
8.
A wheel is...
A.
a simple machine.
B.
a compound machine.
C.
not a machine.
9.
Gears are used to...
A.
produce elctricity.
B.
lift weights.
C.
transmit movement.
10.
A pulley is...
A.
a simple machine.
B.
an electronic circuit.
C.
an electric circuit.