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SS4 unit 7 Review
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Game Code: 1043062
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Which of the following is not true?
Lever - to carry or move heavy objects easily
Pulley - to lift objects to a higher place
Gear - to move objects easily
Wheel and axle - to cut or separate objects
15
What is a machine?
Any instrument that helps us move from a place to another pl
Any instrument that helps us to do work easily
Any instrument invented by humans
Any instrument that uses a motor to function
15
A machine is something we use to make work
slower
more difficult
easier
15
A simple machine...
is something we use to make work easier
is made up of simple machines
has few or no moving parts
15
A complex machine...
is something we use to make work easier
is made up of simple machines
has few or no moving parts
15
A tap is a simple machine that has...
lever
wheel and axle
inclined plane
pulley
15
This complex machine uses...
electricity from batteries
electricity from the mains
15
A wrist-watch is a complex machine which...
uses electricity from the mains
uses a battery
15
We push these with our feet. They make the wheels turn around.
brakes
pedals
tyre
front wheel
15
A bicycle is a ....
simple machine
complex machine
15
A bicycle needs our _________ to work
potential energy
thermal energy
chemical energy
kinetic energy
15
We use our hands to change these when we want to go up or down a hill.
gears
brakes
gear controls
pedals
15
The gears are ______
levers
wheel and axle
pulleys
wedge
15
We hold the _________ and use these to change direction.
gear controls
handlebars
brakes
gears
15
The pedals are....
pulleys
levers
inclined planes
wedges
15
The handlebars are....
levers
wedges
pulleys
inclined planes
15
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