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WorksheetsUnit D: 1.0 Quiz
Total questions: 20
Worksheet time: 10mins
A simple machine is called a simple machine because it is
ease to operate
complex to operate
made of one basic machine
a machine that does simple work
The remains of the 2000 year old Roman aqueducts seen today in fields in Europe are mostly
raised distribution channels used to carry water to cities
reservoirs for the water
the pumps for raising the water to the channels
none of these
Simple tools made from simple machines were developed and invented by people thousands of years ago in order to
have more efficient transfer of their energy
made their life easier
help them do their work
do all of the above
One of the very first tools that was probably used was the
wheel and axle
lever
pulley
wedge
Which of the following methods of transporting water are still being used today?
Sakia
Archimedes screw
Carrying buckets of water
All of the above
The point around which a lever can rotate is called a
load force
fulcrum
wedge
effort force
Which simple machine would be most helpful in moving a large, flat rock into a truck?
A long ramp
A short ramp
A large wedge
A wheel and axle
A disadvantage of a wheel and axle is
you must exert a force over a greater distance than the load
you must move the load over a greater distance
it can only be used in one direction
you must turn a greater distance to get more force
A disadvantage of a wedge is
you must exert a force over a greater distance than the load
you must move the load over a greater distance
it can only be used in one direction
you must turn a greater distance to get more force
A disadvantage of a lever is
you must exert a force over a greater distance than the load
you must move the load over a greater distance
it can only be used in one direction
you must turn a greater distance to get more force
A simple machine can do all of these except
change the direction of a force
multiply the force of the load
transfer the force from one area to another
increase speed without decreasing force
Newer, more complex machines or devices have been developed because
people were needing more time for families
people were becoming dependent on simple machines
work became more and more difficult
more people were living close together
The development of new technologies has
slowed down in the last 100 years
sped up in the last 100 years
stayed about the same
slowed down in the last 50 years
All of these are complex machines except
a bicycle
a screw
a power drill
a circular saw
The function of a linkage in a bicycle is to
transfer energy
slow the machine down
change the direction of motion
both a and b
Gears that increase the speed of rotation in a device are called
driving gears
driven gears
reducing gears
multiplying gears
In a gear train, the gear that applies a force to the other gear is called the
driving gear
driven gear
reducing gear
multiplying gear
A gear train is a `
series of different sized gears working together
special gear designed for use on trains
driving gear
driven gear
In order to increase the speed in a gear system
the driving gear must be smaller than the driven gear
the driving gear must be larger than the driven gear
the driving gear must be the same size as the driven gear
none of these
Which famous scientist designed the first helicopter though he never made a working prototype?
Mr. Smartypants
Miss I know everything
Archimedes
Leonardo da Vinci
