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WorksheetsInvestigating Tools and Machines Test Review
Total questions: 17
Worksheet time: 9mins
What unit is used to measure work?
kilogram
newton
meter
joule
Which of the following changes when an inclined plane is used to raise a load?
only the effort
only the distance
both effort and distance
only the weight
Which of the following is an inclined plane that splits things apart?
wedge
pulley
lever
wheel and axle
Which of the following is an inclined plane wrapped around a rod?
pulley
screw
lever
wheel and axle
Which of the following is an example of a wheel and axle?
hammer
drill bit
scissors
doorknob
How much effort is needed to lift a load with a weight of 20 newtons by using a FIXED pulley?
5 N
10 N
20 N
40 N
How much effort is needed to lift a load with a weight of 20 newtons by using a MOVEABLE pulley?
5 N
10 N
20 N
40 N
Which of the following in NOT true?
Gears that are different sizes turn a different speeds.
Gears that are the same size turn at the same speed.
Gears can change the direction of the effort.
Gears that mesh turn in the same direction.
What type of engineer designs and constructs machines involving motion?
mechanical
civil
electrical
chemical
What type of engineer designs and constructs bridges?
mechanical
civil
electrical
chemical
How much work is done if a load with a weight of 5 newtons is lifted 4 meters?
5J
25J
120J
20J
Select all the tools that contain wedges.
knife
paper clip
scissors
doorknob
pencil sharpener
What is the primary function of a paper clip?
cut
move
measure
observe
fasten
What is the primary function of a spring scale?
cut
move
measure
observe
fasten
What is the primary function of eyeglasses?
cut
move
measure
observe
fasten
Salad tongs are an example of what class of lever?
third
first
second
Why do sleds and rollers make it easier to move a load?
they shorten the distance traveled
they reduce friction
they're fun to use
they're easy to use
