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WorksheetsSimple Machines
Total questions: 48
Worksheet time: 30mins
Which of the following is a simple machine?
What is the benefit of a simple machine?
It allows us to convert motion into electricity.
It prevents us from making careless mistakes.
It uses magnets to move objects.
It allows us to move objects more easily.
What is an axle?
The tire that fits around a wheel.
The rod around which wheels rotate.
A type of inclined plane.
The rope that is strung through a pulley.
What is a fulcrum?
A metal rod that connects two wheels
A fixed point around which a wheel and axle rotate
A very large type of wheel and axle
A device that combines a wheel and axle with an inclined plane
Which of the following statements is true?
The wheel and axle multiply the force you apply to them
The wheel and axle lessen the force you apply to them
The wheel and axle make sure the level of force you apply is consistent
The wheel and axle require a tremendous amount of force to operate
Which of these devices uses a wheel and axle?
Why don't we just remove the wheel and turn the axle?
Turning the axle directly requires too much effort
Without the wheel, the axle is useless
The wheel balances out the weight of the axle
The wheel balances out the weight of the axle
Which answer correctly describes wheel and axle movement?
The wheel and axle move the same distance and turn with the same amount of force
The wheel moves a lesser distance than the axle but turns with greater force
The wheel moves a greater distance than the axle but turns with less force
The wheel moves, while the axle stays completely stil
A wheel and axle is basically just a rotating version of what?
lever
pulley
inclined plane
electromagnet
In a doorknob, what part functions as the wheel?
The knob itself
The metal rod in the middle
The fulcrum
The keyhole
Which of the following is an example of a simple machine?
Where on a bicycle might you find a pulley?
The gears
The handlebars
The seat
The tires
Let's say you were using a single-pulley system to lift a flag up a flagpole. If you wanted to raise the flag 10 meters into the air, how far would you have to move the rope?
5 meters
10 meters
20 meters
50 meters
A pulley contains which other simple machine?
screw
inclined plane
wheel and axle
lever
What is the effort force?
The force that you apply to a simple machine
The weight of the load that the simple machine moves
The distance that the simple machine moves the load
The amount of effort it takes to construct a simple machine
What is the force exerted by the load being lifted called?
The actual force
The resistance force
The effort force
The strong force
In a single pulley, what is the relationship between the effort and resistance forces?
The effort force is smaller than the resistance force
The effort force is larger than the resistance force
The effort force outweighs the resistance force
The effort and resistance forces are equal
What objects can't you lift if you're using a single-pulley system?
Very large objects
Oddly-shaped objects
Very tall objects
Objects that are heavier than you
Let's say you had a pulley system with a mechanical advantage of 3. If you want to lift a boulder 10 meters off the ground, how far would you have to pull the rope?
3 meters
10 meters
30 meters
300 meters
It's easier to lift heavy objects with a double-pulley system because:
The effort force is twice as large as the resistance force
The effort force is one-half the resistance force
The effort force is three times as large as the resistance force
The resistance and effort forces are equal
An axe is an example of a
pulley
inclined plane
screw
wedge
A seesaw is an example of a
wedge
lever
inclined plane
pulley
The fixed point on the lever is called
load
resistance
bar
fulcrum
work is equal to _____________ multiplied by distance
power
friction
force
acceleration
