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WorksheetsWheels and Axles, Gears and Pulleys
Total questions: 33
Worksheet time: 36mins
Identify the type of pulley above.
fixed pulley
movable pulley
compound pulley
How do fixed pulleys make work easier?
they change the direction of a force
they change the amount of force required
the distance over which the force is applied
the measurement of an object
Identify the type of pulley
Fixed
Moveable
Block and Tackle or pulley system
A load of 650 newtons is lifted with this pulley. What is the effort required to do this work?
300 N
325 N
600 N
650 N
How much force would be needed to lift the 150 lb weight?
300 lb
150 lb
75 lb
25 lb
____ gears are used to transfer rotation at a 90 degrees angle.
Crown
Spur
Worm
Compound
Which of the following are benefits of gears?
Change the plane of rotation
Increase or decrease the speed of applied motion
Increase or decrease the applied force
They look pretty
This 2000 N weight is raised 1 meter by pulling 4 meters of rope. What force was required to pull the rope?
If a pulley system has a mechanical advantage of 4, what does that mean?
This means the effort can lift a load that is 4 times its force.
This means the effort needs to be 4 times the load in order to lift it.
For example, if you lifted 25 kg, it would take 100 kg of effort.
It means you would need to pull 4 cm of rope for every 1 cm the load rises.
Which gear train would you use to apply the force necessary to ride up a hill?
A
B
What is the ideal mechanical advantage of the following pulley system?
6
2
4
7
What is the ideal mechanical advantage of the following pulley?
4
2
5
6
What is the ideal mechanical advantage of the following pulley?
4
3
5
7
What is the mechanical advantage of this pulley system?
4
6
8
5
How much effort is required to lift the 300 newton load?
50
60
75
90
What is the mechanical advantage of this pulley system?
4
5
6
7
What is the mechanical advantage of this pulley?
2
3
4
5
What is the mechanical advantage of this pulley?
3
4
5
6
What is the mechanical advantage of the pulley?
3
4
5
6
The gear with 6 teeth is attached to the motor. The gear with 10 teeth would spin __________
in the same direction
slower
with less strength
faster
with more strength
The gear with 48 teeth is spun clockwise by the effort. The gear with 24 teeth would spin __________
clockwise
slower
with less force or torque
faster
with more force or torque
When working with a wheel and axle, what happens when you decrease the wheel size?
the effort force needed to turn the wheel increases and the effort must turn a greater distance.
the effort force needed to turn the wheel increases and the effort turns a shorter distance.
the effort force needed to turn the wheel decreases and the effort must turn a greater distance.
the effort force needed to turn the wheel decreases and the effort must turn a shorter distance.
Nothing. The wheel size doesn't affect anything.
When working with a wheel and axle like a wishing well, what happens when you decrease the axle size?
the effort needed to lift a load increases and the wheel must turn a greater distance.
the effort needed to lift a load increases and the wheel must turn a shorter distance.
the effort needed to lift a load decreases and the wheel must turn a greater distance.
the effort needed to lift a load decreases and the wheel must turn a shorter distance.
Nothing. The axle size doesn't affect anything.
Which screwdriver requires the least effort force to turn a screw?
Screwdriver A
Screwdriver B
Screwdriver C
They all require the same effort force.
Which screwdriver has the greatest mechanical advantage?
Screwdriver A
Screwdriver B
Screwdriver C
They all have the same mechanical advantage
Which screwdriver would require the least amount of distance moved by the fingers that operate it?
Screwdriver A
Screwdriver B
Screwdriver C
They all require that the fingers move the same distance.
Your effort spins Gear A. Gear D shares an axle with a bike wheel. What is this gear set designed to do?
Move the bike the fastest possible but without much strength, like flat or downhill.
Move the bike against strong resistance but slowly, like uphill or against strong wind.
Move the bike against strong resistance and as fast as possilbe, like uphill or against strong wind.
Move the bike the slowly and without much strength, like flat or downhill.
Your effort spins Gear A clockwise. How does Gear D turn?
Clockwise
Counterclockwise
90 degrees from gear A's rotation
Gear D doesn't spin, it twerks.
Your effort spins Gear A. How does Gear C turn?
Gear C turns faster than Gear A
Gear C turns slower than Gear A
Gear C turns with the same speed as Gear A
Gear C does not turn.
A motor is connected to the worm gear on the bottom. It spins the spur gear on top. This gear set design is good for ____________.
Changing the direction of motion perpendicularly.
Creating the opposite motion.
speeding up rotation significantly.
slowing rotation significantly.
increasing the force, torque, or strength of turning.
Which of these gear pairs is designed to produce more force or torque?
Effort is applied to the blue gear.
Effort is applied to the blue gear.
Effort is applied to the silver gear
Effort is applied to the gold gear
Which of these gear pairs is designed to change the direction of rotation perpendicularly (by 90 degrees)?
Effort is applied to the blue gear.
Effort is applied to the blue gear.
Effort is applied to the silver gear
Effort is applied to the gold gear
Which of these gear pairs is designed to increase speed?
Effort is applied to the blue gear.
Effort is applied to the blue gear.
Effort is applied to the silver gear
Effort is applied to the gold gear
