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WorksheetsPig flashlight internal mechanisms (EYW) vf
Total questions: 30
Worksheet time: 15mins
what is this type of mechanism called?
gear train
gear chain
gear box
bevel gears
In which gear system does the output speed get faster ?
Big gear to small gear
Small gear to big gear to big gear
Big Gear to Small gear to big gear
Small gear to big gear
The teeth of ______ Gears are cut at an angle for smoother transition
Rack and Pinion
spur
Bevel
Helical
What do we call the gear connected to the input power source, such as a motor?
Driven Gear
Bigger Gear
Smaller Gear
Driving Gear
What do we call the gear connected to the output, such as a wheel or mechanism in a system?
Driving Gear
Driven Gear
Bigger Gear
Smaller Gear
Transfers motion between two shafts running parallel to each other. They are characterized by their teeth, which are straight and parallel to the gears axis of rotation.
Spur Gear
Worm Gear
Bevel Gear
Crown Gear
A gear mounted to a straight rod, such that it moves in a linear fashion when torque is applied to it by a spur gear (known as the pinion gear).
Spur Gear
Crown Gear
Bevel Gear
Rack Gear
____________ gears come in pairs that mate together to transfer power between perpendicular shafts that have axes of rotation offset from one another. These gears resemble screws; as they spin they turn their mating wheel.
Spur gears
Bevel Gears
Crown Gears
Worm gears
What is the correct gear ratio (Mechanical Advantage)?
36:12
12:36
What is produced by moving a permanent magnet through a coil of copper wire?
electricity
electromagnet
light
sound
When speed decreases, what happens to the value of force [torque]?
increases
decreases
stays constant
If the driving gear is the one on the RIGHT (the larger one), what is the gear ratio?
6:10
3:10
10:6
3:5
When you have a system with a driving gear that is _______ than the driven gear you will increase force [torque] and decrease speed.
smaller
bigger
same size
thicker
When you have a system with a driving gear that is LARGER than the driven gear you will ___________________
decrease Speed and decrease Torque
increase Speed and increase Torque
increase Speed and decrease Torque
decrease Speed and increase Torque
Batteries create electrical current because...
They create a magnetic field that pushes on the charges in the wire, making them flow.
They contain a -/+ difference which repel/attract the charges in the wire, making them flow.
They feed charges into the wire like a faucet, making them flow.
When the electrical current hits resistance, it...
Converts the electrical energy to another kind of energy, like light or heat
Repels the electrons
Amplifies the current
What is the function of this gear train?
To increase the amount of force applied by the hand
To increase the speed that the magnet spins over the coil
There is no advantage
To make noise
What is the function of this set of mechanisms?
Transfer electrical energy
Transfer rotational energy
Convert rotational mechanical energy to electrical energy
Amplify speed
What is the function of this piece?
Transfer electrical energy
Convert electrical energy to light energy
Convert human energy to light energy
Amplify light energy
What is the function of this piece?
Convert human energy into light energy
Convert electrical energy to light energy
Transfer electrical energy
Amplify light energy
