All About Gears
What is a gear?
A wheel with teeth that interlock with teeth from other gears
With a spur gear, where do the teeth on the gears meet?
On a flat surface
If the driver gear is turning clockwise, what direction is the driven gear turning?
Counter clockwise
What type of motion moves in a straight line?
Linear motion
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What is it called when two or more gears are connected?
A gear train
What type of gear is inserted in between two other gears?
An idler gear
What type of gears move faster- bigger or smaller gears?
Smaller gears
What type of motion spins in a circle?
Rotary motion
Name one everyday object in which gears are used.
Possible correct answers: clock, watch, can opener, fishing rod, pencil sharpener, bicycle
What is the gear that you turn called?
A driver gear
What type of gear is used in a fishing rod?
A worm gear
On a bicycle, the chain works like what other type of gear?
An idler gear
In what way does reciprocating motion move?
Gears help us make our daily tasks _________.
Easier
What is the last gear that you are trying to move called?
A driven gear
What type of gear has teeth that meet at a right angle to the face of the wheel?
Crown gear
How many rotations will a gear with 10 teeth make if it is connected to a gear with 20 teeth that makes one rotation?
2 rotations
In what way does oscillating motion move?
Swinging from side to side
What turns the hands on a clock?
Gears
What do gears do?
Change the speed or direction of motion or transfer force or motion from one object to another
What type of gears connect at an angle?
A bevel gear
When cycling up a hill, you want the bike to provide more force with less work. Would high gear or low gear be better for this?
What type of gears change circular motion into linear motion?
Rack and pinion gears
How does a can opener work?
You spin the handle, which spins a gear, that spins the cutting circle.