pulleys
What is a name for a pulley that is with a fixed pulley and a movable pulley?
compound pulley
When you pull down what is making the object go up?
Your downward force (the work being done).
Does a steering system in a car have a pulley or a gear?
gear (rack and pinion)
Do gears have teeth?
Yes.
Name something around your house with a gear.
What is the moveable pulley attached to?
What do pulleys do?
helps makes our lives easier
What are the 2 movable pulleys?
a movable pulley and a fixed pulley
Which gear is faster the small or the big gear?
smaller gear
What is a name for a gear which has more than two or more gears?
gear train.
Is it easier to lift a load with a fixed single pulley or a compound pulley?
Compound Pulley
What is a machine with a compound pulley?
Elevator
what are the 8 types of pulleys?
Spur gears, Helical gears, Rack and Pinion, Bevel gears, Miter gears, Worm and Worm gears, screw gears and internal gears.
How many types of gears have we learned about? Can you name them?
4: Spur, bevel, worm, rack and pinion.
What is it called when two gears are connected?
Meshed
What are the compound pulleys advantages?
you can lift things easier
What has a huge pulley system used on construction sites.
A crane.
does a cycle have a gear?
yes
If a small gear moves a full turn and a bigger gear makes half a turn, how much bigger is that big gear?
The bigger gear will be twice as big. (twice as many teeth).
In a gear train, a small gear makes a larger gear turn. Will the larger gear turn faster or slower?
slower.
What are pulleys made for?
To lift things
Two gears are meshed. Gear 1 has 20 teeth and gear 2 has 10 teeth. Which gear will spin faster? By how much?
Gear 2 will spin faster. It will be twice as fast.
worm gear
If there are 3 gears and the first one goes left which one will the fourth one go?
left
In a gear train, a larger gear makes a smaller gear turn. With the smaller gear turn faster or slower?
faster.