Team 1
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Team 2
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Teams
Name
Score
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Loading
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trap
No points!
Oops!
×
rocket
Go to first place!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
banana
Go to last place!
Oops!
15
×
What is the disadvantage of a movable pulley?
You have to pull up
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Check
Okay!
Check
25
×
What can gears do? (What is their purpose?)
They can change the speed and direction of motion. Also - they make work easier
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Check
Okay!
Check
20
×
What tool is used to measure the effort force in a pulley system?
Spring scale
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Check
Okay!
Check
×
eraser
Reset score!
Oops!
×
magnet
Take 5 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 20 points!
Oops!
15
×
What are bevel gears?
Gears that meet at an angle
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Check
Okay!
Check
15
×
True/False: Gear beside each other in a gear train move in the same direction
False - gears move in the opposite direction
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Check
15
×
What is a combined or compound pulley?
It is a combination of fixed and movable pulleys
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Check
20
×
If the first gear has 8 teeth and the second gear 16 teeth, how many times does the smaller gear turn for every 1 turn the larger gear rotates?
twice (2 times)
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25
×
What material is makes the best pulleys and gears? Give 2 reasons why.
Metal - smooth, strong, durable, reduces friction, lasts long, doesn't break
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15
×
What is a gear train?
A group of two or more gears working together
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Okay!
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15
×
What are the disadvantages of a combined pulley?
none
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Okay!
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25
×
If there are 10 gears in a gear train and the first gear is turning counter clockwise, tell me 2 things you know about the other gears
all the odd numbered gears are turning clockwise, the even numbered gears are turning counter clockwise
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Okay!
Check
×
thief
Give points!
5
10
15
20
25
×
rocket
Go to first place!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 15 points!
Oops!
×
seesaw
Swap points!
Oops!
×
star
Double points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
baam
Lose 10 points!
Oops!
15
×
What force is caused by objects rubbing together?
friction
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Okay!
Check
×
Restart
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