Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Pulleys and Gears
0
%
0
0
0
Back
Restart
What is the disadvantage of a movable pulley?
You have to pull up
Oops!
Okay!
Name 3 things we see in our lives that use pulleys
clothesline, blinds, flagpoles, cranes, old water wells, window washers
Oops!
Okay!
What is a pulley?
a kind of lever
Oops!
Okay!
What do you call the thing being lifted?
the load
Oops!
Okay!
What is the benefit of a movable pulley?
It makes lifting the load easier - it uses half of the effort force
Oops!
Okay!
What is the disadvantage of a fixed pulley?
The effort force is the same - it doesn't decrease the effort force.
Oops!
Okay!
Is a red wire positive or negative?
Positive
Oops!
Okay!
What is the benefit of a fixed pulley?
It changes the direction of the effort force - you pull down which is easier
Oops!
Okay!
What is this?
dock crane
Oops!
Okay!
What material is makes the best pulleys and gears? Give 2 reasons why.
Metal - smooth, strong, durable, reduces friction, lasts long, doesn't break
Oops!
Okay!
What is this?
lever
Oops!
Okay!
What is the purpose of a pulley?
To make work easier.
Oops!
Okay!
What is a pulley?
A grooved wheel, with a rope, chain or belt that passes around it.
Oops!
Okay!
What force is caused by objects rubbing together?
friction
Oops!
Okay!
What are on this ship?
Shipping containers
Oops!
Okay!
What is this?
circuit
Oops!
Okay!
Is the light on or off?
Off
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies