Levers
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/14
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
15 Terms
How many classes of lever are there?
Three.
What defines a class 1 lever?
The fulcrum sits between the load and the effort force.
Give an example of a class 1 lever.
A seesaw.
What defines a class 2 lever?
The fulcrum is at one end, with the load closer to the fulcrum.
Give an example of a class 2 lever.
A wheelbarrow.
What defines a class 3 lever?
The fulcrum is at one end, with the effort force closer to the fulcrum.
How do you find the MA of a class 1 lever?
Effort distance divided by load distance, which also equals load force divided by effort force.
How do you find the MA of a class 2 lever?
The same way as a class 1 lever: effort distance divided by load distance.
Where is the load distance measured from on a class 2 lever?
From the center of the load.
How do you find the MA of a class 3 lever?
Load force divided by effort force.
What is the quickest way to tell the lever classes apart?
Look at what sits in the middle: class 1 has the fulcrum, class 2 has the load, class 3 has the effort.
Which lever class has the load in the middle?
Class 2.
Which lever class has the effort in the middle?
Class 3.
Which lever class has the fulcrum in the middle?
Class 1.