A seesaw is an example of what class of lever
1st
What is the fixed point on a lever called?
How many types of levers are there?
3
How many classes of levers are there?
3
Where is the fulcrum located on a first class lever?
in the middle
Which parts of your body can be levers?
arms and legs, our jaws
Closer
2nd class
Where is the fulcrum located on second and three class levers?
True or false: The fulcrum is the force you use on the lever
Load/weight
A hockey stick is an example of which type of lever
3rd class
What is the long stick called that the fulcrum rotates on?
What is mechanical advantage?
applying force over distance
True or False: The longer the lever, the less effort you have to use
true
List one example of a 1st class lever, 2nd class lever and 3rd class lever
seesaw, scissors, pliers, stapler, wheel barrel, hammer, hockey stick
Every working lever contains 4 parts. What are they?
Effort arm, fulcrum, weight, and effort
Explain the law of movements
when you are 4 times farther away, you can lift 4x more or with 4 times less effort