This is located between the effort force and the load in the 1st class lever
What is a Fulcrum?
100
Formula for Mechanical Advantage of a lever
What is effort arm divided by load arm?
100
Define a Simple Machine
What is a tool that has one job and makes work easier?
100
Define Lever
What is a simple machine that consists of a long beam or rod that pivots on a fixed point or fulcrum?
100
Define effort arm
What is the distance between the effort force and the fulcrum?
200
The mechanical advantage in first class levers
What is more than, less than, or equal to one ?
200
Name the lever classes
What is first, second, and third class?
200
The mechanical advantage of second class levers
What is more than one ?
200
The mechanical advantage of third class levers
What is less than one ?
200
True or false: a fishing rod is an example of a second class lever.
What is false?
300
Explain one way a lever makes work easier
What is increasing the distance through which the force acts, spreading the effort out over a longer distance, or reducing the amount force needed to move an object?
300
Mechanical Advantage of a third class lever
What is less than one?
300
Human arms and legs, shovels, fishing rods, and brooms are all examples of ______ class levers.
What is a third class lever?
300
Name 2 examples of a first class lever.
What is scissors, seesaw, or pliers?
300
True or false: a nail clipper is an example of a first class lever.
What is false?
400
The two things between load arm
What is load and fulcrum?
400
In a third class lever, the ______ is always located between the ______ and the _____.
What is effor force, fulcrum, and load?
400
What does a lever pivot on?
What is a fulcrum?
400
Define load arm.
What is the distance between the load and the fulcrum?
400
True or false: input force and effort force are the same thing.
What is true?
500
Name two things that a simple machine does
What is changing a direction of a force, increasing the magnitude of a force, increasing the distance of a force, or increasing the speed of a force?
500
In a first class lever, the _____ is always located between the ______ and the _______.
What is fulcrum, effort force, and load?
500
In a second class lever, the _____ is always located between the ______ and the ______.
What is load, effort force, and fulcrum?
500
Name three examples of a second class lever.
What is a wheelbarrow, crowbar, nail clipper, or stapler?