Show:
Levers 1
Levers 2
Levers 3
Pulleys
Misc.
100
The force needed to move a load or overcome a resistance.
What is effort?
100
The mass lifted or the resistance overcome by a lever.
What is load?
100
A teetor totter is this type of lever.
What is a Class 1 lever?
100
In this pulley system, the effort is equal to the weight of the load.
What is a fixed pulley?
100
A simple machine helps you reduce force, what happens to the distance?

The distance increases (gets longer).

200
A stick or beam free to pivot at a point.
What is a lever arm?
200
A paper cutter is this type of lever.
What is Class 2 lever?
200
In a Class 2 lever this is in the middle.
What is the load?
200
In this pulley system, the effort is half as much as the weight of the load
What is a movable pulley?
200
This is a tilted flat surface or ramp.
What is an inclined plane?
300
The pivot point in a lever system.
What is fulcrum?
300
A tweezers is this type of lever.
What is a Class 3 lever?
300
The 4 parts of a lever system.
What are lever arm, fulcrum, effort, and load?
300
This is attached to the pulley in a movable pulley.
What is load?
300

What is the Newton measurement for the spring scale?

3.3 N

400
The farther away this is from the fulcrum, the easier it is to lift the load.
What is effort?
400
In a class three lever the effort is located here.
What is the middle?
400
The wheelbarrow is an example of this type of lever.
What is a Class 2 lever?
400

The 3 types of pulleys.

What is single movable, single fixed, and single/fixed movable?

400

What is the scientific definition of work?

Work is the result of a force moving an object over some distance.

500
The unit used to measure force.
What is newton?
500

A shovel is type of lever.

What is a Class 3 lever?

500

The 2 advantages of using a lever.

What are mechanical and directional advantage.

500
The force that needs to be overcome or lifted
What is the load?
500

Look carefully at the pictures of pulley systems.  Which pulley system will give the MOST mechanical advantage?

Letter Z, The effort will be divided by 3, but the distance will be increased 3 times