Levers
Lever Classes
Pulleys
Vocabulary
Native American Uses
100
The three components of a lever are...
What are a load, effort, and a fulcrum?
100
In a Class 3 Lever System, this is located in the center
What is the Effort?
100
The two types of single pulley systems are...
What are single-fixed and single-movable?
100
When measuring Newtons on a scale, what is the distance between lines?
What is 0.2 N?
100
A travois is this type of simple machine
What is an inclined plane?
200
This is the name of the mass lifted by the lever system
What is the load?
200
The effort increases as the load is moved away from the fulcrum a Class 1 Lever System...True or False?
True
200
The load needs to be attached to this object in order to reduce effort and give an advantage?
What is the pulley?
200
Mechanical Advantage is defined as...
What is reducing the effort needed to lift a load?
200
A travois job was to...
What is transport goods easier
300
This is the force needed to move the load
What is the effort?
300
A see saw is an example of this class of lever...
What is a Class 1?
300
The effort needed to lift a single-fixed, single-movable is _____ times as much as a single-fixed.
What is one-half times as much
300
The definition of a directional advantage states...
What is changing the direction in which the effort in pulled?
300
An Atlatl was...
What is a Native American Hunting Tool
400
This is the place where the lever pivots
What is the fulcrum?
400
This Class system has the Load located in the center
What is a Class 2?
400
Name the three components of a pulley system
What are a rope, pulley, and load?
400
This material in a pulley-system, when connected to the load, provides a greater advantage.
What is a rope?
400
This is the class of lever that an atlatl is...
What is a Class 3?
500
The unit of force that measures the effort
What is a Newton?
500
The quick saying to remember which order of Classes has which component in the center. (Hint: _ _ _- _ _ _)
What is FLE-123.
500
Which produces greater advantage...a 1- or 2- pulley system?
What is a 2 pulley system?
500
This is what we draw and label to show where the effort, load, and fulcrum go in a lever system
What is a diagram?
500
Where is the effort located on an atlatl?
What is in the center?
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