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Machines are tools that help humans do work.
Learning Outcomes:
Describe examples of mechanical devices used in the past to meet particular needs.
Describe an example of how a common need has been met in different ways over time.
Analyze a mechanical device by describing how different parts contribute to its overall function and identifying the parts that are simple machines Machines are tools that help humans do work.
Identify the sources of energy for some familiar mechanical devices.
Identify linkages and transmissions in a mechanical device and describe their general functions.
An understanding of mechanical advantage and work helps in determining the efficiency of machines.
Learning Outcomes:
Determine the mechanical advantage and the speed ratio of a mechanical device.
Modify a model mechanical system to achieve a given mechanical advantage.
Identify the reason for differences between theoretical and actual mechanical advantages
Identify work input and output for a simple machine or mechanical system
Describe how hydraulic pressure can create a mechanical advantage
Science, society, and the environment are all important in the development of mechanical devices and other technology.
Learning Outcomes:
Evaluate the design and function of a mechanical device in relation to efficiency and effectiveness.
Identify the impacts of a mechanical device on humans and the environment
Develop and apply criteria for evaluating a mechanical device
Describe how the following factors affect technological development: advances in science, trial and error, and changes in society and the environment
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