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Questions and Answers
What is a simple machine and how does it work?
What is a simple machine and how does it work?
A simple machine is a mechanical device that changes the direction or magnitude of a force. It works by using mechanical advantage to multiply force.
What are the six classical simple machines defined by Renaissance scientists?
What are the six classical simple machines defined by Renaissance scientists?
The six classical simple machines defined by Renaissance scientists are lever, wheel and axle, pulley, inclined plane, wedge, and screw.
How does a simple machine increase the output force?
How does a simple machine increase the output force?
A simple machine increases the output force at the cost of a proportional decrease in the distance moved by the load.
What is the ratio of the output to the applied force called?
What is the ratio of the output to the applied force called?
What are simple machines considered to be in relation to more complicated machines?
What are simple machines considered to be in relation to more complicated machines?
Which of the following is the primary function of the excretory system?
Which of the following is the primary function of the excretory system?
What is the main way in which waste products are eliminated from the body in mammals?
What is the main way in which waste products are eliminated from the body in mammals?
In humans and other amniotes, which organs are considered part of the excretory system?
In humans and other amniotes, which organs are considered part of the excretory system?
Why is the term 'excretory system' not usually used in formal classifications of anatomy or function?
Why is the term 'excretory system' not usually used in formal classifications of anatomy or function?
What is the dual function of excretory systems?
What is the dual function of excretory systems?
