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☆☆☆☆☆Cards in this guide (11)
Which compound machine consists of both fixed and movable pulleys
block and tackle
When is mechanical advantage increased by a first class lever
when the fulcrum is close to the load
What type of personal protective equipment used in the lab protects the eyes
Safety glasses or goggles protect the eyes in a laboratory. Sometimes a face shield is used on top of those.
Goggles
Safety goggles and safety spectacles.
What is one example of a lever is it a wedge or a wheelbarrow
A wheelbarrow is an example of a class 2 lever as well as a wheel and axle. A wedge is an example of an inclined plane.
How does an inclined plane reduce the amount of input force needed
by increasing distance over which the force is applied
Which of these is an example of a wheel and axle
a doorknob
Why do you use digital signals
to decide true or false
Which factor must increase to give a machine a mechanical advantage greater than 1
output force (:
What kind of testing can the Bunsen burner be used for
An example is the flame test, a method of qualitative analysis.
Which term defines something that does not transfer thermal energy efficiently
conductor
Which of these would you expect to make a good insulator
a poor thermal conductor
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