How does a hydraulic device like a brake system utilizing a liquid in an enclosed tube cause the brake pads at the carโs wheel to compress onto the wheel rotor ultimately causing the car to slow down?
A force applied to one end of a liquid in a sealed tube will be transmitted to the other end of the tube.
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15
What states of matter have no definite volume?
only gases
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20
When I compress a pillow, it appears that this solidโs volume has changed. What is really happening?
You are changing the shape of the pockets of air inside the pillow.
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20
According to the text, why does a solid keep its shape?
the closeness of the particles and small forces of attraction
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20
Name the three familiar states of matter (and the one unfamiliar state).
solid, liquid, gas, and plasma
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15
What am I? My particles vibrate in place.
I am a solid.
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15
Explain what it means when the text states โliquids are not very compressibleโ?
You cannot squeeze them and change the volume.
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25
How can you make a significant change the volume of a solid?
remove part of it
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What states of matter have a definite volume?
solids and liquids
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What am I? My particles bounce off one another.
I am a gas.
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How are gases different from solids and liquids?
Gases are compressible.
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20
Fill in the Blank: The motion and arrangement of particles in each state of matter gives the states their unique _______________.