What is viscosity?

Science ACT Prep

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•
Science
•
10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Viscosity is a measure of a fluid's resistance to flow. It describes how thick or sticky a fluid is.
2.
FLASHCARD QUESTION
Front
How does molecular mass affect viscosity?
Back
Generally, larger molecular mass can lead to higher viscosity, but other factors like molecular structure and temperature also play a significant role.
3.
FLASHCARD QUESTION
Front
What is the unit of frequency?
Back
Hertz (Hz) is the unit of frequency, representing cycles per second.
4.
FLASHCARD QUESTION
Front
What is the relationship between depth and pressure in fluids?
Back
As depth increases in a fluid, the pressure also increases due to the weight of the fluid above.
5.
FLASHCARD QUESTION
Front
What sound level in decibels (dB) can cause pain in human ears?
Back
Sounds at 160 dB can cause pain in human ears.
6.
FLASHCARD QUESTION
Front
What is potential energy (PE)?
Back
Potential energy is the energy stored in an object due to its position or configuration.
7.
FLASHCARD QUESTION
Front
How is potential energy calculated for an object at height?
Back
Potential energy (PE) = mass (m) × gravitational acceleration (g) × height (h).
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