Practice Introduction To Conservation Principles (14) - Introduction to Conservation Principles

Practice: Introduction to Conservation Principles

Lesson 14Introduction to Conservation Principles

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is conservation of mass?
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Think about what happens in a closed system.
Question 2.
Give an example of an extensive property.
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Consider properties that change with the amount of substance.
3Question 3.
Which conservation principle states that mass cannot be created or destroyed?
- Conservation of Momentum
- Conservation of Energy
- Conservation of Mass
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Consider a closed container.
4Question 4.
True or False: Intensive properties depend on the quantity of material.
- True
- False
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Think about temperature versus volume.
Question 5.
A fluid is flowing through a pipe and faces a constriction that reduces the diameter by half. Calculate the change in flow velocity if the flow is incompressible.
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Remember that the flow rate must remain constant.
Question 6.
In a control volume, a fluid is entering with a mass flow rate of 5 kg/s and exiting with 4 kg/s. Calculate the change in mass within the control volume over 10 seconds.
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Consider how mass flows in and out of the control volume.

5 more questions in this section. Enroll free to practise them all.