Practice Conservation Of Momentum (14.1.1) - Introduction to Conservation Principles

Practice: Conservation of Momentum

Lesson 14.1.1Introduction to Conservation Principles

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8 questions

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2 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
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define conservation of momentum.
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Think about how momentum is transferred in collisions.
Question 2.
What is the difference between extensive and intensive properties?
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Recall examples like mass for extensive and temperature for intensive.
3Question 3.
What does the conservation of momentum imply in a closed system?
- Momentum is always increasing
- Total momentum remains unchanged
- Momentum can be created
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Think about collisions and how momentum behaves.
4Question 4.
True or False: Extensive properties remain constant regardless of how much substance is present.
- True
- False
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Consider how mass behaves in different scenarios.
Question 5.
A truck collides with a stationary car. If the truck's mass is 2000 kg and its speed is 10 m/s, find the total momentum before and after the collision if the car's mass is 1000 kg and it moves at 5 m/s after the collision.
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Use conservation of momentum where initial equals final.
Question 6.
Consider a fluid flowing into a control volume. If the fluid has a density of 1000 kg/m³ and flows at 2 m/s in a pipe with a cross-section of 0.5 m². Calculate the mass flow rate entering the control volume.
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Recall the formula for flow rate to find the answer.

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