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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define conservation of momentum.
💡 Hint: Think about how momentum is transferred in collisions.
Question 2
Easy
What is the difference between extensive and intensive properties?
💡 Hint: Recall examples like mass for extensive and temperature for intensive.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the conservation of momentum imply in a closed system?
- Momentum is always increasing
- Total momentum remains unchanged
- Momentum can be created
💡 Hint: Think about collisions and how momentum behaves.
Question 2
True or False: Extensive properties remain constant regardless of how much substance is present.
- True
- False
💡 Hint: Consider how mass behaves in different scenarios.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
💡 Hint: Use conservation of momentum where initial equals final.
Question 2
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.
💡 Hint: Recall the formula for flow rate to find the answer.
Challenge and get performance evaluation