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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is rolling resistance?
💡 Hint: Think about forces that oppose movement.
Question 2
Easy
Name one method to reduce friction in trolleys.
💡 Hint: Consider materials in wheel design.
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 is rolling resistance?
- A type of friction
- A type of mass
- A type of acceleration
💡 Hint: Think about how objects interact with surfaces.
Question 2
True or False: Using lubricants can help reduce rolling resistance.
- True
- False
💡 Hint: Consider materials that help reduce friction.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Determine the overall efficiency of a trolley after installing ball bearings and lubricating the wheels. Test it over a distance of 10 meters on a steady incline and record the times. Compare this to a baseline test with standard wheels.
💡 Hint: Ensure you note the initial and final times for accurate calculations.
Question 2
In designing a sustainable transport solution, discuss how minimizing rolling resistance could lead to energy savings in public transport systems.
💡 Hint: Think about examples from electric or hybrid transportation systems.
Challenge and get performance evaluation