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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define centre of gravity.
💡 Hint: Think about where an object can be balanced.
Question 2
Easy
How can you find the CG of a balanced object?
💡 Hint: Consider an experiment with a pencil.
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
Where is the center of gravity (CG) of an object located?
- At the bottom of the object
- At a point in the body where all the weight effectively acts
- At the top of an object
- None of the above
💡 Hint: Think about balancing the object on a finger.
Question 2
True or False: An object can have a CG outside its physical material.
- True
- False
💡 Hint: Consider the arrangement of mass around a point.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A person balances a 10 kg plank horizontally on a pivot. If one side has a 5 kg weight placed 1 m from the pivot, where should a 2 kg weight be placed on the opposite side to balance the plank?
💡 Hint: Remember that torque = force × distance.
Question 2
An engineer designs a crane with a CG that must remain below a certain height for safety. If the crane is 10 m tall and its weights are distributed unevenly, how can the engineer ensure the CG remains stable?
💡 Hint: Consider redistributing heavier weights towards the base.
Challenge and get performance evaluation