# Class 9 Physics Chapter 4 Important Long Questions 2024

Students if you are looking for the 9th Class Physics Chapter 4 Turning Effect of Forces Long Questions Notes if yes? then you visit the right place where you can easily find Physics Chapter No. 4 most importantly Long questions are only without answers but it is your responsibility to find answers from your 9th class Physics book.

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## 9th Class Physics Chapter 4 Long Questions Notes

• Define the following:
• (i) resultant vector
• (ii) torque
• (iii) center of mass
• (iv) center of gravity
• Differentiate the following:
• (i) Like and unlike forces
• (ii) torque and couple
• (iii) stable and neutral equilibrium
• How head to head-to-tail rule help to find the resultant forces?
• How can a force be resolved into its perpendicular components?
• When a body is said to be in equilibrium?
• Explain the first condition for equilibrium.
• Why there is a need for a second condition for equilibrium if a body satisfies the first condition for equilibrium?
• Why a body cannot be in equilibrium due to a single force acting on it?
• Why the height of vehicles is kept as low as possible?
• Explain what is meant by stable, unstable, and neutral equilibrium. Give one example in each case.
• What is the second condition for equilibrium?
• Give an example of a moving body that is in equilibrium.
• Think of a body that is at rest but not in equilibrium.