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Problem Solving Questions
Differentiate between like and unlike parallel forces.
What is moment of force or torque? On what factors does it depend? Write its mathematical formula.
Define center of mass. What is the effect of mass distribution in a body on its center of mass?
What is the center of gravity? Where will be the center of gravity of these regular-shaped bodies: circular plate, rectangular and square-shaped plate, triangular-shaped plate, cylinder, sphere? Differentiate between center of mass and center of gravity.
How can you find the center of gravity of an irregular-shaped thin sheet of plastic?
What is equilibrium? Describe the conditions of equilibrium. State and explain the principle of moments.
Propose how the stability of an object can be improved. Illustrate the applications of stability physics in real life.
Define the force of friction. What causes friction? What are the advantages and disadvantages of friction? Explain with examples. How can friction be reduced?
Compare rolling friction and sliding friction. How are they different in terms of contact surfaces, motion, and forces involved? Explain with examples.
Analyze the dynamics of an object reaching terminal velocity.
Define centripetal force. Describe the motion of a body in a circular path under the action of centripetal force.
Identify different sources of centripetal force in real-life examples.
Define orbital velocity. How do scientists use the concept of orbital speed to launch satellites into specific orbits? What factors influence the chosen speed?