Propose how the stability of an object can be improved. Illustrate the applications of stability physics in real life.

To improve the stability of an object:

  1. Lower the center of gravity: An object with a lower center of gravity is more stable. This is why cars and buildings are designed with low centers of gravity to prevent tipping.
  2. Increase the base of support: A wider base provides more stability. For example, a tripod has a stable base, making it more resistant to tipping.
  3. Add weight to the bottom: This increases the moment of inertia and makes the object harder to topple.

Applications of stability in real life:

  • Buildings: Tall buildings use wide foundations to improve stability against earthquakes.
  • Vehicles: Cars are designed to have a low center of gravity for better road stability.
  • Sports: Athletes, such as gymnasts or skiers, lower their center of gravity to maintain balance and stability.

Related Questions:

  1. Define center of mass. What is the effect of mass distribution in a body on its center of mass?
  2. 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? (Also draw figures to support your answer). Differentiate between center of mass and center of gravity.
  3. How can you find the center of gravity of an irregular shaped thin sheet of plastic?
  4. What is equilibrium? Describe the conditions of equilibrium. State and explain the principle of moments.
  5. Define force of friction. What causes friction? What are the advantages and disadvantages of friction? Explain with examples. How can friction be reduced?
  6. Compare rolling friction and sliding friction. How are they different in terms of contact surfaces, motion, and forces involved? Explain with examples.
  7. Analyze the dynamics of an object reaching terminal velocity.
  8. Define centripetal force. Describe the motion of a body in a circular path under the action of centripetal force.
  9. Identify different sources of centripetal force in real-life examples.
  10. Define orbital velocity. How do scientists use the concept of orbital speed to launch satellites?
  11. Q1. Write the following numbers in scientific notations.
  12. Q2. Express the followings measurements using prefixes.
  13. Q3. If a boy has age of 15 years 2 months and 10 days, convert his age in a. seconds b. milliseconds c. mega seconds
  14. Q4. How many kilometers are there in 25 micrometers?
  15. Q5. What is pitch and least count of: a. Vernier calipers if the smallest division on the main scale is 1 mm and total divisions on the vernier scale are 20. b. Screw gauge if the smallest division on its main scale is 0.5 mm and its movable scale has 50 divisions.
  16. Q6. Look at the measurement of vernier calipers:
  17. Q7. Look at the figure of screw gauge, let a small steel ball is place between its thimble and anvil then:
  18. Why door knobs are fixed at the edge of door? What will happen it the door knob is at the middle of the door?
  19. If you drop a feather and a bowling ball from the sane height, which one will reach the terminal velocity first? Which one of them will hit the ground first?
  20. Why do ice skates effortlessly slide on ice, while your shoes cause skidding?