Centre of Gravity

What is the definition of centre of gravity?

• The centre of gravity is the point where the entire weight of an object can be considered to act.

• The centre of gravity is the point where the object is smallest.

• The centre of gravity is the point where the object is lightest.

• The centre of gravity is the point where the object is heaviest.

How is the centre of gravity determined for an object?

• By counting the number of sides the object has

• By finding the point where the object's weight is evenly distributed in all directions.

• By measuring the object's volume

• By flipping the object upside down

Explain the concept of stability in relation to the centre of gravity.

• An object is stable when its center of gravity is directly above its base of support.

• Stability is irrelevant to the center of gravity.

• An object is stable if its center of gravity is below its base of support.

• Stability is achieved when the center of gravity is off-center.

What are some common applications of the centre of gravity in everyday life?

• Cooking recipes

• Balancing objects, designing stable structures, determining weight distribution in vehicles, sports like gymnastics and diving

• Astronomy calculations

• Weather forecasting

Why is it important to consider the centre of gravity in architecture and engineering?

• It adds unnecessary weight to the structure

• It has no impact on the building's stability

• It complicates the design process

• It ensures structural stability, balance, and safety of the building or structure.

Discuss the relationship between the centre of gravity and balance.

• The center of gravity and balance have no relationship

• Balance is maintained when the center of gravity is positioned outside the base of support

• The center of gravity is irrelevant to maintaining balance

• The relationship between the center of gravity and balance is that balance is maintained when the center of gravity is positioned over the base of support.

How does the centre of gravity affect the stability of a tall structure?

• The centre of gravity has no impact on the stability of a tall structure

• The centre of gravity affects the speed of the structure

• The centre of gravity determines the color of the structure

• The centre of gravity affects the stability of a tall structure by determining how easily the structure can topple over.

Give an example of how the centre of gravity is utilized in sports.

• Gymnastics balance beam routines

• Basketball free throw technique

• Swimming stroke efficiency

• Soccer goalkeepers positioning

Explain how the centre of gravity changes when a person bends forward.

• The center of gravity moves forward when a person bends forward.

• The center of gravity remains stationary when a person bends forward.

• The center of gravity moves upward when a person bends forward.

• The center of gravity moves backward when a person bends forward.

What factors can influence the centre of gravity of an object?

• Flexibility, hardness, and texture

• Temperature, speed, and volume

• Color, weight, and material

• Shape, size, and density distribution