centre of gravity Flashcards
What is the definition of the center of gravity?
The center of gravity is the point at which the weight of a body or system is balanced in all directions.
True or False: The center of gravity always lies within the material of an object.
False
Fill in the blank: The center of gravity is also known as the ________ of an object.
center of mass
How does the center of gravity change when an object’s shape is altered?
The center of gravity shifts according to the distribution of mass in the altered shape.
Multiple Choice: Which of the following objects has a higher center of gravity? A) A flat board B) A tall, narrow pole
B) A tall, narrow pole
True or False: The center of gravity can be outside the physical boundaries of an object.
True
Multiple Choice: Which factor does NOT affect the center of gravity? A) Shape B) Color C) Mass distribution
B) Color
Short Answer: How can you find the center of gravity of an irregularly shaped object?
By balancing it on a point or using plumb lines to determine the intersection point.
True or False: The center of gravity remains constant regardless of the object’s orientation.
False
Fill in the blank: The center of gravity is crucial for ________ in engineering and design.
safety
Multiple Choice: Which scenario would likely lower an object’s center of gravity? A) Adding weight to the top B) Adding weight to the bottom
B) Adding weight to the bottom
What is the center of gravity of a symmetrical object?
It is located at the geometric center of the object.
True or False: The center of gravity can be calculated using mathematical formulas.
True
Fill in the blank: Objects with a low center of gravity are generally more ________.
stable
where should the centre of gravity of a body be located for stable equilibrium a) above the base b) near geometric centre c) can be anywhere d) both a) and b)
d) both a) and b)
