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WorksheetsTOPIC 1_CENTER OF GRAVITY
Total questions: 30
Worksheet time: 17mins
Where will be the centre of gravity of a uniform rod lies ?
At its end
At its middle point
At its centre of its cross sectional area
Depends upon its material
Which one describe the point through which the whole weight of the body acts?
Inertial Point
Center of gravity
Centriod
Central point
Where the center of gravity of a circle lies?
At its centre
Anywhere on its radius
Anywhere on its circumference
Anywhere on its diameter
Which simple method can be used to find the centre of gravity of an object?
stop watch
plumbline
pendulum
gauge
What is one way you might increase the stability of an object?
Lower the center of gravity
Raise the center of gravity
Increase the height of the object
Shorten the base of the object
Where is the centre of gravity of a ball?
On the outside edge of the ball
A point not touching the ball
The centre of the ball
On the top of the ball
what is one method other than a plumb bob that can be used to find the centre of gravity?
Dropping the object and seeing how it falls
Finding the point that the object balances
Measuring the object with a ruler
Looking at the lightest part of the object
Do all objects have a centre of gravity?
No objects have a centre of gravity
Only some objects have a centre of gravity
Only very heavy objects have a centre of gravity
Yes all objects have a centre of gravity
Why is the car on the left unstable?
Its centre of mass is high
it has a narrow base
it has a high height
all of the above
Why is the car on the right more stable?
Its centre of mass is higher
it has a wider base
it has more height
all of the above
An object with a wider base has a higher center of gravity.
True
False
If you place two plates of the same size and weight on opposite sides of a tray, the center of gravity would be at the middle.
True
False
Based on the picture and the car's Center of Gravity, will it topple down or return to its original position?
The car will topple down because the Center of Gravity is beyond the car's base.
The car will return to its original position because the Center of Gravity is within the car's base.
The car will topple down because the Center of Gravity is within the car's base.
The car will return to its original position because the Center of Gravity is beyond the car's base.
Based on the picture and the car's Center of Gravity, will it topple down or return to its original position?
The car will topple down because the Center of Gravity is beyond the car's base.
The car will return to its original position because the Center of Gravity is within the car's base.
The car will topple down because the Center of Gravity is within the car's base.
The car will return to its original position because the Center of Gravity is beyond the car's base.
A thin object has a higher center of gravity.
True
False
Which among the two objects has a higher Center of Gravity?
The ballpen
The mug/cup
None of the objects
Both of the objects
Which among the two objects has a lower Center of Gravity?
The ballpen
The mug/cup
None of the objects
Both of the objects
If a person loses balance and he leans forward beyond his Center of Gravity, he will _________________.
be able to return to his original position (standing)
fall down/trip
The Eiffel Tower is a sturdy structure because it has a wide base which means __________________.
It has a high Center of Gravity.
It has a low Center of Gravity.
Why is learning about the Center of Gravity important?
It helps us know if a building is sturdy or not.
It helps us know that objects at rest remain at rest.
It helps us know how to balance objects.
The center of gravity of the bolt in the picture is in the center of the bolt at the level of the arrow. As it sits on the desk, it is in a(n) ___________________________ position with respect to its center of gravity.
neutral
stable
unstable
irreversible
Center of gravity is usually located where
more weight is concentrated
less weight is concentrated
less mass is concentrated
more mass is concentrated
What can change the location fo the centre of gravity?
Increase in Density
Change in Temperature of the object
Increase of mass
Increase of balance points
Tricks like the balance bird work because the center of gravity (due to weight in the wing tips) is _____________ the point of support.
below
above
outside
A block with center of mass X touches the ground at point P. In which diagram will the block topple?
A heavy truck on wheels has a platform to attach to it. A man stands on the platform. The truck does not fall over.
Which position A, B, C, or D could be the center of mass of the whole system (truck, platform and man) ?
A
B
C
D
What is the reference to the ability of an object to its original position after it has been tilted slightly?
Stability
Equilibrium
Center of Gravity
Turning Effect
Which of the following is NOT part of States of Equilibrium?
Stable equilibrium
Regular equilibrium
Unstable equilibrium
Neutral equilibrium
When an object is tilted slightly and it topples over, the state is termed?
Unstable equilibrium
Stable equilibrium
Neutral equilibrium
Regular equilibrium
