EASY
Earn 100

Explain what is centre of gravity.

Important Questions on Work, Energy and Power

HARD

A uniform metre scale is in equilibrium as shown in the diagram :

Question Image

Calculate the weight of the metre scale.
Which of the following options is correct to keep the ruler in equilibrium when 40 gf weight is shifted to 0 cm mark?
F is shifted towards 0 cm or F is shifted towards 100 cm.

EASY
Explain what is unstable equilibrium.
EASY
Where does the centre of gravity of the atmosphere of the earth lie?
EASY
What is stability of an object?
MEDIUM
What is the centre of gravity?
MEDIUM
Explain the types of stability with suitable examples.
EASY
Explain why a long pole is more beneficial to the tight rope walker if the pole has slight bending.
MEDIUM
Explain some situations where the centre of gravity of man lies outside the body.
EASY
What is one way you might increase the stability of an object?
EASY
Which of the following is important to the stability of a body?
MEDIUM
Chose the incorrect statement.
MEDIUM
Write about the experiment to find the centre of gravity of the irregularly shaped plate.
MEDIUM
How will you determine the C.G. of an irregular lamina by the method of balance using a plumb line ? 
EASY
Assuming that the centre of gravity of a uniform thin rod to be at its mid-point, explain briefly how you obtain the position of C.G. of the triangular lamina.
EASY
A uniform metre scale of mass 80 g is to be balanced at 70 cm mark. Find from where a mass of 60 g be suspended to do so.    
MEDIUM
In _____ equilibrium, its centre of gravity remains at the same height when it is displaced.
EASY
In which of the conditions given below, the body will be stable?