Force and Pressure-Sample Questions

1.  Identify the agent exerting force and the object on which it acts when a piece of lemon is squeezed between fingers and juice come out.
2.  Explain that force are due to an interaction between objects.
3.  What are the effects of force?
4.  Explain contact and non-contact forces?
5.  Explain the force of gravity?
6.  If the area of head is 15cmX15cm, how much air (in weight) would you carry on your head?
7.  Does the application of force result in change of state of motion of the object.
8.  What do you meant by pressure? How can we increase the pressure by exerting same force?
9.  Give two factors which affect the effect of changes?
10.  How to describe state of motion?