Atom and force-Physical Science,2013-'14

2. NAME :MINNETH BEEGUM A
OPTION :PHYSICAL SCIENCE
CANDIDATE CODE :

3. ATOM

4. CONTENT
STRUCTURE OF ATOM
GOLD FOIL EXPERIMENT

7. Different Models of Atom

8. GOLD FOIL EXPERIMENT

10. Force is any influence which tends to change the
motion of an object.

11. A force has both magnitude and direction,
making it a vector quantity. It is measured in
the SI unit of Newton and represented by the
symbol F.

13. The forces are balanced when things are not
moving.

14. When the forces are not equal, they are called
unbalanced forces.

15. A contact force is the one which acts at the
point of contact between two objects.

16. A non-contact force is a force applied to an
object by another body that is not in direct
contact with it.