Force is the thrust (pull or push) on a body. Effects of Force: 1. Force can produce motion. eg. by kicking the ball we can produce motion in it. 2. Force can increase or decrease the speed of the moving body. eg. by pushing or pulling the moving bicycle. 3. Force can change the direction of the body. 4. Force can change the shape of the body. eg. by pressing the toothpaste we can change its shape.
Types of Force: 1. Muscular Force: With muscular force we can lift weight, change the shape increase or decrease the speed etc.
2. Force of gravity: Earth’s Force of gravity attracts all objects towards it with the result fruits fall from the tree due to it.
3. Gravitational force: It is the force due to which every object of the universe attracts each other with the same force.
4. Magnetic force: Magnets attracts the magnetic things(Iron, cobalt). This is called Magnetic Forces.
5. Electrostatic force : It is the force produced due to friction between two objects. This is the electric charge in still position.
Bibliography: 1.Text Book of science P.S.E.B,6th Class. 2.Web sites www.google.com leading to Image search.