Laws of Motion

• Force is a push or pull upon an object resulting from the object's interaction with another object. The various effects of force are:
• Force can move a body initially at rest.
• Force can bring a moving body to rest.
• Force can change the direction of a moving body.
• Force can change the speed of a moving body.
• Force can change the shape of a body.
• Force can change the size of a body.

• Muscular force – It involves the action of muscles.
  • Animals make use of muscular force to carry out their physical activities and other tasks.  
• Friction – It is an …