Answer:
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In everyday use, theory is used to mean a guess or idea about how something works. In science we would call that a hypothesis not a theory. A scientific theory is a well sustained proposal or explanation based on facts that have been repeatedly confirmed through experiments and observations. To sum up, a theory in the real world is basically a guess, and a theory in the science world is a well though out plan that has been tested and a more intact thought.
Answer:
All objects that have balanced forces acting on them must be stationary is an example of Newton's first law of motion.
Explanation:
- Newton's First law of motion is the Law of inertia, that states a body continues to be in state opf rest or state of motion untill an unbalanced force acts on it.
- So if a body has all balanced forces acting on it then it will continue to remain in state of rest i.e. it will be stationary.
- The first example describes Newton's third law, that every action has equal and opposite reaction.
- The second and third example supports Newton's Second Law, the law of momentum which states that the rate of change oif momentum is directly proportional to the force applied on the body and the mass of the body.