Correct Answers
Scientific Method - Answer-!. Recognize a problem
2. Make an educated guess-a hypothesis- about the answer.
3. Predict the consequences of the hypothesis.
4. Perform experiments to test predictions.
5. Formulate the simplest general rule that organizes the main ingredients: hypothesis,
prediction, and experimental outcome.
/.fact - Answer-a close agreement by competent observers who make a series of
observations of the same phenomenon.
/.hypothesis - Answer-an educated guess that is not fully accepted until demonstrated
by experiment.
/.laws/principles - Answer-hypothesis that are tested over and over and not
contradicted.
/.theory - Answer-a synthesis of a large body of information that encompasses well-
tested and verified hypotheses about certain aspects of the natural world.
/.Force - Answer-a push or a pull
/.net force - Answer-the combination of all forces acting on an object
/.vector - Answer-an arrow that represents the magnitude and direction of a quantity.
/.vector quantity - Answer-a quantity that needs both magnitude and direction for a
complete description.
/.scalar quantity - Answer-is a quantity that can be described by magnitude only and has
no direction.
/.Mechanical Equilibrium - Answer-a state wherein no physical changes occure;it is a
state of steadiness.
/.equilibrium rule - Answer-whenever the net force on an object is zero, the object is
said to be in mechanical equilibrium.
/.support force - Answer-the upward force that balances the weight of an object on a
surface.