Newton's Laws  | Law 1. In the absence of a net force, a body at rest remains at rest, and a body in motion remains in motion indefinitely along the same straight line. Law 2. In the presence of a net force, an object experiences an acceleration. Law 3. For every action, there is an equal and opposite reaction. Law of Gravity: Any two objects attract each other with the universal force of gravity.
What are force, mass, inertia, and energy? Force: When you kick your sister in the shin, you are using force. Mass: If she is fat she has lots of mass. Inertia: Being fat, she will not be able to chase you. She has inertia. Energy: Every time you kick her, molecules in the form of waves pass from your foot to her shin. This is energy. There can be lots of energy, like a nuclear bomb, or a tiny amount, like when one of your brain cells dies. | |
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Second Thoughts
by Carol Moore. Science fiction is more than just supposition about future science, technology, and encounters with unknown life forms. It is also a metaphor for human nature and our success or failure in how cultures interact | | | |
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