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Chapter 12 Lesson 2
Question | Answer |
---|---|
a push or a pull | force |
force that opposes the mtoin of one object sliding over another | friction |
a force of attraction that exists between objects with mass | gravity |
a force that opposes the motion of an object through liquid or gas | drag force |
forces that cancel each other out when acting together on a single object | balanced forces |
forces that DO NOT cancel each other out when acting on a single object | unbalanced forces |
the tendancy of an object to oppose a change in motion | inertia |
an object at rest stays at rest will stay at rest; an object that is moving will contine moving | Newton's First Law of Motion |
the kind of friction that is acting on a box that is being pushed across the floor | sliding |
the kind of friction that is acting on wheels going down hill | rolling |
the kind of friction that prevents any movment | static |