Flashcards
PHYS 200 Unit 4: Dynamics: Force and Newton's Laws of Motion
Flashcards do conjunto (15)
- 1force-push/pull on object with specific magnitude and direction
-represented by vectors
-expressed as multiple of standard force - 2inertia-tendency of object to remain at rest or remain in motion
-measured by mass - 3mass-quantity of matter in substance
-measured in kilograms - 4weightgravitational force on mass
- 5Newton's First Law of Motionbody at rest remains at rest, or, if in motion, remains in motion at constant velocity unless acted on by net external force
- 6Newton's Second Law of Motion-acceleration of system is:
*directly proportional to and in same direction as net external force acting on system
*inversely proportional to its mass
-a = F_net/m
-F_net = ma - 7Newton's Third Law of Motionwhenever one body exerts a force on a second body, first body experiences a force that is equal in magnitude and opposite in direction to force that it exerts
- 8action force-force that acts on an object
-e.g. push against a wall - 9reaction force-force that exerts an equal and opposite force against an object'
-acts against action force
-e.g. force that wall exerts on person pushing it - 10normal force-force that surface applies on object to support the weight of the object
-acts perpendicular to surface on which object rests - 11normal force of object at rest on non-accelerating horizontal surfaceN = mg
- 12weight components of object at rest on inclined plane-w_|| = mg sinθ
-w_┴ = mg cosθ - 13tension-pulling force that acts along medium
-e.g. force exerted by a rope or cable - 14tension forceforce that supports weight of object
- 15tension force on object at restT = mg
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- O usuário eliminou as informações de disciplina FlashCards sobre PHYS 200 Unit 4: Dynamics: Force and Newton's Laws of Motion, criado por Usuário eliminado em 01-04-2021.
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- Criado por Adriana Vincelli-Joma · 1 abr 2021
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