17728036
Beschreibung
Karteikarten von Arieanna Nazir, aktualisiert more than 1 year ago
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Erstellt von Arieanna Nazir
vor mehr als 5 Jahre
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| Frage | Antworten |
| General Problem Solving Strategy | 1) Read the problem carefully. 2)Draw a diagram of what is happening in the problem. 3)Label all the objects and forces on the object(s) and choose a coordinate system. 4)Identify which principles are used and list your known and unknowns. Put a circle around what you need to find. 5)Choose the equations that will help you find what you need to in the problem. 6)Do the math. 7)Make sure to put units or find them. 8)Plug your answer and make sure it makes sense. |
| Geocentric Model | Earth is the center of the universe. |
| Dynamics | Study of force and mass like motion and physical concepts |
| Kinematics | Discusses motion without discussing what happens to it. |
| Heliocentric model | Sun is the center of the universe |
| Frame of reference | Chosen coordinate plane |
| Displacement | change in position a vector quantity which has an SI unit of m. (delta)x=xf-xi |
| Vector | quantity with both magnitude and direction |
| Scalar | quantity with measurement alone |
| Velocity | SI Unit: m/s xf-xi/tf-ti or (delta)x/(delta)t speed or velocity in everyday math but in physics velocity is a vector quantity |
| Speed | Average speed=total distance/total time SI Unit: m/s |
| Acceleration | SI Unit: m/s^2 a=(delta)v/(delta)t or vf-vi/tf-ti |
| Kinematic equations | v=vi+a*t Average velocity=(vi+v/2) (delta)x=vit+1/2a*t^2 (delta)x=(vi+v/2)*t v^2=vi^2+2a(delta)x |
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