15128297
Description
Flashcards by Thalia Grace, updated more than 1 year ago
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Created by Thalia Grace
over 6 years ago
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| Question | Answer |
| Force - a force is a push or pull - there are two forces acting on all objects: - gravitational force - normal force |
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| Contact Force most forces require contact between objects |
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| Non Contact Force - some forces act at a distance - they don't need contact eg: gravitatonal magnetic electrical |
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| Balanced Forces - when the forces acting on an object are balanced, the object will not change speed or direction |
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| Unbalanced Forces - If the forces acting on an object are unbalanced, the object will accelerate |
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| Forces and Acceleration In science, acceleration means to 'speed up', 'slow down' or 'change direction' |
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| Inertia Newton's first law: Inertia "objects will continue to do what they are doing until an unbalanced force acts on them" | - an object moving at a constant speed/direction has constant velocity (balanced forces) - it will continue that unless an additional force acts on it |
| Vector diagrams vector diagrams state the net magnitude and direction of the force using arrows |
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