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24 Cards in this Set
- Front
- Back
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motion |
motion is a type of movement |
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motion |
net forces create a change in motion |
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momentum |
a chance in momentum occurs when a net force is applied to an object over a specified period of time. |
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kinematics |
is the science of describing the motion of objects using words, diagrams, graphs, numbers, and equations. |
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mechanics |
the study of the motion of objects. |
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vectors |
described by both magnitude and direction |
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distance |
is how much ground an object has covered (scalar quantity) |
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scalars |
fully described by magnitude (or numerical value) |
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displacement |
objects overall change in position. (vector quantity) |
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speed |
how fast an object is going (scalar quantity) |
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velocity |
the rate of which an object changes to position (vector quantity) |
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acceleration |
rate at which an object changes its velocity (vector quantity) |
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velocity |
magnitude and direction (direction) V=D/T |
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acceleration |
speeds up slows down changes directiion |
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scalar a simple measurement |
distance speed |
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vector a measurement with direction |
displacement velocity acceleration |
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vectors |
magnitude size and direction |
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scalar |
magnitude and size |
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speed/ velocity |
D/T |
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what is the velocity of a car going 440mi in 8hrs? |
v=D/T=440/8hrs= 55mi/hrs |
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what is the velocity of a car going 20mi in 5mins |
v=d/t=20mi/5min=4mi/min |
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contact forces |
frictional force tension force normal force air resistance force applied force spring force |
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field force |
gravitational force electrical force magnetic force |
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four fundamental forces of physics |
strong nuclear weak nuclear electromagnetism gravity |
