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24 Cards in this Set
- Front
- Back
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newtons first law |
when an object is at rest it will remain at rest and an object in motion will remain in motion unless there is an unbalanced force acting on the object. |
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newtons seocnd law |
the force exerted on an object will cause an acceleration related to the mass of the object. Force is proportionate to acceleration. |
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newtons third law. |
for every force there is an equal and opposite reaction but opposite in direction. |
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what is displacement |
distance with a direction |
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what is velocity |
speed with a direction |
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km/h to m/s |
divide by 3.6 |
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m/s to km/h |
x by 3.6 |
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what is a scalar quantity |
has a magnitude (amount) |
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what is a vector quantity |
has a magnitude and a direction |
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how do you find speed? |
distance / time |
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how do you find distance? |
v x t |
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how do you find time? |
distance / speed |
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what is the acceleration formula? |
acceleration = final speed-initial speed / time |
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how do you find the slope? |
rise / run |
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what is negative acceleration? |
fast - slow |
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what is positive acceleration? |
slow- fast |
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what is uniform motion |
constant speed |
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what is force? |
a push or pull |
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what is force at a distance? |
non contact force eg gravity, magnetism or electricity |
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what is contact force? |
an applied force eg tension or friction |
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what are the different types of forces? |
applied force, tension, friction, normal force, gravity, force acceleration. |
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formula for force |
force = mass x acceleration |
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examples of newtons second law |
one man pushing a box = fast one man pushing a car = slow |
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examples of newtons third law |
a cannon being fired, a rocket |
