Term
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Definition
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Term
| what is the SI unit for length? |
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Definition
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Term
| what is the SI unit for time? |
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Definition
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Term
| what is the SI unit for mass? |
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Definition
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Term
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Definition
the length of a path travelled between start and stopping points
(Scalar) |
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Term
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Definition
change in postion. total distance travelled.
(Vector) |
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Term
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Definition
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Term
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Definition
just a number
e.g. boston is 50 miles away
Must be + |
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Term
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Definition
number and direction
e.g. boston is 50 miles away north.
can be +or- |
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Term
| what is the equation for a? |
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Definition
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Term
| what is the equation for velocity? |
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Definition
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Term
| all objects fall towards earth with the _____?____ acceleration |
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Definition
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Term
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Definition
| when something is falling towards the earth due to ONLY gravity |
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Term
| how do you graphically add vectors? |
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Definition
| draw out arrows and place them "Tip to Tail" |
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Term
| what is a reference frame? |
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Definition
a coordinate ststem used to specify the percise location in space
(where do you measure the motion from?) |
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Term
What do these variables mean?
VAB |
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Definition
V-Velocity
A- object thats moving
B-where you are measuring from |
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Term
| A_____?_____ requires a push or pull |
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Definition
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Term
| what is the unit of force? |
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Definition
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Term
| what does 1 newton equall? |
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Definition
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Term
| what is the weakest force? |
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Definition
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Term
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Definition
the combo of all forces acting on an object.
this should equall zero when an object is still |
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Term
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Definition
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Term
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Definition
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Term
| why does mass resist acceleration |
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Definition
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Term
| every action has an ___?___and ____?____ reaction |
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Definition
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Term
| this always opposes the movement |
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Definition
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Term
| this type of friction is exerted on a motionless body |
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Definition
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Term
| this type of friction is only on objects in motion |
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Definition
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Term
| why does friction happen? |
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Definition
| because of tiny microscopic irregularities that all surfaces contain |
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Term
| the ____?____ friction is always more than the ____?____ friction |
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Definition
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Term
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Definition
| the product of force and the displacement in the direction of that force |
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Term
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Definition
| force x displacement x (cos theta) |
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Term
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Definition
the rate at which work is done.
5ke/5t |
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Term
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Definition
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Term
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Definition
| the ability of an object to cause a change in its self or its enviroment |
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Term
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Definition
| the product of objects mass + velocity |
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Term
| what is an inelastic collision? |
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Definition
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Term
| what is an elastic collision? |
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Definition
| momentum and kinetic energy are reserved. |
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Term
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Definition
the gravitational constant
6.67x10-11 |
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Term
| the planets move around the sun in an ____?____ shape |
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Definition
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Term
| what is a planets period? |
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Definition
| the time it takes to make 1 revolution. (One trip around the sun) |
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Term
| what is the equation for tangental speed? |
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Definition
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Term
| what is the equation for centripetal acceleration? |
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Definition
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