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Science CH 10 notes
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25
Science
8th Grade
10/07/2012

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Cards

Term
Something is in motion if it is what?
Definition
changing position
Term
An object changes position if it does what?
Definition
moves relative to a reference point
Term
What is another word for you reference point?
Definition
starting point
Term
What includes the distance between the starting and ending points and the direction in which you travel?
Definition
displacement
Term
What is distance?
Definition
a nummerical description of how far apart objects are
Term
What is the distance travelled divided by the time taken to travel the distance?
Definition
speed
Term
What is the formula that speed can be calculated from?
Definition

speed(meters/second)=

distance(meters)

Term
What is the SI unit for speed?
Definition
m/s
Term
What is found by dividing the total distance traveled by the time taken?
Definition
average speed
Term
What acn change speeds many times as it speed up or slows down?
Definition
na object in motion
Term
How can you represent the motion of an object?
Definition
With a distance time graph
Term
The what of an object is the speed of the object and direction of its motion?
Definition
velocity
Term
Velocity has the same units a s what?
Definition
as speed
Term
Velocity also includes the direction of what?
Definition
motion
Term
What is the change in velocity divided by the time it takes for the change to occur?
Definition
acceleration
Term
What is the SI unit for acceleration?
Definition
m/s squared
Term
When you speed up what will always be greatier than your initial speed?
Definition
your final speed
Term
When your final speed is less than your initial thing, what happens?
Definition
your acceleration is negative
Term
How can the motion of an object that is acceleration be shown?
Definition
on a graph
Term
What is the SI unit for mass?
Definition
kilogram
Term
Objects with more mass have more what?
Definition
inertia
Term
What is momentum usually symobolized by?
Definition
p
Term
What is the momentum equation?
Definition
p= mass x velocity
Term
What is velocity measured in?
Definition
meters per second
Term
Momentum has a direction that is the same as what?
Definition
the directionof velocity
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