## 11-4-11 Science Study Guide

##### Created by:

carolinewill2  on November 2, 2011

##### Description:

William's Science guide

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# 11-4-11 Science Study Guide

 forcea puch or a pull
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#### Definitions

force a puch or a pull
energy Forces transfer ______________,
a force started moving it If something is moving, you know ______________________________________.
object's mass How a force affects an object depends on the _______________________.
mass the amount of matter in an object.
grams
kilograms
Mass is measured in ___________ or __________________.
more mass More force is needed to move an object with ______________________.
less mass Less force is needed to move an object with ______________________.
a force stops it. Once an object is moving, it moves until ___________________________.
motion when an object changes position or place
motion
speeding up, slowing down, turning and stopping
A force is needed to change _______. Some examples are ____________, ______________________, ______________, and ______________.
friction a force created when things are rubbing against each other. It cannot be seen.
more friction there is The harder things rub together the ________________________________.
motion
heat energy
Friction turns ___________ energy into ______________________.
gravity a force that pulls objects to the surface of Earth
weight the amount of force gravity pulls on an object
acceleration an object's change in velocity over a period of time
velocity an object's speed and direction
force
larger acceleration
A larger _________ causes a ___________________________.
spring scale A ______________________ can be used to measure force.
size of the force The numbers on the scale show the ______________________________.
newtons metric unit of force. It is abbreviated N. It is a small amount of force.
3 laws of motion Sir Isaac Newton was the scientist who wrote the ____________________________,
Law 1 - Law of Inertia objects that rest stay at rest and objects in motion stay in motion unless they are acted upon by an outside force
inertia an object's resistqance to a change in motion
Law 2 the greater the mass of the object being accelerated the greater the amount of force needed
Law 3 for ecery action there is an equal and opposite reaction

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