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Lesson 14 - Surface Gravity
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12
Science
8th Grade
01/15/2013

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Term
The metric unit for measuring force
Definition
Newton
Term
The variables that remain the same in an investigation are known as  ......
Definition
controlled variables
Term
What kind of scale is used to measure mass?
Definition
balance
Term
Mass is related to the amount of ______________ in a body.
Definition
matter
Term
Weight is the measure of the force of ___________ on a body.
Definition
gravity
Term
Which variable in an investigation is measured? 
Definition
responding variable.
Term
The name of the force that attract objects to each other.
Definition
gravity
Term
What kind of scale is used to measure weight?
Definition
spring scale
Term
The variable that is changed in an investigation is called the ......
Definition
manipulated variable
Term
Surface gravity depends on the _____________  and

_________________ of the planet.
Definition
mass and radius/diameter
Term
What is the name of the force that holds us to the earth?
Definition
gravity
Term
If Mars has more mass than Mercury, why is the force of gravity on the surface of Mars nearly the same as the force of gravity on the surface of Mercury?
Definition
Mercury has a smaller diameter, therefore, objects are closer to the center of gravity on Mercury than they are on Mars.
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