Force Test
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what is force? | -a push or a pull
-all forces must have size and direction
-measured by Newtons
-more Newtons=greater the force
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| what is net-force? | -an unbalanced force that will not equal zero
-a balanced for that will equal zero
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| what is Newton? | the unit for force
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| what are balanced forces? | when the force is applied there is no movement
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| what are unbalanced forces? | it produces a change in motion
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| what is friction? | a force that apposes motion between two surfaces that are touching
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| what is inertia? | the tendency of an object to resist changes in its state of motion
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| what is gravity? | an attractive force between any two objects that depends on the masses of the objects and the distance between them
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| what is mass? | the amount of matter in an object
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| what is weight? | the gravitational force exerted on an object
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| MEMORIZE!!! | NEWTON'S 3 LAWS
(WITH MOM) put me in the incorrect box
LOOK AT STUDY GUIDE!!!
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| it takes ________ force to accelerate a light object? | less
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| it takes ________ force to accelerate a heavy object? | more
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| as mass is ____________ acceleration decreases? | increased
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| as mass is ____________ acceleration increases? | decreased
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| what is the formula for Newton's second law? | acceleration=force/mass
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| balanced forces acting on an object..... | no movement
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| unbalanced forces acting on an object.... | produce movement
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| what are the 4 types of friction? | rolling, sliding,fluid,and static
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| what frictional forces would a truck experience as more weight is added to its bed? | as more mass is added to the truck, the more force pushes it
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| what are some things you can do to increase frictional force? | add salt or sand to an icy road
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| what are some things you can do to decrease frictional force? | add lubricants
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| what is the Law of Universal Gravitation? | states that the gravitational force increases as the mass of either object increases and as the objects move closer (relationship between mass and distance)
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| as you increase the mass of an object what does this do to its force of gravity? | increase mass, increase gravity
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| as you increase the distance between objects, what does this do to the force of gravity? | increase distance, decrease gravity
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| IMPORTANT | review open note quiz
review class notes
bring calculator
memorize formulas
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| FORMULAS | force=mass x acceleration
mass= force divided by acceleration
acceleration= force divided by mass
mass=weight divided by 9.8 m/s squared
weight=mass x 9.8 m/s squared
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Created by:
SSSullivan
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