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7y forces > forces > Flashcards

forces Flashcards

1
Q

friction

A

a force that resists movement because of contact between surfaces

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2
Q

air resistence

A

the force on an object moving through the earth’s atmosthere

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3
Q

balanced

A

forces acting on an object thatare the same size but act in the opposite direction

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4
Q

compress

A

to squash into a smaller space

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5
Q

contact force

A

a force that acts when an object is in contact with a surface, air, or water

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6
Q

deform

A

to change shape

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7
Q

drag force

A

the force acting on an object moving through air or water that causes it to slow down

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8
Q

driving force

A

the force that is pushing or pulling something

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9
Q

elastic limit

A

the point beyond which a spring will not return to its original length when the force is removed

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10
Q

electrostatic force

A

the force acting between two charged objects

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11
Q

equilibrium

A

balanced

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12
Q

extension

A

the amount by which an object gets longer when a force is applied

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13
Q

field

A

a region where something feels a force

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14
Q

gravity

A

a non-contact force that acts between two masses

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15
Q

hooke’s law

A

the law that says that if you double the force on an object the extension doubles

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16
Q

interaction pair

A

when two objects interact there is a force on each one that is the same size but in opposing directions

17
Q

kilogram (kg)

A

a unit of mass, symbol kg

18
Q

lubrication

A

a substance that reduces friction between surfaces when they rub together

19
Q

magnetic force

A

the force betweeen two magnets , or a magnet and magnetic material

20
Q

mass

A

the amount of matter (stuff) a thing is made up of

21
Q

newton (N)

A

the unit of force, symbol N

22
Q

newton meter

A

a piece of equipment that measures weight in newtons

23
Q

non-contact force

A

a magnetic, elecrostatic, or gravitational force that acts between objects not in contact

7y forces (1 decks)

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