Force Flashcards

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1
Q

what is a force

A

it is a push or pull

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2
Q

what is the unit of force

A

newton

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3
Q

how to convert newtons to kg

A

multiply by 10

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4
Q

what is friction

A

it is the force that opposes two sliding options in cintact

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5
Q

why is friction good

A

it prevents sliding while walking and prevents cars from skidding

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6
Q

lubrication is…………

A

the cation of applying a substance as oil or grease to a component to minimise friction. the reduction of friction

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7
Q

what is the difference between mass and weight

A

mass-is the actual amount of material contained in a body and is measured in grams,kg etc.

weight-is the exerted by the gravity of the object. measured in newtons

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8
Q

what does hooke’s law state

A

the extension of a spring is directly proportional to the applied force in newtons

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