physic chapter 3 (force) Flashcards

1
Q

what is force?

A

when a force on an object will cause the object will cause the object to accelerate in that direction.(force is a push or a pull acting between object and another

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2
Q

how is force measured?

A

forces are measured in newtons using a newton meter. Force are vector measurements because they have magnitude and direction

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3
Q

what are example of contact force?

A

friction,air resistance,tansion

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4
Q

what are examples of non-contact force?

A

magnetic,weight

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5
Q

what is newton first law?

A

an object will remain at rest or moving with constant velocity unless a resultant force acts on it

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6
Q

What is newtons second law?

A

a resultant force will cause an object to accelerate,The greater the mass,The lower the rate of acceleration

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7
Q

what is newtons third law of motion?

A

when object a applies a force to object b,object b applies on equal and opposite force to object a.

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