P12 Newton's law of motion Flashcards

1
Q

what does Newton’s first law say?

A

velocity of an object will only change if a resultant force acts on it

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2
Q

what is meant by the term intertia?

A

the tendency of an object to remain in a steady state

(at rest or in uniform motion)

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3
Q

what is the resultant force on a stationary object?

A

zero

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4
Q

what is the resultant force of an object moving at steady speed in a straight line?

A

zero

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5
Q

what will an object experience if a resultant force is added?

A

acceleration
change in velocity

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6
Q

what is newtons second law?

A

acceleration of an object is proportional to the resultant force and is inversely proportional to the mass of the object

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7
Q

what is the inertial mass of an object?

A

how difficult it is to change an objects velocity

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8
Q

what is newtons third law?

A

when two objects interact they exert equal and opposite forces on eachother

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