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science > motion unit vocab > Flashcards

motion unit vocab Flashcards

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1
Q

what is distance

A

the extent or amount of space between two things

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2
Q

what is displacement

A

the act of displacing

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3
Q

what is speed

A

rapidity in moving, going, traveling proceeding

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4
Q

what is average speed

A

the total distance traveled divided by the total time elapsed

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5
Q

what is Instantaneous speed

A

the speed of an object at a particular moment

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6
Q

what is velocity

A

measurement of the rate and direction of motion

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7
Q

what is acceleration

A

the speeding up of something

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8
Q

what is force

A

strength or energy as an attribute of physical action or movement

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9
Q

what is net force

A

the sum of all forces acting on an object

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10
Q

what is balanced forces

A

forces of equal magnitude but are opposite in direction

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11
Q

what is inertia

A

a tendency to do nothing or to remain unchanged

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12
Q

what is newtons second law

A

the acceleration of an object is dependent upon two things the force acting upon the object and the mass of the object

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13
Q

what is friction

A

the resistance offered by the surfaces

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14
Q

what is static friction

A

a force that keeps an object at rest

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15
Q

what is sliding friction

A

the resistance created by any two objects when sliding against each other

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16
Q

what is air resistance

A

the force acting on an object that is moving through air flowing in the opposite direction

17
Q

what is gravity

A

a force which tries to pull two objects toward each other

18
Q

what is weight

A

the amount of heaviness

19
Q

what is Centripetal acceleration

A

the property of the motion of an object traversing a circular path

20
Q

what is Centripetal force

A

the force on an object on a circular path that keeps the object moving on the path

21
Q

what is momentum

A

the quantity of motion of a moving body

22
Q

what is Newton’s third law of motion

A

for every action there is an equal and opposite reaction

23
Q
A

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