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force and motion\ > force and motion > Flashcards

force and motion Flashcards

1
Q

the state in which one object’s distance from another is changing

A

motion

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2
Q

a place or object used for comparison to determine if an object is in motion

A

reference point

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3
Q

a system of measurement based on multiples of ten and on established measures of mass, length and time

A

International System of Units (SI)

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4
Q

basic SI unit of length

A

meter

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4
Q

one of the the major pieces that makes up earth’s upper layer

A

plate

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4
Q

the rate at which velocity changes

A

acceleration

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4
Q

the distance an object travels in one unit of time

A

speed

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4
Q

speed in a given direction

A

velocity

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5
Q

the overall force on an object when all individual forces are added together

A

net force

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5
Q

a push or pull exerted on an object

A

force

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6
Q

a nonzero net force which changes an object’s motion

A

unbalanced forces

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7
Q

equal forces acting on an object in opposite directions

A

balanced forces

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8
Q

the tendency of an object to resist any change in its motion

A

inertia

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9
Q

the amount of matter in an object

A

mass

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10
Q

a unit of measure that equals the force required to accelerate one kilogram of mass at one meter per second

A

Newton

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11
Q

the force that one surface exerts on another when the two rub against each other

A

friction

12
Q

friction that occurs when one solid surface slides over another

A

sliding friction

13
Q

friction that occurs when an object rolls over a surface

A

rolling friction

14
Q

friction that occurs when an object goes through fluid

A

fluid friction

15
Q

the force that pulls objects towards each other

A

gravity

16
Q

the motion of a falling object when the only force acting on it is gravity

A

freefall

17
Q

an object that is thrown

A

projectile

18
Q

the fluid friction experienced by objects falling through the air

A

air resistance

19
Q

the maximum velocity a falling object can achieve

A

terminal velocity

20
Q

the force of gravity on an object at the surface of a planet

A

weight

21
Q

the product of an object’s mass and velocity

A

momentum

22
Q

the rule that the total momentum of objects in an interaction does not change

A

law of conservation of momentum

23
Q

any object that travels around another in space

A

satellite

24
Q

a force that causes an object to move in a circle

A

centripetal force

force and motion\ (1 decks)

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