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Science Finals > laws & forces > Flashcards

laws & forces Flashcards

1
Q

speed with direction

A

velocity

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2
Q

strain due to pulling

A

tension force

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3
Q

measures how much and which direction

A

vector

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4
Q

attraction force between all matter

A

gravitational

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5
Q

object slowing over time

A

deceleration

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6
Q

turns motion into heat

A

friction

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7
Q

amount or strength

A

magnitude

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8
Q

a push or pull that causes an object to change its speed, direction, or shape

A

force

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9
Q

rate of change of velocity

A

acceleration

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10
Q

upward force of fluid against an object

A

buoyancy force

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11
Q

are equal in size and opposite in direction

A

balanced force

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12
Q

are equal in size and equal in direction

A

unbalanced force

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13
Q

are not equal in size in direction

A

unbalanced force

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14
Q

causes a change in motion

A

unbalanced force

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15
Q

does not cause a change in motion

A

balanced force

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16
Q

is measured in newtons

A

unbalanced force & balanced force

17
Q

motion of liquid or gas particles

A

fluid friction

18
Q

continuous surface contact

A

sliding friction

19
Q

keeps you standing

A

static friction

20
Q

a little bit of surface contact as object is rolling

A

rolling friction

21
Q

what two things affect the magnitude of gravitational forces

A

mass & distance

22
Q

f= m x a

A

newton’s 2nd law

23
Q

for every action there is an equal & opposite reaction

A

newtons 3rd law

24
Q

law of inertia

A

newtons 1st law

25
Q

forces are always paired

A

newtons 3rd law

26
Q

an object in motion stays in motion(in same direction & speed) and an object at rest stays at rest, unless acted upon by an outside force

A

newtons 1st law

27
Q

the greater the force the greater the acceleration, the greater the mass the greater the force needed for the same acceleration

A

newtons 2nd law

28
Q

the greater the ______ the greater the inertia

A

mass/speed

29
Q

the greater the ______ the greater the inertia

A

speed/mass

30
Q

1) name a type of acceleration

A

something accelerates as it speeds up

31
Q

2) name a type of acceleration

A

something accelerates as it slows down

32
Q

3) name a type of acceleration

A

something accelerates as it changes direction

33
Q

acceleration formula

A

final velocity- initial velocity
_____________________
time

34
Q

meter per second sqaured (m/s2)

A

acceleration

35
Q

meter per second (m/s)

A

velocity

36
Q

force formula

A

force= mass x acceleration

Science Finals (5 decks)

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