laws & forces Flashcards

(36 cards)

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
forces are always paired
newtons 3rd law
26
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
newtons 1st law
27
the greater the force the greater the acceleration, the greater the mass the greater the force needed for the same acceleration
newtons 2nd law
28
the greater the ______ the greater the inertia
mass/speed
29
the greater the ______ the greater the inertia
speed/mass
30
1) name a type of acceleration
something accelerates as it speeds up
31
2) name a type of acceleration
something accelerates as it slows down
32
3) name a type of acceleration
something accelerates as it changes direction
33
acceleration formula
final velocity- initial velocity _____________________ time
34
meter per second sqaured (m/s2)
acceleration
35
meter per second (m/s)
velocity
36
force formula
force= mass x acceleration