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? Physics > 1. Translational Motion > Flashcards

1. Translational Motion Flashcards

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1
Q

what is a vector

A

physical quantity that has both direction and magnitude

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2
Q

what is a scalar

A

physical quantity that has magnitude but no direction

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3
Q

what do you do when adding vectors

A
  1. head of 1st vector placed towards tail of the 2nd
  2. arrow drawn from tail of 1st vector to head of 2nd one
  3. resulting arrow = vector sum of the 2 vectors
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4
Q

what do you do when subtracting vectors

A
  1. place heads of the 2 vectors together and draw an arrow from tail of 1st vector to tail of 2nd vector
  2. resulting arrow represents vector diff between the 2 vectors
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5
Q

what is distance

A

how much ground object has covered

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6
Q

what is displacement

A

objects overall change in position

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7
Q

is distance and displacement vector/scalar

A

distance = scalar

displacement = vector (has direction)

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8
Q

what is velocity

A

speed with direction

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9
Q

what is the units for velocity

A

length/time

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10
Q

is speed and velocity vector/scalar

A

speed = scalar

velocity = vector

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11
Q

what is the equation for speed

A

speed = distance/time

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12
Q

what is the equation for velocity

A

velocity = displacement/time

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13
Q

what is acceleration

A

rate of change in velocity

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14
Q

is acceleration a vector

A

yes it has direction and magnitude

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15
Q

what are the units of acceleration

A

m/s^2

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16
Q

what is the equation for acceleration

A

acceleration = rate of change of velocity/time

17
Q

what is uniform accelerated motion

A

motion that involves constant acceleration

18
Q

what is the linear motion equation for distance (x)

A

x = x0 + v0t +1/2at^2

19
Q

what is the linear motion equation for velocity (v)

A

v = v0 + at

20
Q

what is the linear motion equation for velocity squared (v^2)

A

v^2 = v0^2 + 2ax

21
Q

what are the 2 terms/conditions that allow the use of the linear motion equations

A
  1. must be constant acceleration
  2. must be linear motion
22
Q

what is the linear motion equation for average velocity (v avg)

A

v avg = 1/2(v + v0)

? Physics (13 decks)

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