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Physics Kinematics Flashcards

(26 cards)

1
Q

Vector properties

A

Magnitude and direction

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2
Q

Scalar properties

A

Magnitude only

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3
Q

X-coordinate value of a vector

A

x = v (cos(theta))

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4
Q

Y-coordinate value of a vector

A

y = v (sin(theta))

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5
Q

How to add two vectors:

A

Place the tail of one at the head of the other and draw a new vector from the new head to new tail

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6
Q

Displacement

A

Vector quantity, x final - x initial

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7
Q

Velocity

A

Change in displacement over time

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8
Q

Acceleration

A

Change in velocity over time

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9
Q

Acceleration units

A

m/s^2

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10
Q

Velocity units

A

m/s

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11
Q

Deceleration

A

Acceleration in the opposite direction of velocity (does not necessarily mean slowing down)

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12
Q

What the slope of a displacement vs. time graph represents

A

Velocity

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13
Q

What does a horizontal line mean on a displacement vs. time graph

A

Not moving (V = 0)

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14
Q

What does a negative slope mean on a displacement vs. time graph

A

Moving backwards

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15
Q

What the slope of a velocity vs. time graph represents

A

Acceleration

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16
Q

Displacement equation (basic)

17
Q

Displacement equation (advanced)

A

d = ((Vi + Vf) / 2) * t

18
Q

Acceleration equation (basic)

A

a = (Vf - Vi) / t

19
Q

Equation for Vf

20
Q

Kinematics Equation when missing Vf

A

d = Vi*t + 1/2at^2

21
Q

Kinematics Equation when missing time

A

Vf^2 = Vi^2 + 2ad

22
Q

Kinematics Equation for free fall

23
Q

Free fall equation for Vf

24
Q

Steps for projectile motion questions

A
  1. Find Viy
  2. Use Viy to find time in the air
  3. Double answer from 2, since it only represents first half of arc (to peak when Vy = 0)
  4. Calculate Vix
  5. Use d = vt to calculate distance in horizontal direction
25
Kinematics Equation when missing displacement
Vf = Vi + at
26
Kinematics Equation when missing acceleration
d = Vavg * t