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S Bryce tutoring > motion- equations and graphs > Flashcards

motion- equations and graphs Flashcards

1
Q

What do each of these letters stand for?

v, u, a, t, s

A 
v= initial velocity
u= final velocity
a= acceleration
t= time
s= displacement
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2
Q

What are the equations of motion?

A

v=u+at
s=ut+1/2at^2
v^2=u^2+2as

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3
Q

What is the sign convention for down?

A

negative

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4
Q

What is the sign convention for left?

A

negative

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5
Q

What is the sign convention for up?

A

positive

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6
Q

What is the sign convention for right?

A

positive

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7
Q

What types of motion questions are there?

A
  1. object moving in a straight line

2. object moving vertically up or down

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8
Q

What is the acceleration of an object due to gravity?

A

9.8ms-1

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9
Q

What is the speed of n object at its maximum height?

A

0ms-1

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10
Q

What is the extra equation of motion?

A

s=1/2(v=u)t

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11
Q

What do the graphs look like for…

  1. constant velocity
  2. uniform acceleration
  3. uniform deceleration
A
  1. a straight line across
  2. straight line up
  3. straight line down
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12
Q

What do the displacement graphs look like for…

  1. constant velocity
  2. uniform acceleration
  3. uniform deceleration
A
  1. straight line up
  2. curved line up
  3. curved line down
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13
Q

What do the velocity graphs look like for…

  1. constant velocity
  2. uniform acceleration
  3. uniform deceleration
A
  1. straight line across high up
  2. straight line up
  3. straight line down
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14
Q

What do the acceleration graphs look like for…

  1. constant velocity
  2. uniform acceleration
  3. uniform deceleration
A
  1. straight line on x-axis
  2. high up straight line across
  3. straight line across below x axis (negative)
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15
Q

What a velocity-time graph crossing the x-axis show?

A

a change in direction

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16
Q

What does the velocity time graph look like for a ball thrown vertically upwards?

A

A straight line downwards through axis
Going up- line going down above x-axis
Falling back down- line going down below x-axis

17
Q

Describe the velocity time graph for a bouncing ball?

A

when ball is let go, graph shows straight line going down below x-axis
when ball bounces up, vertical line straight up and then falls back down towards x-axis across the way
this is repeated but line gets shorter each time

S Bryce tutoring (22 decks)

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