Motion Flashcards

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1
Q

Speed

A

How fast an object is moving = D/T

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2
Q

Velocity

A

An objects speed and direction =D/T

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3
Q

Acceleration

A

Changing velocites

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4
Q

Positive Acceleration

A

Speeding up

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5
Q

Negative Acceleration

A

Slowing down

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6
Q

Reference Point

A

A location or object that is being used to compare another objects motion

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7
Q

What type of motion does this show?

A

Backwards constant velocity

the distance is decreasing from 3 to 0

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8
Q

What type of motion does this show?

A

Constant Speed or Constant Velocity

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9
Q

What type of motion does this show?

A

Speeding up

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10
Q

What type of motion does this show?

A

Constant Speed or Constant Velocity

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11
Q

What type of motion does this show?

A

Not moving

The distance stays at 3 m the entire time

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12
Q

What type of motion does this show?

A

Slowing down

The slope of the line starts high (fast motion) then flattents out (slow motion)

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13
Q

What type of motion does this show?

A

Constant Velocity

The velocity of the line is always 5 m/s

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14
Q

What type of motion does this show?

A

Not Moving

Velocity is always zero

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15
Q

What type of motion does this show?

A

Decreasing Velocity or Slowing Down

V starts at 5 and decreases to 0

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16
Q

Assume these are all Velocity vs Time graphs. Which shows backwards motion?

A

Graph D

it shows a negative velocity which is backwards motion

17
Q

What type of motion does this show?

A

Increasing Velocity or Speeding UP

V starts at 0 and decreases to 10

18
Q

You are on a train taveling at 10 m/s to the north with the ground as the reference point. You are seated next to your best friend. How fast are you moving compared to your friend?

A

0 m/s

19
Q

You are on a train taveling at 10 m/s to the north with the ground as the reference point. You you walk to the front of the train at 2 m/s. How fast are you moving compared to the ground?

A

12 m/s north

20
Q

You are on a train taveling at 10 m/s to the north with the ground as the reference point. You you walk to the front of the train at 4 m/s. How fast are you moving compared to the ground?

A

14 m/s North

21
Q

You are on a train taveling at 10 m/s to the north with the ground as the reference point. You you walk to the back of the train at 2 m/s. How fast are you moving compared to the ground?

A

8 m/s north

22
Q

You are on a train taveling at 10 m/s to the north with the ground as the reference point. You you walk to the back of the train at 7 m/s. How fast are you moving compared to the ground?

A

3 m/s north

23
Q

You are on a train taveling at 10 m/s to the north with the ground as the reference point. You you walk to the back of the train at 12 m/s. How fast are you moving compared to the ground?

A

2 m/s south

24
Q

You are seated on a train taveling at 10 m/s to the north with the ground as the reference point. Your friend is seated on a train headed south on the same track at 15 m/s. How fast is your friend moving with you as the reference point?

A

25 m/s south