Chap 3/4 Flashcards

1
Q

Vector

A

Asks for how far something is and how to get there = displacement
Ex: 3 miles East

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2
Q

Displacement (chapter 3/4)

A

Straight line distance between a and b and direction = angle

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3
Q

Magnitude of displacement

A

Is just asking for the distance

Can be solved by using the Pythagorean theorem

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4
Q

Scalar

A

A number for how far something is or how much it weighs, etc
Ex: 500 grams in a water bottle
Distance

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5
Q

If you found the magnitude of displacement, how do you find just the displacement

A

Well since you have the Amt of straight line distance
You need to find the direction
You can do that by using the calculator
2nd tan

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6
Q

Velocity
Associated with
Vector or Scalar? Why?

A

Velocity - how fast and which way
ex: 65 mph, south
Associated with displacement
Vector because it’s not only just a number but also has direction

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7
Q

Speed
Associated with
Scalar or Vector, why?

A

How fast ex: 55 mph
Associated with distance
Scalar because it’s just a number

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8
Q

Acceleration:

A

Change in speed

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9
Q

+ & -

A

How we distinguish brown speeding up and speeding down
+ = up
- = down

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10
Q

Acceleration unit

What does it mean

A

m/s^2

Meters over seconds squared

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