Chapter 3 Test Flashcards

1
Q

a physical quantity that has magnitude but no direction

A

scalar

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2
Q

a physical quantity that has both magnitude and direction

A

vector

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3
Q

a vector that represents the sum of two or more vectors

A

resultant

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4
Q

vectors indicate:

A

direction

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5
Q

vectors are represented by:

A

boldface symbols

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6
Q

represents the sum of two or more vectors

A

resultant vector

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7
Q

can be added graphically

A

vectors

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8
Q

Vectors can be moved ____ to themselves in a ____

A

Parallel, Diagram

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9
Q

Vectors can be:

A

Added in any order

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10
Q

To ____ a vector, ____ its opposite

A

subtract, add

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11
Q

____ or ____ vectors by scalars results in vectors

A

Multiplying or Dividing

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12
Q

the projections of a vector along the axes of a coordinate system

A

components of a vector

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13
Q

Use the ____ to find the magnitude of a resultant

A

python theorem

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14
Q

Use ____ to find direction of the resultant

A

tangent

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15
Q

the curved path that an object follows when thrown, launched, or projected near the surface

A

projectile motion

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16
Q

use of ____ avoids ____

A

components, vector multiplication

17
Q

Components simplify:

A

Projectile motion

18
Q

Projectiles follow:

A

Parabolic trajectories

19
Q

Free fall with an initial horizontal velocity

A

Projectile motion

20
Q

Use ____ to analyze objects launched at an angle

A

Components

21
Q

____ measurements differ in different ____

A

Velocity, Frames of reference