Kinematics Quiz Flashcards

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1
Q

What are the 2 parts of mechanics?

A

Kinematics and dynamics

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2
Q

The description of how objects move through space and time

A

Kinematics

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3
Q

Deals with force and why objects move as they do

A

Dynamics

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4
Q

Moving without rotating

A

Translational motion

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5
Q

Objects that move along a straight-line path

A

One dimensional translational motion

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6
Q

A point that has no size and can only undergo translational motion

A

Particle

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7
Q

Measurements like position, distance, or speed need this “with respect to”

A

Reference frame

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8
Q

A change in position of an object; how far the object is from its starting point

A

Displacement

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9
Q

Magnitude and direction; displacement has it

A

Vectors

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10
Q

Vectors that point in one direction have a

A

Positive sign

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11
Q

Vectors that point in the opposite direction have a

A

Negative sign

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12
Q

How far an object travels in a given time interval no matter the direction

A

Speed

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13
Q

The total distance traveled along its path divided by the time it takes to travel this distance

A

Average speed

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14
Q

Refers to both the magnitude of how fast an object is moving and the direction in which it is moving; measured in vectors

A

Velocity

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15
Q

Defined in terms of displacement

A

Velocity

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16
Q

Average speed and average velocity have the same magnitude when the motion is

A

All in one direction

17
Q

Time that has passed during chosen period of observation

A

Elapsed time

18
Q

Velocity at any instant of time

A

Instantaneous velocity

19
Q

If an object moves at a constant velocity during the time interval then it’s instantaneous velocity is

A

The same as its average velocity

20
Q

Changing velocity, specifies how rapidly the velocity of an object is changing

A

Acceleration

21
Q

The change in velocity divided by the time taken to make this change

A

Average acceleration

22
Q

The study of the motion of objects and the related concept of force and energy form this

A

Mechanics