Chapter 10- Motion Flashcards

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1
Q

Motion

A

when an object changes its position from the starting point

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2
Q

Reference point

A

the starting point of a motion

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3
Q

Displacement

A

the change in the objects position

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4
Q

Speed

A

distance/time is the formula when a motion occurs

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5
Q

Average speed

A

adding the speeds together and divide by the amount that you added together.

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6
Q

Instantaneous speed

A

Is not the same speed in intervals of time

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7
Q

Velocity

A

similar to speed, but also includes direction

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8
Q

Resultant Velocity

A

objects moving in the same or opposite directions can be determined with math.

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9
Q

Acceleration

A

a change in velocity. Whether it is speed, direction, or both.

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10
Q

Centripetal acceleration

A

an object moving in a circular motion

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11
Q

Constant acceleration

A

when velocity changes at the same amount through intervals of time.

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12
Q

Force

A

action on an object to change state of rest or object

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13
Q

Net force

A

the combination of all forces acting on an object

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14
Q

Balanced force

A

when an object has equal force and remains at rest

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15
Q

Unbalanced force

A

when an object has uneven forces acting upon it and moves the object

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16
Q

Friction

A

Force opposes motion between two surfaces in contact

17
Q

Sliding friction

A

Objects slide past each other.

18
Q

Rolling friction

A

Round object rolls over flat surface

19
Q

Fluid friction

A

When something is sliding through the air

20
Q

Static friction

A

Friction between two objects in rest

21
Q

Kinetic sand

A

Friction between two surfaces sliding over each other