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Physics 10 Bc > Velocity and acceleration > Flashcards

Velocity and acceleration Flashcards

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0
Q

A physical quantity that has magnitude but no direction

A

Scalar

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1
Q

Motion with no change in speed or direction

A

Uniform

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2
Q

Describes how much an objects position has changed

A

Displacement

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3
Q

The total length of a journey that an object takes

A

distance

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4
Q

Describes how fast a object is moving,but not its direction

A

Speed

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5
Q

Difference between initial time and final time

A

Time interval

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6
Q

The location of an object as seen by a observer

A

Position

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7
Q

Quantity with both magnitude and direction

A

Vector

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8
Q

Friction like force

A

Air resistance

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9
Q

9.8m/s

A

Acceleration due to gravity

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10
Q

Can be a smooth curve or a straight line

A

Best fit line

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11
Q

Allows us to picture or visualize motion

A

Motion diagram

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12
Q

Describes the speed and direction of motion

A

Velocity

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13
Q

Occurs when the speed of an object changes, or its direction of motion changes, or both

A

Change in velocity

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14
Q

Acceleration that is opposite to the direction of motion

A

Deceleration

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15
Q

The change in an objects velocity (increase or decrease) in a given period of time

A

Acceleration

16
Q

Rate of change in position for a time interval

A

Average velocity

17
Q

When an event occurs

A

Time

18
Q

The rise of a graph over its run

A

Slope

19
Q

Represented by the slope on a velocity-time graph

A

Average acceleration

20
Q

Acceleration is measured in what unit

A) m
B) s
C) m/s
D) m/s2

A

D)m/s2

21
Q

Velocity is measured in what unit

A) s
B) m
C)m/s2
D) m/s

A

D)m/s

22
Q

1km = how many m

A)1
B)50
C)1000
D)100

A

C)1000

23
Q

Define acceleration

A

Rate of change in velocity

24
Q

Change in velocity

A

Final velocity minus initial velocity

25
Q

Define Deceleration

A

Acceleration opposite the direction of motion

26
Q

Acceleration due to gravity

A

9.8 m/s downward

27
Q

Define Air resistance

A

Slows down an object traveling through the air

28
Q

Constant acceleration

A

Represented by a straight line on a velocity-time graph

29
Q

What does the slope of a velocity-time graph represent

A

Average acceleration

Physics 10 Bc (1 decks)

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