Lecture 5 Flashcards

1
Q

What is velocity

What is the equation

A

The time rate of change in position

Change in position
________________
Change in time

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2
Q

What is acceleration

What is it a measure of

What is the equation

What quantity is it

A

Change in velocity over time

Measure of how something is speeding up or slowing down

Velocity
____________
Time

It is a vector quantity

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3
Q

What is negative acceleration

A

Slowing down in the POSITIVE DIRECTION

OR

Speeding up in the NEGATIVE DIRECTION

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4
Q

What is average velocity

What is the equation

A

Velocity over some defined intervals

Change in Displacement
_____________
Change in Time

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5
Q

What is instantaneous velocity

A

Velocity at a specific time and space point

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6
Q

If a slope is positive what is the acceleration

What about the opposite

A

Positive

Negative

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7
Q

How do you work out the displacement from a Velocity-Time graph

A

Area under the rectangle for CONSTANT VELOCITY

OR

Area under the triangle for CHANGING VELOCITY

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8
Q

How do you work out the acceleration on a Velocity-Time graph

A

Slope of the curve

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9
Q

What are the 3 different linear kinematics graphs

A

Position-Time Graph

Velocity-Time Graph

Acceleration-Time graph

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