Motion Quiz Flashcards

(34 cards)

1
Q

in a velocity-time graph, what motion is being demonstrated if the line resides above the 0 axis

A

forward motion

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2
Q

in a velocity-time graph, what motion is being demonstrated if the line resides below the 0 axis

A

backwards motion

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3
Q

in a velocity-time graph, what motion is being demonstrated if the line resides at the 0 axis

A

no movement

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4
Q

what is the form of scientific notation and what do the variables represent

A

n x 10^a where n represents any integer between 1 and 10 and a represents however many times you moved the decimal to the left or right to translate the original number to a number suited for n

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5
Q

what do you need to do in order to add or subtract in scientific notation

A

you have to make sure that the exponents are the same

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6
Q

what does E mean in scientific notation

A

10

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7
Q

what is uniform motion

A

when an object is travelling at a constant rate of motion

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8
Q

what are the two types of graphs that can be used to represent uniform motion

A

distance-time and speed-time

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9
Q

what does the slope of a distance-time graph show

A

the speed of an object

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10
Q

what does uniform motion look like in a distance-time graph

A

a straight upward line to the right

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11
Q

what does uniform motion look line a speed-time graph

A

straight horizontal line

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12
Q

how can you determine the distance travelled in a speed-time graph

A

by calculating the area under the line of the graph

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13
Q

what does velocity describe

A

both the rate of motion and the direction of an object

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14
Q

how do you know the variable represents velocity and not speed

A

you put an arrow on top of the v

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15
Q

what is a scalar quantity

A

quantity that describes magnitude or size

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16
Q

whats a vector quantity

A

quantity that describes magnitude and direction

17
Q

how are all vector quantities written

A

with an arrow above the symbol for the measured quantity

18
Q

what is displacement

A

the change in position of an object from a reference point

19
Q

what is distance

A

total length travelled between the start and endpoint

20
Q

what is average velocity

A

uniform motion that involves changing a position in a specified time

21
Q

what two types of graphs can be used to visualize average velocity

A

position-time and velocity-time

22
Q

what is acceleration

A

change in velocity during a specific time interval

23
Q

when does positive acceleration occur

A

when both the change in magnitude and the direction of a velocity are positive

24
Q

when does negative acceleration occur

A

when the change in the magnitude of the velocity Is negative while the direction is positive

25
what is the line of best fit for an object travelling in uniform motion look like
straight
26
what does the line of best fit look like for accelerated motion
smooth curve
27
how do you write the direction
in square brackets beside the magnitude
28
what is the typical motion pattern of an object
an s curve on a position-time graph
29
how do you round when adding or subtracting
round off the answer to the least number of decimal places found in the question
30
how do you round when adding or subtracting more than one size of unit
covert all of the values to the largest unit, then add or subtract, then round to the least number of decimal places found in the question
31
what happens when you convert a number to a smaller unit
you get a bigger number
32
what happens when you convert a number to a bigger unit
you get a smaller number
33
how do you do unit conversions on the periodic table chart
if you move up on the chart, move decimal to the left, if you move down on the chart move the decimal to the right
34
how do you change units using fractions
multiply by a series of factors so that the units you do not want will cancel out and the units you want will remain