Motion Quiz Flashcards

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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
Q

what is the line of best fit for an object travelling in uniform motion look like

A

straight

26
Q

what does the line of best fit look like for accelerated motion

A

smooth curve

27
Q

how do you write the direction

A

in square brackets beside the magnitude

28
Q

what is the typical motion pattern of an object

A

an s curve on a position-time graph

29
Q

how do you round when adding or subtracting

A

round off the answer to the least number of decimal places found in the question

30
Q

how do you round when adding or subtracting more than one size of unit

A

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
Q

what happens when you convert a number to a smaller unit

A

you get a bigger number

32
Q

what happens when you convert a number to a bigger unit

A

you get a smaller number

33
Q

how do you do unit conversions on the periodic table chart

A

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
Q

how do you change units using fractions

A

multiply by a series of factors so that the units you do not want will cancel out and the units you want will remain