Section 1 Test Review

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Section 1 Test Review
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• write this number in scientific notation
  .00000987

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9.87 x 10-6
4

• 12.0 x 4 ______ to the correct of sig
  figs

5
50 or 5 x 101
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• how many sig figs does this number have 0.00340?

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3
8

• The __________ variable is always displayed on
  the x-axis?

9
Independent
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What type of mathematical relationship is
displayed graphically with a parabola?
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Quadratic
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From the data shown below of the distance a bike
is travelling, how far could this bike travel in
120 seconds??

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333.33 m
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From the data below how much time would it take
the bike to travel a distance of 500 meters?
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180.25 s
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• To calculate a hypothetical data point outside
  the range of data that was actually found is
  called ________

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Extrapolation
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• 34.5 km ____________ cm

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• 3450000 cm

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• How would you record this measurement??

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25.46 cm
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Is this set of data accurate, precise, both or
neither??

• Accepted value 9.8
• Data set
• 6.9, 6.85, 6.6, 7.0, 7.05

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Precise
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Physics is the study of what??
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Matter Energy
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Precision has to do with how well measured values
agree with ____.
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Each Other
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Name 4 things that must be included on a graph
made in microsoft excell
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• Trendline, equation of trendline, chart title,
  axes titles, change the symbols of the equation
  from x y to whatever is relevant.

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What are the 3 fundamental quantities?
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Length, mass, time
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What are the base units for these 3 quantities?
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Meter, kilogram, second
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The unit for acceleration (m/s2) would be
considered to be a ______ unit, since it is
composed of the the base units of the fundamental
quantities
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Derived
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25 mg ________ kg
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.000025 kg
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in y mx b format, the m represents what??
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Slope
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How can you find slope of a graph?
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• Rise
• Over
• Run

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3.561 cm x 2.0 cm ______ to correct number of
sig figs
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7.1cm even though the calculator answer is 7.122
cm
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How many sig figs. in this number? 22.070 _
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5
46
How many sig figs in this number 25000.0?
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6
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When multiplying sig figs the answer should
always have as many __________ as the least
number of _________ in the problem?
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Sig figs
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41.2 km ______cm
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4,120,000
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36 kg _____g
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36000
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How many sig figs in 0.003050
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4
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The mathematical relationship that is represented
by a hyperbola is called a ______ relationship.
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Inverse
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In the equation Y 1/x, a ____ relationship
exists between x and y
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Inverse
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The _____ variable is always displayed on the y
axis.
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• Dependent

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Solve for x. 12b(3x2-3y)/2
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Sqrt of (24b3y)/3
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Write this number in scientific notation

• 45000.02

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• 4.500002 x 104

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0.00230 how many sig figs?
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3
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What type of relationship is shown in this graph?

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Inverse graph is a hyperbola
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What type of relationship is shown in this graph?
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Quadratic.
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Which tab button do you need to go to in order to
add chart titles???
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LAYOUT tab
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How would you add a trendline to this graph?
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Right click on one of the data points
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1) Based on the graph below, what property
would be represented by the slope of this graph?
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• density

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What would be the value (number) of that
property based on this graph? (include proper
units)
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• 2.5019 g/cm3

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Which value from this data collection is the
independent variable?
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• Volume

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What would the mass be of an object that has a
volume of 12 cm3?? (answer should have correct
number of sig figs)
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• 31 grams

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How many sig figs are in the number .006080 ??
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• four

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24.1 km/ hr _____ m/s

• Show Work!!!

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• 6.69 m/s

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7) 35 m ______ km
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• .035 km

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8) What term means to find a predicted data
point outside of the data range by using the
trend established by observed data?
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• Extrapolate

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9) What term refers to how well a set of
measurements agrees with each other?
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• Precision

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Solutions

• 1) density
• 2) 2.5019 g/cm3
• 3) Volume
• 4) 31 grams
• 5) four
• 6) 6.69 m/s
• 7) .035 km
• 8) Extrapolate
• 9) Precision

95

• Groups of 4 or 5
• Measure height of all four group members in
  metric and in standard units,
• Record to proper number of sig figs
• Determine average height of your group
• Also find mass of each member in kg.
• Plot on mass and height on a graph, and see if
  there is a correlation between mass (y) and
  height (x)
• Compare results with other groups
• According to your groups results what would be
  the mass of a person who had a height of 250
  cm??
• According to your results what would be the mass
  of a person who had a height of 80 cm?? .