How many milliseconds are shown? round to the nearest millisecond (1s = 1000ms)
83,440 ms (60+23)1000+440
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5
What measuring units would be most useful for measuring the length of a mouse? Feet, Inches or Decameters ?
Inches (A large mouse is about 3 inches long)
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10
Maddex hypothesizes that a broken candy wonโt last as long as a whole candy. To test his theory, which extra accurate lab equipment would be most helpful? Super-accurate: stopwatch, weighing scale, thermometer. or camera (explain why)
Super-accurate weighing scale because the test wonโt be โfairโ if the starting weights are not equal.
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5
Two friends who weigh 150 lbs are standing 1 meter (3.3 feet) apart. The gravitational force of attraction between the friends is 10 to the -7th pounds. Write this number as a decimal.
.0000001 lbs
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heart
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seesaw
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baam
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lifesaver
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10
Kimberly found a baby mouse that hops, but is still with it's mom . . . about how many hours old is it?
about 420 hours old (14 - 21 days ~ 17.5 x 24 hours/day = 420)
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5
What is the temperature of the air on a hot day? Select the better estimate. 36 degrees fahrenheit or celsius
36 degrees celsius
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5
Kylie wants to test if she can find two snowflakes that are alike. Which extra accurate lab equipment would be most helpful for his investigation? Super-accurate: stopwatch, weighing scale, thermometer, or camera (explain why)
Super-accurate camera because the snowflakes are more likely to vary visually.
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10
Adin has two solar panels, but he is not sure which panel is not working right. Which extra accurate lab equipment would be most helpful for his investigation? Super-accurate: stopwatch, weighing scale, thermometer, or camera (explain why)
None really, but a Super-accurate thermometer is likely to provide more information than his other options.
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5
What is the average weight of Mice Fuzzies?
4.5 grams (3+6 = 9 and 9/2 = 4.5)
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5
How accurately can a typical stopwatch measure? (1 x 10 to what power?)
To the hundredth of a second (1 x 10 to the -2nd)
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5
What is the mass of the Statue of Liberty? Select the best estimate. 225 pounds, kilograms or tons
225 tons
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10
Typical athletes take between .16 to .2 seconds to react to the starting signal. What is their average reaction time written in milliseconds? (1s=1000ms)