Scientific Terminology
What is an objective and verifiable observation?
A fact
What power of 10 does "centi-" correspond to?
If my units are cm, how do I cancel my units? Multiply by cm or divide by cm?
Divide by cm
For large numbers, which way do you move the decimal point when converting to scientific notation?
Left
Physics is the study of which two things?
Matter and Energy
List at least one property of a hypothesis.
An educated guess/prediction
Testable
Not yet proven
"If-then(-because)" statement
Convert 670 millimeters (mm) to meters (m).
0.67 m
How many years are in 983 days?
1 year = 365 days
2.76 years
If you're moving the decimal point to the right when converting to scientific notation, what sign is your exponent?
Negative
What are the states of matter?
Solid, Liquid, Gas, Plasma
What are the two major types of observations and their differences?
Qualitative (no numbers) and Quantitative (numbers)
How many kg are in 650 mg?
0.00065 kg (or 6.5E-4 or 6.5*10-4 kg)
Convert 50 cm3 to mL.
1 cm3 = 1 mL
50 mL
What is 0.00981 in scientific notation?
9.81 * 10-3
How might your calculator report the following number: 4*10-12
4E-12
List the steps of the Scientific Method in order.
Observation -> Question -> Hypothesis -> Experiment -> Analysis -> Conclusion (-> Report/Share)
Write what the units are for each of the following: volume, mass, and length.
Convert 1 ft to m.
1 ft. = 12 in.
1 in. = 2.54 cm
100 cm = 1 m
0.3048 m
Convert 81.03 into scientific notation
8.103 * 101
The metric system is what scientists use because the conversions are easier. What is the measurement system that the U.S. and UK use?
The imperial system
A researcher asked "How does the time a person spends on blue screen devices affect the amount of sleep they get?"
The researcher then experiments by having groups either use blue screen devices for 0, 5, or 10 hours a day.
Identify the independent variable, dependent variable, and control.
Independent variable: Time a person spends on blue screen devices
Dependent variable: Amount of sleep the person gets
Control: The group that spend 0 hours on blue screen devices
Write out the letters for each prefix: "milli", "centi", "kilo", and "micro".
m, c, k, ยต
How many cm3 are in 0.05 m3?
100 cm = 1 m
50000 cm3
Convert 2.902 * 104 into standard notation.
29,020
What kind of error applies to the following situation: Dominic wants to prove to his friend that playing competitive sports leads to more violent tendencies, so he goes out of his way to find evidence that agrees with his claim.
Confirmation bias