 In scientific notation, how is the exponent affected when the decimal is moved to the right?  When the exponent is moved to the right, the exponent decreases.

 Why should you never heat something in a closed container?  Expanding gas may explode

 Why must 10 0 = 1?  A rule holds with all numbers that when you divide the same base that is raised to a power, you subtract the exponents. Since we already know that when you divide a number by itself the answer is one, 10 0 must equal one

 10 1  deka, da

 How do you write in scientific notation and fractional form? .007  7x  7/1000

  pico p

 A factor (number or concept) that does not change when other variables change  Constant

 What is the difference between a base unit and a derived unit?  A base unit is a single unit where a derived unit is a combination of base units.

 A representation of an idea, event, or object to help people understand it.  Model

 A type of experiment done to eliminate bias. Neither the subjects nor the researchers know who or what is the experimental or control group.  Double blind experiment

 Information that cannot be assigned a numerical value  Qualitative data

 How do you test a hypothesis?  Perform an experiment

 Reading into a graph from beyond the given data. Making a guess or an estimate  Extrapolate

 Name the instrument and state its purpose  Test Tube: Used to mix, measure, or heat liquids

 10 3  Kilo k

  Tera T

 Why was scientific notation developed?  To write very small numbers and very large numbers with ease  To simplify scientific calculations

 What is this and what is its purpose?  Triple Beam Balance; Measures mass in grams

 Why should no experiment be considered a failure?  An experiment with unexpected results provides a chance to learn something new. Excluding possibilities is as important as the discovery.

 Why have we not yet fully adopted the metric system?  We were already significantly more advanced in industry when the rest of the world adopted the metric system. Because of the cost involved in switching over, we developed a 50 year plan. It has been 60 years

 SI unit for luminous intensity?  Candela

 A ratio equal to one that expresses the same quantity in 2 different ways.  Conversion factor

 Mass of cubic meters of water.  Kilogram

 The mass of one specific platinum-iridium alloy cylinder.  Kilogram

 What is the equation for percent error?  |Value A –Value E | / Value A X 100

 What are the 7 base quantities and units in the SI system? LengthMeter MassKg TimeSecond TemperatureKelvin Electric CurrentAmpere Amount of a SubstanceMole Luminous Intensitycandela

 The continuing search for scientific knowledge. Studying natural phenomena simply for the purpose of increasing our knowledge.  Pure science

 Deci  10 -1

 Tera  10 12

 Exa  10 18

 The identification of the components and composition of materials  Analytical chemistry

 An inaccuracy in reading a measurement based upon angular difference  Parallax

 A hydrogen atom has a diameter of 10nm. Express this in mm  1x10 -5 mm

 9,192,631,770 times the period of a radio wave emitted from a cesium-133 atom  A second

 Peta  10 15

 When is it ok to use broken or chipped glassware?  NEVER

 10 6  Mega M

 What are the basic steps in the scientific method?  Observe, question, hypothesis, experiment, collect data, draw conclusions

  Micro

 Why is this incorrect? 1 cm=_____m (1cm)(1m/10 -2 cm)  Although centi does mean 10 -2, 1m is not equal to that.

 When is it necessary to wear safety goggles and an apron?  When using heat, chemicals, or glassware

NameSymbol# Picop Nanon10 -9 Microµ10 -6 Millim10 -3 Centic10 -2 Decid10 -1 TeraT10 12 GigaG10 9 MegaM10 6 Kilok10 3 Hectoh10 2 dekada10 1

 The group designed with a variable to test the hypothesis  Experimental group

 Mass/Volume; kg/m 3  Density

 Springs, Pendulums, Sound  Vibrations and Wave Phenomena

 This type of graph is used to compare or contrast data  Bar graphs

 Using specific observations and measurements to enable a scientist to arrive at a generalized explanation of a scientific problem which can be expressed as a hypothesis or theory  Inductive Reasoning

 A mathematical or numerical statement that describes a phenomena or event  Quantitative Description

 Falling Objects, friction, weight, spinning objects  Mechanics

 The atom and its parts  Quantum Mechanics

 Applying logic and reason to observations and conclusions  Critical thinking

 A property that depends on the amount of matter present  Extensive property

 Giga  10 9

 A property that doesn’t depend on the amount of matter present  Intensive property

 Two branches of Earth Science are…  Geology and meteorology

 Graphs best used to show a trend. Graphs that show how one variable changes with respect to another  Line graph

 A graph used to show the parts of a whole  Circle graph or pie chart

 What are three standards that a theory must meet?  Must explain observations, must be able to repeat experiments, and must be able to predict from the theory

 Two branches of physical science are…  Physics and chemistry

 A system of knowledge based on facts or principle  science

 What are the two main branches of science?  Social science and natural science

 What is the SI unit for length?  meter

 What is the SI unit for time?  seconds

 The total distance covered divided by the total time  Average speed

 What is the difference between speed and velocity?  Velocity is a vector while speed is merely a magnitude. Vector quantities have both magnitudes and direction while scalar quantities such as speed have only a magnitude.

 What does the area beneath a v-t graph represent  Distance

 What is the difference between distance and displacement?  Distance is the sum of the total lengths traveled while displacement is the straight line distance between the start and end points

 What is the SI unit for velocity?  m/s

 What is the SI unit for time?  second

 A complete explanation of how or why something happens based on research and testing  theory

 Name this instrument and its purpose  Erlenmyer flask; used to mix liquids

 A standard by which results are compared  control

 A statement that seems to always be true  Law

 What would be the SI unit for electric charge?  The coulomb

  nano

 Any type of information that can be expressed as a number  Quantitative data

 An explanation of an event based on knowledge gained from observations  theory

 What should be done prior to starting an experiment?  READ DIRECTIONS

 A value that changes because of the other variables in the experiment  Dependent variable

 In scientific notation how is the exponent affected when the decimal is moved to the left  The exponent increases

 A quantity that can have more than a single value  variable

 The variable that is changed to see how it affects the dependent variable  Independent variable

 What is the SI unit for the amount of a substance?  mole

 A statement that gives the best possible response to the question and should be based on already known facts. May not yet be tested. An educated guess  hypothesis

  milli

 How do you write 0.1 in scientific notation and fractional form?  1x /10

 10 9  Giga

 The group in an experiment that is maintained at a constant state for the course of the experiment  Control group

 Does the speedometer of a car read instantaneous speed or average speed?  Instantaneous speed

 The rate at which velocity changes  acceleration

 What is the SI unit for acceleration?  m/s/s

 What does the slope of a v-t graph represent?  acceleration

 What does the area beneath an a-t graph represent?  velocity

 Speed at any instant  Instantaneous speed

 A type of velocity that does not vary  Constant velocity

 What is the unit for distance?  Meter

 What does the slope of a d-t graph represent?  velocity

 Why are the constant speed and constant velocity not the same?  Velocity is dependent on the direction