Write the rules for identifying significant figures
1
2
3
4
Identify the number of sig figs in each number.
100250102.610.61
1.21.0210.61.601.0006
Round the number to the correct number of sig figs.
106.35247 to 1 sig fig
2 sig figs
3 sig figs
4 sig figs
5 sig figs
6 sig figs
Write the rule used for determining sig figs when adding and subtracting.
5.243 .0054
+ 1.02 + 25.2
Write the rule used for determining sig figs when multiplying and dividing
36.25.45
X 1.5 ------
3.2
Write the metric number line with the prefix and numerical value for each
Write the rules used for converting from one unit to another in the metric system
Convert each measurement
45.2m to cm 45.2m to km
45.2cg to g 45.2cm3 to L
How do you determine how many sig figs to record when measuring?
When measuring with a metric ruler, how many numbers are required to the right of the decimal when recording a measurement in cm’s?
When measuring with a graduated cylinder marked off by ones, how many numbers are required to the right of the decimal?
What are the three steps used when solving problems using formulas?
What is the formula for density?
Determine the density for an object that has a mass of 34.21g and occupies a volume of 28.4cm3?
What volume is occupied by an object that has a mass of 21.3g and a density of.87g/mL?
Determine the volume of the cube.
Define a manipulated variable.
Define responding variable.
Where does the mv go in a data table?
What do all data tables need?
What info do bar graphs best show?
What info do line graphs best show?
Where does the mv go on a graph?
What do all graphs need?
What is a controlled variable?
Write the formulas:
Ideal mechanical advantage (IMA)
Inclined plane
Lever
Actual mechanical advantage (AMA)
Work
Efficiency
How is IMA determined for pulleys?
What is the arrangement of the effort, fulcrum and resistance in a first class lever? Second class lever? Third class lever?
How is work output determined? Work input?
Formulas for Car Project
Speed
Acceleration
Force
Momentum
How are speed and velocity different?
What does the law of conservation of momentum state?
What is inertia? How is inertia determined?
State Newton’s First Law
State Newton’s Second Law
Formulas for Energy
GPE
KE
What is the value for acceleration of gravity?
What is free fall?
What is terminal velocity? What forces (and how) affect falling objects?
**REVIEW THE LABELS FOR EACH FORMULA. HAVE AN UNDERSTANDING OF WHAT EACH FORMULA SOLVES FOR. FOR EXAMPLE, DENSITY GIVES AN IDEA OF HOW HEAVY SOMETHING IS FOR ITS SIZE. WORK INPUT IS WHAT YOU DO TO THE OBJECT- HOW MUCH FORCE YOU USE AND HOW LONG THE RAMP IS, HOW MUCH ROPE YOU PULL ETC.