Scientific Method
Definition of hypothesis
A testable statement
Definition of quantity
something that has magnitude, size, or amount.
The single measurement system that Scientists all over the world have agreed on
What is SI
Definition of conversion factors
a ratio derived from the equality between two different units that can be used to convert from one unit to the other.
Formula used to change units in a problem
quantity sought = quantity given x conversion factor
the steps of the scientific method
Observation/ questioning
Examine preexisting research
Hypothesis
Test with experiment
Analyze data
Report conclusion
Definition of volume
the amount of space occupied by an object.
the SI base units
Length, mass, time , temperature, amount of substance, electric current, luminous intensity
Definition of Dimensional analysis
a mathematical technique that allows you to use units to solve problems involving measurements.
How is percentage error calculated
is calculated by subtracting the accepted value from the experimental value, dividing the difference by the accepted value, and then multiplying by 100.
is a liquid that has a temperature of 55.6°C quantitative
Yes
Definition of density
the ratio of mass to volume, or mass divided by volume.
area and volume are example of
SI derived units
Definition of accuracy
refers to the closeness of measurements to the correct or accepted value of the quantity measured.
The conversion of 1.57 km =___ m
1570m
Definition of model
in science is more than a physical object; it is often an explanation o f how phenomena occur and how data or events are related.
derived units definition
Combinations of SI base
terra , gigs , mega, and kilo examples of what
SI prefixes
Definition of scientific notation
is numbers are written in the form M x 10a, where the factor M is a number greater than or equal to 1 but less than 10 and n is a whole number.
The conversion of 1.2 L - ___mL
1200mL
the scientific method definition
a logical approach to solving problems by observing and collecting data, formulating hypotheses, testing hypotheses, and formulating theories that are supported by data.
weight definition
a measure of the gravitational pull on matter.
What is the formula to find area
length x width
Definition of significant figures
a measurement consist o f all the digits known with certainty plus one final digit, which is somewhat uncertain or is estimated.
The difference between directly proportional and inversely proportional
Directly proportional means two quantities move together and Inversely proportional means they move in opposite directions