Module #1 (Lesson 1 and 2) Flashcards
Is a method for studying the natural world.
Science
Studies the energy and the force of the universe
Physics
Scientists who are in the same field as the one conducting similar research.
Peer scientist
pattern of investigation procedures.
Scientific method
Mention the 6 steps of the scientific method
- State the problem
- Gather information
- Form a hypothesis
- Test the hypothesis
- Analyze data
- Draw conclusions
Using your senses to contact the surroundings
Observation
possible answer to a question or a possible solution to a problem based on what u know and what you observe.
Hypothesis
test the effect of one thing on another using a control.
Experiment
is a quantity that can have more than a single value.
Variable
its value changes according to the changes in the other variables.
Dependent variable
variable that is changed to see how it will affect the dependent variable.
Independent variable
a factor that does not change.
Constant
the standard by which test results can be compared.
Control
occurs when a scientist’s expectations change how the results are analyzed or conclusions are formed.
Bias
represents an idea, event, or object to help people better understand it.
Model
is an explanation based on knowledge gained from many observations and investigations.
Theroy
is a statement about what happens in nature and seems to be true all the time.
Scientific law
exact quantity of measurement.
Standard
the amount of space occupied by an object.
Volume
is a measurement of the quantity of matter in an object.
Mass
is the mass per unit volume of a material.
Density
a measure of how hot or cold something is.
Temperature
international system of units. Improved version of the metric system created 1960.
SI
don’t depend on another unit to exist./ fundamental unit that is defined arbitrarily and not by combinations.
Base units
are combinations of two or more base units.
Derived units
space in between two points.
Longitud
Unit: Meter
Symbol: m
Longitude
Unit: kilogram
Symbol: kg
Mass
Gap in between two events
Time
Unit: seconds
Symbol: s
Measurement: chronometer
Time
the amount of kinetic energy on the particles of a substance.
Temperature
unit- kelvin/celsius
symbol- K
measurement tool- thermometer
Temperature
amount of electrons that pass through a conductor in a second.
Electric current
unit- ampere
symbol- s
measurement tool- amperemeter
Electric current
amount of particles in a sample of matter.
Amount of substance
Amount of space
unit- mole
symbol- mol
measurement tool- scale
Amount of substance
the number of photons that emit a ray of light.
Intensity of light
the number of photons that emit a ray of light.
Intensity of light
unit- candela
symbol- cd
measurement tool- photometer
Intensity of light
2 ways to describe something
Qualitative
Quantitative
Two types of sciences:
Social
Natural
How many units are there in SI?
7 units
10 (10^1)
Deca (da)
100 (10^2
Hecta (h)
1,000 (10^3)
Kilo (kg)
1,000,000 (10^6)
Mega (M)
1,000,000,000 (10^7)
Giga (G)
0.1 (10^-1)
Deci (d)
0.01 (10^-2)
Centi (c)
0.001 (10^-3)
Mili (m)
0.000001 (10^-6)
micro (U)
0.000000001 (10^-9)
Nano (N)
