lab safety/symbols
do you need to wear goggles in the lab?
yes
the study of the fundamental laws of nature
physics
what is the 1st step of the scientific method?
observation
what is the independent variable?
The variable you change in the experiment.
who do you notify when something goes wrong?
the teacher
what is velocity?
Describes the rate of motion and the direction of motion
name a scientific law
newton's law of motion, Hooke's law, Universal law of gravity, etc.
what is the dependent variable?
The variable you measure to see how it depends on the independent variable.
what should you wear in a lab?
closed-toed shoes, long hair tied back, googles, & appropriate clothing/lab coat
what is a scientific notation?
expresses a value as a number between 1 and 10 times an appropriate power of 10.
what is a hypothesis?
a detailed scientific explanation for a set of observation that can be certified or rejected by careful experiments.
the 3 base units for length, time, and mass
meter, second, and kilogram
name 3 safety symbols
animal hazard, heat hazard, glassware hazard, chemical hazard, electrical hazard, eye/face hazard, fire hazard, biohazard, radioactive, ETC.
what is a linear relationship?
Exists between two quantities that form a straight line on a graph
infer is
a logical interpretation of your obersertativions
difference between scalar and vector
Scalar is a quantity represented by a number with a unit. Vector is consisted of both numerical values with its unit and a direction.
should you eat/drink in the lab?
no
what is scientific theory?
Detailed explanation of some aspect of nature that accounts for a set of well-tested hypotheses.
what is the last step of the scientific method?
conclude
using dimensional analysis, how many seconds are in a week
60 secs = 1 min, 60min = 1 hour, 60 x 60 = 3,600 seconds in 1 hour, day = 24 hours, 3,600 x 24 = 86,400 seconds in a day, 7 days in a week 86,400 x 7
604,800 seconds in a week