Physics: Principles and ProblemS
Physics - ✔️✔️The branch of science that studies matter and energy and their relationship
- helps people understand the physical world
-not a body of facts, a process of asking questions and designing theories and experiments
SI system - ✔️✔️A set of standards used by the scientific community
-based on metric system
-involves 7 base units
scientific notation - ✔️✔️A method of expressing a number in the format: M X 10^
- where 1<= M < 10 and n is an integer
-all the sig. digits must be included in M
Significant Figures - ✔️✔️The meaningful digits in a measured or calculated quantity
-includes all known digits reported in a measurement plus one estimated digit
-the last digit given for any measurement is the uncertain digit
g for balance - ✔️✔️mL for cylinder
Know metric conversion - ✔️✔️Kilo hecto deca [] deci centi milli
Counting numbers and defined constants have an infinite number of significant figures - ✔️✔️Know
Know - ✔️✔️Additional/subtraction with significant figures
