Physics Chapter 1 Section 1 + 2 Quiz
16 flashcards
- Model
- A pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept.
- System
- A set of particles or interacting components considered to be a distinct physical entity for the purpose of study
- Hypothesis
- an explanation that is based on prior scientific research or observations and that can be tested
- Controlled Experiment
- An experiment that tests only one factor at a time by using a comparison of a control group with an experimental group
- Accuracy
- A description of how close a measurement is to the true valye of the quantity measured.
- Precision
- the degree ot exactness of a measurement
- Significant Figures
- The digits in a measurement that are known with certainty plus the first digit that is uncertain
- Time SI Unit
- Seconds
- Distance SI Unit
- Meters
- Mass SI Unit
- Kilograms
- Mega (M)
- 10^6
- Kilo
- 10^3
- Centi
- 10^-2
- MIlli
- 10^-3
- Multiplication and Divison Rounding
- To the SF of the number with the least SF
- Addition/Subtraction Rounding
- Matches the # w the least amount of decimal places