Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
PScienceVocabCh2
| Question | Answer |
|---|---|
| Natural laws | The set of rules that are obeyed by everything that occurs in the universe |
| Inquiry | A process of learning that starts with asking questions and proceeds by seeking the answers |
| Deduce | To figure something out from known facts using logical thinking |
| Objective | Describes evidence that documents only what actually happened as exactly as possibe |
| Repeatable | Describes evidence that can be seen independently by others if they repeat the same experiment or observations in the same way |
| Theory | A scientific explanation supported by a lot of evidence collected over a long period of time |
| Hypothesis | A possible explanation that can be tested by comparison with scientific evidence. Early hypotheses are rarely correct and are often modified as new evidence becomes avalible |
| Scientific Method | A process of learning that begins with a hypothesis and proceeds to prove or change the hypothesis by comparing it with scientific evidence |
| Variable | A quantity that can change, often with a numerical value. For example, position and speed are varibles. |
| Value | The particular number (with units) that a verible may have. For example, 20 feet is a value. |
| Speed. | The distance an object travels divided by the time it takes |
| Average Speed | The total distance divided by the total time for a trip |
| Consistant Speed | Speed that stays the same. Moving at a constate speed means you travel the the same distance each second (like perfect cruise control) |
| Conversion Factor | A ratio used to convert from one unit to another, such as from feet to meters |
| Experiment | A situation specially set up to investigate relationships between variables. |
| Experimental Variable | A variable that changes in an experiment |
| Control Variable | A variable that is kept constant (the same) in an experiment |
| Accuracy | describes how close a measurement is to the true value |
| Average | A mathematical process in which you add up all the values, then divide the result by the number of values |
| Significant Difference | Two results are only significantly different if their difference is much larger than the estimated error |
Created by:
gwen.shepherd
Popular Physical Science sets