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WOD Quiz #1
Green, yellow, & purple sheets
| Question | Answer |
|---|---|
| metric system | A system of measurement based on the number 10 |
| SI | International System of Units. |
| mass | A measure of the amount of matter an object contains |
| weight | A measure of the force of gravity acting on an object |
| volume | The amount of space an object takes up |
| meniscus | The curved upper surface of a liquid in a column of liquid |
| density | A measure of how much mass is contained in a given volume |
| estimate | An approximation of a number based on reasonable assumptions |
| accuracy | How close a measurement is to the true or accepted value |
| precision | How close a group of measurements are to each other |
| mean | The numerical average of the numbers in a list |
| median | The middle number in a list of numbers |
| mode | The number that appears most often in a list of numbers |
| graph | A picture of information from a data table; shows the relationship between variables |
| horizontal axis | A line that runs left to right along the bottom of a graph, on which the manipulated variable (or independent variable) is labeled |
| vertical axis | A line that runs up and down along the side of a graph, on which the responding variable (or dependent variable) is labeled |
| origin | The point where the x-axis and y-axis cross on a graph |
| coordinate | A pair of numbers used to determine the position of a point on a graph |
| independent variable | The variable that is changed on purpose |
| dependent variable | The variable that changes in response to another variable |
| hypothesis | A possible explanation for a set of observations; must be testable |
| controlled experiment | An experiment in which only one variable is manipulated at a time |
| operational definition | A statement that describes how to measure a particular variable or how to define a particular term |
| patent | A legal document issued by a government that gives an inventor exclusive rights to make, use, or sell an invention for a limited time |
| technology | How people modify the world around them to meet their needs or to solve practical problems |
| obsolete | No longer in use |
| prototype | A working model used to test a design |
| engineer | A person who is trained to use both technological and scientific knowledge to solve practical problems |
Created by:
mcdankid7
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