Principles of Technology - Semester Exam Review Key
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26 terms
Terms | Definitions |
|---|---|
 Pointed away from yourself and others | The correct way to hold a test tube while heating its contents is |
| tied back | You are going to be working with different chemicals and the Bunsen Burner during the lab tomorrow. Your long hair will needs to be |
| Inform the teacher and follow his/her instructions | If you smell a gas leak in the laboratory, you should |
| Dispose of materials according to your teacher's instructions, wipe up your work area, wash your hands, and return to your seat to complete your conclusions | After you've completed your lab activity, you should |
| Goggles are required when working with | fire, chemicals, hot plate, or glassware. |
| You have a beaker of sulfuric acid and wonder what it smells like. You should | Inform the teacher and follow his/her instruction about how to test the odor |
| 1 mL | When measuring a liquid's volume which will give greater precision a graduated cylinder with increments of 1 mL or increments of 2 mL? |
| Increase in growth, speed, | Which of these can be tested through experimentation? |
| Greatest-L Stopped-M Slowest-O |  The graph shows the distance traveled by a vehicle over a certain period of time. Which segment of the graph shows the vehicle moving with the greatest speed, stopped, and the slowest speed? |
| How the type of material affects rebound height |  In an activity, a ball is dropped from a height of 100 cm onto five different materials. The rebound height of each drop is shown in the graph. What is the hypothesis that is most likely being tested? |
| 2.4g | 1 gram equals 1000 milligrams. How many grams equal 2400 milligrams? |
| .750L | A coke has 750mL of liquid in it. What is this in liters? |
| independent | The variable that is always plotted on the X-axis is the |
| dependent | The variable that is always plotted on the Y-axis is the |
| procedure | The steps used to conduct an experiment are called |
| mechanical system | uses gears, chains, levers, to transmit forces. |
| force | is a push or a pull. |
| Newton | is the amount of force required to give a 1-kg mass an acceleration of 1 m/s2. |
| Weight | is the force caused by the Earth's gravity and is directed downward. |
| Weight | depends on location above the earth's center. |
| Mass | is the amount of matter in an object. |
| Vectors | have both direction and magnitude and are drawn as arrows. |
| Balanced | forces are EQUAL and OPPOSITE in direction. |
| Magnitude | is the numerical value of a vector. |
| Unbalanced | forces are not equal and will cause a change in the motion of an object. |
| Equilibrium | is when all the forces are balanced on an object. |
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