LABORATORY EXPERIMENTS

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HOLT PHYSICS Evaluating Lab Work, Scoring rubrics, continued ▼ Inexperienced level (1 point) • The plan does not show logic or an understanding of the problem presented in the lab. • The plan is unsafe. The plan is not complete and does not address the problem presented in the Invention Lab. The planned procedure will definitely not work. • Proposed data tables are incomplete. • Many serious errors were observed during the lab procedure. There is no logic in the procedure, and there seems to be no understanding of the physics concepts involved in the lab. • Data and observations are incomplete and do not address the problem presented in the lab. The report expresses little logic and contains factual errors. • The final report is incomplete or highly disorganized. There is no attempt to connect the lab and the related physics concepts to draw a conclusion. • The Operation of Invention section is incomplete. There are serious grammatical or stylistic errors. Students do not understand the connection between the initial problem and the outcome of the lab. • Students’ results do not address the problem presented by the lab. The relative error for quantitative answers is less than 80 percent. ▼ Unacceptable level (0 points) • All work is unacceptable. • Major components of the plan are missing. The plan is illogical, unsafe, or irrelevant to the problem presented in the lab. • Few responses are relevant to the lab. • Major components of the lab are missing. Students do not understand the connection between the initial problem and the outcome of the lab work. There is no attempt to connect the lab to the physics concepts involved. • Data and observations are incomplete and do not address the problem presented in the lab. The report expresses little logic and contains factual errors. • The report does not address the problem presented in the lab. The relative error for quantitative data is more than 80 percent. HRW material copyrighted under notice appearing earlier in this book. T14 HOLT PHYSICS Laboratory Experiments Teacher’s Edition
HOLT PHYSICS Evaluating Lab Work, Sample Report Sample Patent Application Lab Report This sample lab report is provided to give your students a model to follow. Your students’ patent applications will not be exactly like this one, but they should contain the same basic parts. 1. Date: May 18, 1999 Title: Doormat Lighting System Inventor: Antonia Briggs Sinh Ngyuen 2. Background—Field of Invention: This invention relates to resistors in direct current circuits, specifically to security lighting. 3. Drawings: Drawing A 4. Description of Drawings: 1 5. List of Reference Numerals: Drawing A Top view of the bottom of the doormat 1 plastic drinking straws, two on ends are 8 cm long, one in center is 4 cm long 2 flat pieces of cardboard, 20 cm × 10 cm, covered with heavy-duty aluminum foil Drawing B Side view of the doormat 1 side view of three plastic drinking straws (see Drawing A: 1) 2 side view of two pieces of cardboard, 20 cm × 10 cm, both covered with aluminum foil 3 connecting wires, connected to top side of aluminum foil Drawing C Circuit diagram 1 Doormat (see Drawing B: 1, 2, and 3) 2 dc battery 3 light bulb 4 insulated connecting wires 2 Drawing B 2 3 HRW material copyrighted under notice appearing earlier in this book. 6. Description of Invention: The Doormat Lighting System consists of a doormat wired in a series circuit with a dc battery and a light bulb. The doormat is constructed by taking two pieces of cardboard or other firm material and covering them with aluminum foil. The aluminum foil is glued or taped securely to the cardboard. On one piece of cardboard, drinking straws are glued securely, one at each end and one in the middle of the cardboard. The straws on the ends should be almost the same length as the end of the cardboard, and the straw in the middle should be about half that length. All straws should be centered lengthwise on the cardboard, so there is equal distance from the end of the straw to the edge of the cardboard on both sides. See Drawing A. 1 Drawing C 2 1 3 4 Sample Lab Report T15
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LABORATORY EXPERIMENTS

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