*(sample answer/sketch) 15. What medium - liquid, or gas - a sound wave will travel through fastest? Explain your reasoning. Sound will travel fastest through a solid. The particles of a solid are tightly arranged. Therefore, the sound wave can easily propagate (move from one particle to the next). 16. Below is the Engineering Design Process. Given the following scenario, choose 2 steps of the process and explain in detail how you would carry out those steps. (4 points) Scenario: Design a more energy-efficient lighting fixture. sample answers: Step 2: Research the Need or Problem: look at current lighting devices and how they work, research energy-efficient lighting devices and explore how to alter existing devices Step 4: Select the Best Possible Design: Create a design matrix, then use the objectives and constraints you’ve adopted to choose the best design.
Record the sound levels (low, medium, high) in the data table below. Test each tuning fork on the thin block of wood. First hit the tuning fork on the rubber sole of a shoe and then gently place it on the wood block. Listen to the wood and compare the sound. Record the sound level (low, medium, high) in the data table below. Fill your cup/beaker with water up to the half-way mark. Have your partner hold the cup next to ear and then place the tuning fork. First hit the tuning fork on the rubber sole of a shoe and place it upside down, into the water. Test each tuning fork. Record sound level (low, medium, high) in the data table below. your cup/beaker with just about to the top. your partner hold the cup next to ear and then place the tuning fork. First hit the tuning fork on the rubber sole of a shoe and place it upside down, into the water. Test each tuning fork. sound level (low, medium, high) in the data table below. DATA TABLES Tuning Fork Block of Wood Thin Block of Wood Tuning Fork Half Glass of Water Full Glass of Water CONCLUSIONS: How did the sounds produced by the tuning forks relate to the frequencies of the tuning forks?
overall volume cannot be more than 10 the volume of the electronic device 4 3 2 1 Aid) Proposal/visual aid illustrates the team’s steps Proposal/visual aid is easy to read, professional, and overall aesthetically pleasing. 1-2 steps of the process are not outlined or illustrated. Proposal/visual aid all but one of the following: easy to read, well-organized, professional, and aesthetically pleasing. 3-4 of the steps of the process are not outlined or illustrated. Proposal/visual aid meets two of the following: easy to read, well-organized, professional, and aesthetically pleasing. 5-6 steps of the process are not outlined or illustrated. Proposal/visual aid meets one of the following: easy to read, professional, and aesthetically pleasing. All members for an equal amount of time. Team presents information in a professional manner: eye contact, takes responsibility seriously, and is not distracting to the audience. All members speak for an equal amount of time. Team presents information in a professional manner, with 2 aspects : eye contact, takes responsibility seriously, and is not distracting to the audience. Members speak for an unequal amount of time Team presents information in a professional manner with 1 aspect : eye contact, takes responsibility seriously, and is not distracting to the audience. . Members speak for an unequal amount of time.