Lab 1.2
BACKGROUND:
Technology uses productive tools. These tools often employ one or more of the six basic mechanisms. these mechanisms are the elver, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw.
SITUATION:
The SCIENCE EXPERIMENTS COMPANY markets instructional kits for use in elementary and middle school science programs. They have hired you as a designer for their physics kits.
CHALLENGE:
Design a kit that contains common materials, such as tongue depressors, mouse traps, rubber bands, thread spools, small wooden blocks, or string. Develop a technological device (machine) using these materials that contains a power source and employs at least three basic mechanisms to lift a tennis ball at least 6 inches off a table.
I reallly need help on this. There is just no way I can do these, but I have no choice. Please help me!
1. Restate the SITUATION described in your own words, being sure to include all of the facts in the information given. Also state any restrictions in your design that would need to be considered based on the age of the students.
-I have been hired by the Science Experiments Company to design a physics kit for the company to sell. This kit will allow one to experience the six basic mechanisms. The designed kit needs to keep in mind restrictions, such as level of knowledge, skill, and safety when dealing with school aged students.
2. The CHALLENGE for this problem contains a partial list of common materials that could be used in your physics kits. Write these in the spaces provided along with six other everyday items that could be used in building basic mechanisms.
-1. Tongue depressors, 2. Mouse traps, 3. Rubber bands, 4. Thread spools, 5. Small wooden blocks, 6. String, 7. Marbles, 8. Sandpaper, 9. Toothpicks, 10. Dried beans, 11. -, 12. –
I need help finding the last two
3. On graph paper, sketch two machines that could be built from your list of materials that also satisfy the CHALLENGE criteria. Label these Machine 1 and Machine 2.
???
To find the remaining two everyday items that could be used in building basic mechanisms, you can brainstorm items that you think would be suitable for the challenge criteria. Here are a few suggestions to help you complete the list:
11. Rubber gloves: These can be used to provide grip or protection when handling certain materials or components in your machine.
12. Springs: Springs can be used to provide tension or elasticity in the mechanisms, allowing for movement or force transfer.
Now that you have the complete list of materials, let's move on to sketching two machines on graph paper that satisfy the challenge criteria.
Machine 1:
You can design a machine that utilizes three basic mechanisms to lift a tennis ball at least 6 inches off a table. Here is a suggestion for Machine 1:
- Use tongue depressors to create an inclined plane by arranging them in a ramp-like structure.
- Attach a rubber band to one end of the ramp and secure the other end to a mouse trap.
- Place the tennis ball at the bottom of the ramp.
- Activate the mouse trap, which will create tension in the rubber band, thus pulling the ball up the inclined plane and lifting it at least 6 inches off the table.
Machine 2:
Here is a suggestion for Machine 2:
- Use small wooden blocks to build a platform or base.
- Attach a thread spool to one end of the platform using toothpicks or glue.
- Wind a string around the thread spool.
- Attach the other end of the string to a wedge made from tongue depressors.
- Place the tennis ball on the wedge.
- Rotate the thread spool, which will tighten the string and cause the wedge to lift the ball at least 6 inches off the table.
These are just two examples, and you can modify or come up with your own designs using the list of materials provided. Remember to label them as Machine 1 and Machine 2 on your graph paper sketch.
I hope this helps you with your physics kit design! Good luck!