Ple help me bros and sis in physics
Question-Write an experiment or activity to determine the volume of metal piece including aim,appartus,procedure,result,precaution .
Correct answer will get points, brainlist from me and i will follow too.
Answers
How Well Does It Conduct?
Metals are excellent conductors of heat and electricity—heat energy and electrons travel very quickly through them. You can experiment with both heat and electricity conduction using items from around your house. (Adult supervision recommended.)
Collect a metal spoon, wooden spoon, and other kitchen implements to compare heat conductivity. Set them in a glass jar of hot, but not boiling, water. Which ones heat up fastest? The ends of the metal utensils should have felt hot first, because they conduct heat better. For a little more excitement, try this activity again using only metal utensils, with a dab of cold butter on top of each utensil. Which one loses its butter first? Why might that be? Look at each utensil’s handle thickness and length as well as its top surface area (e.g., a wire whisk has less surface to heat the butter than a ladle does) for clues. Also, keep in mind that some metals conduct heat better than others do.
Test an Object for Electric Conductivity
What You Need:
C- or D-size battery
Aluminum Foil
Flashlight or other 1.5- or 3-volt bulb
What You Do:
Testing an object for conductivity
1. Make a long ribbon wire out of the foil by cutting a piece about 18′ x 2′. Fold the foil lengthwise in fourths so that you form a ribbon. Hold or tape one end of this wire to the flat end (negative terminal) of the battery and wrap the other end tightly around the ‘threaded’ (screw) sides of the light bulb.
2. Now you’re ready to test various objects around your house to see if they conduct electricity. Do this by pressing the positive terminal of the battery (the end with a bump) to one side of an object, and the metal end of the light bulb to the other side. If the bulb lights up, a series circuit was formed: electric current can pass unobstructed through the wires from the battery to the light bulb to the battery again.
What are some variables that could keep the light bulb from shining even if the object it was touching was metal? Even though an object may be metal and otherwise a great conductor of electricity, a plastic or paint coating on it could break the circuit connection.
- Safety note: Remember never to insert wires or another object into electrical outlets! The electricity generated by the battery for this experiment is in a safe amount, however. I THINK IT MAY BE THE ANSWER.......
Explanation:
Divide the mass by the volume to calculate the density of the metal. For example, if the mass was 7.952 pounds and the volume was 28 cubic inches, the density would be 0.284 pounds per cubic inch.