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What is an activity that would show graphite is a good conductor of electricity?
Take a pencil made of wood and sharpen it from both ends such that the tips become clear. Those black parts of pencil are graphite. Take a wire connect it to the bulb, then to a battery and connect the both ends of the pencil to the wire forming a circuit. When current flows from battery, it goes through wire and bulb lightens. Since the pencil is connected in the circuit, current also passes through it. It shows that it is a good conductor of electricity.
Can you measure a pencil with as meter stick?
Yes, a meter stick can be used to measure the length of a pencil in centimeters or millimeters. The pencil's length can be aligned with the meter stick, and the measurement can be read where the pencil ends.
If electrons in a DC circuit travel from the negative to positive ends of a conductor do the electrons in an AC circuit simply vibrate back and forth and never reach either end?
In an AC circuit, the electrons do not simply vibrate back and forth. They move in one direction and then reverse their direction in a cyclic manner, creating an alternating current flow. The electrons do reach both ends of the conductor, but their overall movement is oscillatory rather than unidirectional.
TENSION?
The pull or compression of a string or spring at both of its ends
What sticky ends does EcoR1 create?
EcoR1 creates sticky ends with a sequence of 5'-GAATTC-3'. This results in protruding ends with a 5' overhang on both strands of the DNA.
Pencils sharpened at both ends can be used as electrodes Why?
Pencil sharpened at both ends allows electricity to pass through it because pencil lead is actually made of graphite which is a good conductor of electricity, so when you sharpen the pencil at both ends electricity can pass from one end, through the lead to the other end
Why can a pencil sharpened at both ends be used as a conductor in laboratories?
Despite the name "Pencil Lead", pencils actually have no real lead in them. They are a graphite/clay that has a slightly shiny slate gray look that resembles lead.Take your pencil, sharpened on both ends, or at least having access to the lead and the wood on both ends (and not being cracked in the middle).Set your multimeter to Ohms (it doesn't really matter what level, somewhere in the middle). It should read 0 when the probes are separate, and 0 when they touch.Now, touch the wood on both ends, and does it conduct?Touch the lead on on one end and wood on the other end. Does it conduct?Touch the lead on both ends. Does it conduct?Wood is mainly long chain carbon-hydrogen chains and carbohydrate chains, etc. Mainly desaturated (single bonds). And, it turns out to be a relatively non conductive.Graphite, on the other hand, has what is called delocalized bonds from the basic unit which is like benzine with essentially 1 1/2 bonds all the way around it.See Wikipedia Articles:http://en.wikipedia.org/wiki/Benzenehttp://en.wikipedia.org/wiki/Delocalized_electronhttp://en.wikipedia.org/wiki/GraphiteThe basic unit of graphite is the benzine ring with delocalized electrons.Graphite is a mesh of benzine rings, without the hydrogen atoms, but delocalized electrons and essentially 1 1/2 bonds throughout.These delocalized electrons actually make graphite act very much like a metal and makes it an excellent electrical conductor.See Wikipedia Article on Metallic Bonds:http://en.wikipedia.org/wiki/Metallic_bondImages are from Wikipedia from pages referenced above, and are part of the Public Domain. Line drawing of delocalized graphite was created by the first editor of this article, and is hereby released into the public domain.
What do Sam and Eric warn Ralph about at Castle Guard?
They warn Ralph that Jack plans to hunt him the next day and that Roger has "sharpened a stick at both ends."
What is a paper stomp?
A "paper stomp" is probably a misnomer for "paper stump," which is a tightly rolled paper, sharpened at both ends, and used by artists to smear or blend charcoal, pencil, or chalk in the drawing process. See http://en.wikipedia.org/wiki/Stump
How do you snap a pencil?
You hold both the ends and push down(or up).
When does roger prepare a sharpened stick at both ends?
-Spoiler warning- The only other time a stick is sharpened at both ends is after Jack killes the sow and offers the head to the beast for protection. It means that Roger wants to murder Ralph, cut his throat, and put his disembodied head on the stick as an offering to Satan.
What has Roger prepared for Ralph?
Roger has prepared a stick sharpened at both ends for Ralph. This means that he has the same end in mind for Ralph as the sow (female pig). The sow was killed rather brutally killed prior to having her decapitated head mounted on a stick sharpened at both ends as an offering to "the Beast." This is a thinly vailed threat on Roger's part.
What is an activity that would show graphite is a good conductor of electricity?
Take a pencil made of wood and sharpen it from both ends such that the tips become clear. Those black parts of pencil are graphite. Take a wire connect it to the bulb, then to a battery and connect the both ends of the pencil to the wire forming a circuit. When current flows from battery, it goes through wire and bulb lightens. Since the pencil is connected in the circuit, current also passes through it. It shows that it is a good conductor of electricity.
What can you infer roger and jack intended to do with the stick that sharpened at both ends?
Roger and Jack likely intended to use the sharpened stick as a weapon. Its design as a spear with both ends sharpened suggests they intended to hunt or harm someone or something. This weapon could have been used for hunting animals or as a tool to establish power or control over others.
What does it mean when samneric state that roger sharpened a stick at both ends in the book lord of the flies?
When Samneric mention that Roger sharpened a stick at both ends in "Lord of the Flies," it signifies the increasingly violent and dangerous nature of Roger. Sharpening a stick at both ends suggests a malicious intent to harm others, foreshadowing the savagery that will eventually consume the boys on the island. It also symbolizes the loss of civilization and the descent into barbarism.
How many faces does a pencil have?
A standard pencil has six faces. These include the hexagonal or cylindrical sides and the two ends: one end is sharpened to a point, and the other is typically flat, often with an eraser attached. The shape may vary slightly depending on the type of pencil, but the basic prism structure remains consistent.
What information does Ralph get from Sam and Eric?
Samneric tell Ralph that Jack intends to hunt him the following morning and that Jack has "sharpened a stick at both ends."
