No. Energy is voltage times charge, so you need a coulomb of charge to get several thousand joules of energy.Difference between electric potential energy and electric potential.
  • How does the charge of one electron compare to that of another electron? How does it compare with the charge of a proton? How do the masses of protons and electrons compare?
  • Why is it dangerous to touch the terminals of a high-voltage capacitor even after the charging circuit is turned off?
  • A balloon may easily be charged to several thousand volts. Does that mean it has several thousand joules of energy? Explain.
  • How does the flow of current differ in a superconductor compared with the flow in ordinary conductors?
It's because you are pretty much completely enclosed by a conducting shell formed by the car body. It's called a "Faraday cage." The electric field inside a conducting shell is zero no matter what goes on outside. When there are holes in the shell (as for the car windows) then the field isn't exactly zero but it is greatly reduced from the outside value. This is related to the shielding effect of the metal full of holes in a microwave oven door. The charge spreads out over the roof surface.As long as you do not touch the roof! There is still a small charge that will hit the car.
  • Why is it dangerous to touch the terminals of a high-voltage capacitor even after the charging circuit is turned off?
  • Why is it safe to remain inside a car during a lightning storm?
  • Why is charge usually transferred by electrons rather than by protons?
  • Why is there no electric field at the center of a charged spherical metal ball?
Electricity at rest, "static electricity"
  • Electricity
  • Why are materials such as glass and rubber good insulators?
  • What happens to electrons in any charging process?
  • Electrostatics
In an electric dipole, positive and negative charges are separated on opposite sides of an object.Distribution of electric charge is not perfectly even.
  • What is the most common net charge of an atom?
  • What is an electric dipole?
  • What is the primary purpose of a lightning rod?
  • What is meant by saying that charge is quantized?
Because a proton has A LOT more mass than an electron. Newton's law F=ma indicates acceleration is related to the mass of the object having the force exerted on it. Since the force is the same in both cases, the acceleration must be lower for the proton because it's mass is higher. I'll show an example where the numbers are no where near real, but it will show the relationship: Proton: F=100 m=20 therefore, a = 5 Electron F=100 m=5 therefore a=20 Notice how (m) times (a) must equal the same value in both cases? That's what's causing the electron to move so much faster, because it's so much less massive.
  • The proportionality constant k in Coulomb's law is huge in ordinary units, whereas the proportionality constant G in Newton's law of gravitation is tiny. What does this indicate about the relative strengths of these two forces?
  • Why is it safe to remain inside a car during a lightning storm?
  • Imagine a proton at rest a certain distance from a negatively charged plate. It is released and collides with the plate. Then imagine the similar case of an electron at rest the same distance away from a positively charged plate. In which case will the moving particle have the greater speed when the collision occurs? Why?
  • Why is there no electric field at the center of a charged spherical metal ball?
A capacitor is used to store charge. It does this by the means of an electrochemical reaction. After the charging circuit is turned off, this charge - if not discharged by any means - is still present in the capacitor. High-Voltage capacitors can amass sufficient current for it to be lethal at said voltage, and they can deliver all of it at the slightest contact.
  • What is a transistor composed of, and what are some of its functions?
  • Why is it dangerous to touch the terminals of a high-voltage capacitor even after the charging circuit is turned off?
  • Why is charge usually transferred by electrons rather than by protons?
  • Why is it safe to remain inside a car during a lightning storm?
Electrons are tightly bound to their atoms, making them poor conductors of heat.The outer electrons belong to particular atoms.
  • Why are metals good conductors of both heat and electricity?
  • Why is charge usually transferred by electrons rather than by protons?
  • Why are materials such as glass and rubber good insulators?
  • How does a semiconductor differ from a conductor or an insulator?
To prevent a fire caused by lightning. If sufficient charge does not leak from air to rod, charge will attract to the rod and direct to the ground instead of building.
  • What is a positive ion? What is a negative ion?
  • What is the most common net charge of an atom?
  • What is meant by saying that charge is quantized?
  • What is the primary purpose of a lightning rod?
Ice crystals are charged by friction and the ground is charged by induction.as warm water vapor rises in the air, it brushes against ice crystals high in the air above, producing a charge (friction).
  • What is a positive ion? What is a negative ion?
  • What kind of charging occurs during thunderstorms?
  • What is a transistor composed of, and what are some of its functions?
  • What kind of charging occurs when you slide your body across a plastic surface?
Place a strong positive charge close to, but do not touch the object to be charged. This pushes the negative charges to the other side of the object. Connect a wire(that is connected to the ground) to the object. The negative charges(electrons) will flow out of the object into the ground. Disconnect the wire. The object is positively charged.
  • Why is it dangerous to touch the terminals of a high-voltage capacitor even after the charging circuit is turned off?
  • How can you charge an object negatively with only the help of a positively charged object?
  • How does the charge of one electron compare to that of another electron? How does it compare with the charge of a proton? How do the masses of protons and electrons compare?
  • Why is charge usually transferred by electrons rather than by protons?
Gravity fields made by mass, electric fields made by charge
  • Give two examples of common force fields and name the sources of these fields.
  • Why are metals good conductors of both heat and electricity?
  • Which part of an atom is positively charged, and which part is negatively charged?
  • How does one coulomb of charge compare with the charge of a single electron?
1.5 joules1 volt = 1 joule/coulomb
  • Why does the gravitational force between Earth and Moon predominate over electrical forces?
  • How does one coulomb of charge compare with the charge of a single electron?
  • Which part of an atom is positively charged, and which part is negatively charged?
  • How much energy is given to each coulomb of charge that flows through a 1.5-V battery?
The nucleus is positively charged and the electron cloud is negatively charged.
  • Which part of an atom is positively charged, and which part is negatively charged?
  • Why are metals good conductors of both heat and electricity?
  • Where is the energy stored in a capacitor?
  • Why does the gravitational force between Earth and Moon predominate over electrical forces?
The outer shell electrons in metals are free to move from atom to atom."loose" outer shell e-
  • Why are metals good conductors of both heat and electricity?
  • How is the direction of an electric field defined?
  • Why are materials such as glass and rubber good insulators?
  • Which part of an atom is positively charged, and which part is negatively charged?
A semiconductor is neither a good conductor nor a good insulator - it has a middle range of resistivity.fair insulator in pure crystalline form, excellent conductor when e- added or removed
  • What is a transistor composed of, and what are some of its functions?
  • How does one coulomb of charge compare with the charge of a single electron?
  • What is a positive ion? What is a negative ion?
  • How does a semiconductor differ from a conductor or an insulator?
Coulomb's force is much 'stronger' than Gravitation. If 2 objects are repelled from each other due to electrical repulsion, they would have to be VERY massive (in relation to the small electric potential causing the repulsion) in order for the Gravitational force to cancel out the Coulomb force.
  • How does the charge of one electron compare to that of another electron? How does it compare with the charge of a proton? How do the masses of protons and electrons compare?
  • How can you charge an object negatively with only the help of a positively charged object?
  • The proportionality constant k in Coulomb's law is huge in ordinary units, whereas the proportionality constant G in Newton's law of gravitation is tiny. What does this indicate about the relative strengths of these two forces?
  • Why is there no electric field at the center of a charged spherical metal ball?
Newton's law of gravitation is attractive, whereas Coulomb's law is attractive or repulsive. Both are proportional to the inverse square of distance.
  • How does a semiconductor differ from a conductor or an insulator?
  • How is Coulomb's law similar to Newton's law of gravitation? How is it different?
  • How does the flow of current differ in a superconductor compared with the flow in ordinary conductors?
  • What is meant by conservation of charge?
ordinary conductors have a small resistance to the flow of electric charge, but Superconductors have infinite conductivity (current flows forever)
  • How does the charge of one electron compare to that of another electron? How does it compare with the charge of a proton? How do the masses of protons and electrons compare?
  • How does one coulomb of charge compare with the charge of a single electron?
  • How does a semiconductor differ from a conductor or an insulator?
  • How does the flow of current differ in a superconductor compared with the flow in ordinary conductors?
A positive ion is a neutral atom that has lost one or more electrons. A negative ion is a neutral atom that has gained one or more electrons.
  • What is the primary purpose of a lightning rod?
  • What is meant by saying that charge is quantized?
  • What is a positive ion? What is a negative ion?
  • What is a transistor composed of, and what are some of its functions?
Net charge cannot be created or destroyed.
  • How is Coulomb's law similar to Newton's law of gravitation? How is it different?
  • What is meant by conservation of charge?
  • What is meant by saying that charge is quantized?
  • Where is the energy stored in a capacitor?
Charging by friction occurs. Electrons are transferred when one object rubs against another.*same with socks on carpet!
  • How does one coulomb of charge compare with the charge of a single electron?
  • Why does the gravitational force between Earth and Moon predominate over electrical forces?
  • What kind of charging occurs when you slide your body across a plastic surface?
  • What kind of charging occurs during thunderstorms?
Electrons transfer from one place to another.
  • What kind of charging occurs during thunderstorms?
  • What is the most common net charge of an atom?
  • What happens to electrons in any charging process?
  • Why are materials such as glass and rubber good insulators?
Protonor electron
  • Which particle has exactly one quantum unit of charge?
  • Why are metals good conductors of both heat and electricity?
  • Which molecule is an example of a common electric dipole?
  • Which part of an atom is positively charged, and which part is negatively charged?
A transistor is made of thin layers of semiconducting materials sandwiched together. It can be a switch, an oscillator, or an amplifier.Behaves as both conductor and insulator (thus on/off switch, up/down amplifier)
  • What is a transistor composed of, and what are some of its functions?
  • What is the primary purpose of a lightning rod?
  • What is a positive ion? What is a negative ion?
  • Why is it dangerous to touch the terminals of a high-voltage capacitor even after the charging circuit is turned off?
An electrically polarized object can have zero net charge, while a charged object cannot have zero net charge.Polarized: one side of atom is more +, other side is more -.Charged: entire atom is either + or - charged.
  • How does a semiconductor differ from a conductor or an insulator?
  • Why does the gravitational force between Earth and Moon predominate over electrical forces?
  • How does the charge of one electron compare to that of another electron? How does it compare with the charge of a proton? How do the masses of protons and electrons compare?
  • In terms of net charge, how does an electrically polarized object differ from an electrically charged object?
The energy is stored in the electric field between the plates.(figure 22.26)
  • Where is the energy stored in a capacitor?
  • What is the most common net charge of an atom?
  • How is the direction of an electric field defined?
  • What is the primary purpose of a lightning rod?
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