Is the positivity and negativity of an electric charge related to whether it carries energy or not 5

No, it won't change.

Angry Birds Space Edition, violating the conservation of energy!

Angry Birds Space Edition Planet 1 (Pin Bang) Level 10 Shoot through the middle of the two planets (when there is a brick in the middle, if the brick is knocked off, it will fly out from the right), shoot to the gravitational range (the right end of the edge of the two circles) and then be sucked back to the left by gravity, the kinetic energy first increases and then decreases, the result should not fly out after reaching the left, regardless of whether there is internal resistance, it should fly back to the right, but in the game it flies out from the left! The energy at the right end is set to x (kinetic energy 0 + gravitational potential energy y) Fly back to the left end to energy = kinetic energy greater than 0 + gravitational potential energy y energy is much more inexplicable.

First of all, "charge" is not matter!! It is the property of matter that until now only "recognizes" negative point "property" as a property of electrons.

Electropositivity is a property of protons (although there are immature quarks), and secondly, when a voltage is applied to the two ends of a wire, a light bulb, etc., an electric field builds up inside at close to the speed of light.

The dotted particles move in an electric field, and the electric potential energy is completely converted into light energy, and the electrons are still electrons, because there are no electrons, so there is no negative charge.

Without electricity (charge), how can we talk about "self" energy!

Photoanion and thermoanion.

Question 1: Is there a positive or negative amount of electric charge? Answer: There are positive and negative amounts of electric charge.

Amount of charge: How much an object is charged. Expressed by q, the unit coulomb (c), the amount of charge is a scalar quantity.

The object loses the electron band and plays the positive charge, and the amount of charge is positive.

The object gets electrons negatively charged and the amount of charge is negative.

Question 2: When do I need to substitute the positive and negative signs of the charge amount in the calculation, and when do I not need to? First, there are positive and negative signs of the coincidence key in the electric potential, electric potential difference, electric potential energy, and work done, which are all scalar quantities.

For example: 1The formula w=qed should be calculated with plus or minus signs.

The strict formula is: this work is equal to the electric field e vector Xiaopeng clever point multiplied displacement d vector and then the displacement element is integrated, and then multiplied by the point charge charge q, the electric field e vector point multiplied displacement d vector The result is divided into positive and negative signs.

2 .The u=ed calculation should also be positive or negative, which indicates the increase and decrease of the electric potential. Its positive and negative signs also appear in the results of the electric field e vector point product displacement d vector.

2. The vectors of Coulomb's law, electric field strength, and electric field force do not have plus or minus signs when calculating.

Question 3: Is the amount of charge positive or negative? The amount of charge is a scalar fraction positive or negative.

In nature, there are only two kinds of charges, positive and negative, positive and negative, where the positive and negative signs indicate electrical properties and do not participate in the comparison of size.

There is no positive or negative amount of charge. The amount of electric charge is referred to as electricity, which is the amount of charge carried by the object and the SI unit of electric power is coulomb, symbol c.

Is the amount of charge positive and negative?

The amount of charge is the amount of charge, and the amount of charge is not positive or negative, because it indicates the amount of charge, and the positive and negative of the charge is a relative.

Usually, for the sake of convenience, a negative sign is added in front of the amount of charge of a negative charge to indicate that it is a negative charge, that is, it is directly said that "the charge of a charge is q=-1c"; There is no need to bother to say "a negative electric load with a charge of Q=1C".

Charged charge test method

Under laboratory conditions, the electrostatic properties of the fabric after being charged in the form of friction are evaluated, i.e. the charge surface density of the fabric is tested. The sample is pretreated under the conditions specified in the standard, put into the roller friction machine developed by the Shandong Provincial Institute of Textile Science and Technology for rolling friction, and generate static electricity, implement the GB12014-2009 anti-static work clothes standard, and deliver the friction sample to the LFY-403 friction charged charge test, and read out the charge of the sample through the electrostatic potentiometer.

The amount of charge is a charged charge, so the amount of charge is positive and negative. When the object loses electrons, the amount of charge at this time is positive, and when the object gets electrons, the amount of charge is negative, so the amount of charge refers to the situation when the object is charged.

Amount of charge: How much an object is charged. Expressed by q, the unit coulomb (c), the amount of charge is a scalar quantity.

The object loses electrons and becomes positively charged, and the amount of charge is positive.

The object gets electrons negatively charged and the amount of charge is negative.

Positive charge. It is prescribed that a glass rod rubbed with silk carries a positive charge.

Negative charge: It is stipulated that rubber rods rubbed with fur carry a negative charge.

Charge Quantity Formula:

q=it (where i is the current, unit a, t is time, unit s).

q=ne (where n is an integer, e is the meta-charge, and e=coulombs).

Q=Cu (where c refers to capacitance and u refers to voltage).

The amount of charge is the charge charged.

The amount of charge is "none" positive or negative, because it indicates the amount of charge, and the positive and negative charges are relative [charges are born with no positive or negative (see below, the last paragraph)].

But usually for the sake of convenience, we put a negative sign in front of the amount of charge of a negative charge to indicate that it is a "negative charge". That is, it is directly said that "the charge charge of a charge is q=-1c"; Instead of the trouble of saying "a negative charge with a charge of q = 1c".

PS: Maybe you don't have a good understanding of the amount of electric charge, let's give an example to help you. For example, at that time, instead of "positive" and "negative", "male" and "female" were used to distinguish electric charges, then naturally there would be no positive and negative signs in our mathematical sense.

It can be seen that positive and negative only indicate the nature of the charge, and should not be a necessary element of the amount of charge.

The amount of charge has both positive and negative effects. Since there is no positive or negative, there is only an addition between the two charges, and there is no subtraction. And there is also a subtraction between the two charges, so there are positive and negative charges.

There is no positive or negative charge in this regard, it is a scalar quantity, and the charge is positive and negative, you see -2 coulomb, in fact, it refers to a charged body that is negatively charged, and the amount of charge is 2 coulombs.

The charge is signed.

The amount of charge is similar to the magnitude of the force, which is expressed as an absolute value.

For example, -5e has more charge than 2e.

There are only two types of electric charges in nature, namely positive and negative. The charge carried by the glass rod rubbed by silk is called a positive charge, and the charge carried by the rubber rod rubbed by the fur is called a negative charge. The most basic properties of electric charge are:

The same charge repells each other, and the different charges attract each other. One of the intrinsic properties of matter. The phenomenon that amber can attract small and light objects after friction is the earliest discovery of the charge of objects.

Then it was discovered that lightning strikes, induction, heating, irradiation, etc., can make objects electrified. Electricity is divided into positive and negative, the same sign rejects, different signs attract, positive and negative combined, neutralizes each other, electricity can be transferred, one increases and the other decreases, and the total amount remains the same. The basic unit of matter is the atom, the atom is composed of electrons and nuclei, and the nucleus is composed of protons and neutrons, the electrons are negatively charged, and the protons are positively charged, which are the basic units of positive and negative charges, and the neutrons are not charged.

The so-called uncharged object means that the number of electrons is equal to the number of protons, and the charging of the object is the destruction of this balance. In nature, there is no charge that exists separately from matter. In an isolated system, no matter what changes occur, the total number of electrons and protons remains the same, but the way they are combined or their location changes, so the charge must be conserved.

To illustrate the characteristics of electric charge, some analogies can be made with mass. There are positive and negative charges, so electricity has a difference between repulsion and attraction, and there is only one mass, which always attracts each other, and it is this difference that makes electricity shielded, but gravity cannot shield. Albert Einstein described the relativistic effect of mass as a function of motion; The electric charge of electrons, protons, and all charged bodies does not change due to motion, and the electric charge is a relativistic invariant.

Charge is quantum, any charge is an integer multiple of the electron charge e, the exact value of e (recommended in 1986) is: e = the difference between the proton and the electron charge (absolute value) is less than (10-20)e, and the absolute value of the two is generally considered to be exactly equal. Electrons are very stable, with an estimated lifespan of more than 101 billion years, much longer than the age of the universe has been projected so far.

Normally, matter is made up of atoms, and atoms are composed of the nucleus and peripheral electrons, and the number of protons (positively charged) in the nucleus is equal to the number of electrons outside the nucleus, so the whole atom is externally neutral. Once, due to external action, some electrons gain enough energy to escape from the atom they were in, and the atom becomes a positive ion due to the loss of electrons, and the substance that has gained excess electrons is negatively charged. If this electron is obtained from an atom or cluster of atoms, it becomes a negative ion.

Electric charge, i.e., positively and negatively charged elementary particles, is a physical property of matter. A positively charged particle is called a positive charge (denoted by the symbol "+"A negatively charged particle is called a negative charge (denoted by a symbol of " " is also a property of some elementary particles, such as electrons and protons, that make elementary particles attract or repel each other.

Electric charge is a fundamental conservation property possessed by many subatomic particles, which determines the physical behavior of charged particles in terms of electromagnetism.

The amount of electric charge is called the amount of charge, that is, the amount of electricity carried by a substance, atom, electron, etc. The symbol of the charge is q, and the unit is coulomb (denoted C). We often refer to "charged particles" as electric charges, but the charge itself is not a "particle", but we often think of it as a particle for ease of description.

Therefore, the charge is more charged, and the amount of charge determines the magnitude of the force field (Coulomb force). In addition, according to the directionality of the electric field, electric charges can be divided into positive and negative charges, and electrons are negatively charged (it is stipulated that a glass rod rubbed with silk has a positive charge, and a rubber rod rubbed with fur has a negative charge). According to Coulomb's law, objects with the same charge repel each other, and objects with a different charge attract each other.

The force of repulsion or attraction is directly proportional to the product of the charge.

Because the electric field lines formed by the negative charge are directed towards the negative charge by infinity. The infinity potential is zero and decreases along the electric field line, so that the potential at each point in the electric field excited by the negative charge is less than zero.

Hence the potential energy of a positive charge q <0. Whereas, the negative charge is due to q<0, then the electric potential energy q >0.

The BAI potential energy of the charge is relative, and if a potential is not pre-specified at the zero point (see DAO

point), which says where the charge is in the electricity.

The potential energy of the version is exactly negative and has no meaning.

Usually a position is specified in advance, such as infinity, and the potential energy of all charges at infinity is zero, so that the potential energy of the charge at other positions can be compared, as well as positive and negative.

According to the relationship between the work done by the electric field force and the change of electric potential energy: when the charge is moved in the electric field, the work done by the electric field force on the charge is equal to the difference between the electric potential energy of the charge at the beginning and end positions, that is, if the charge q is moved from position A to position B, the work done by the electric field force on the charge.

w(a->b)=e(a)-e(b)

From this relation, it can be seen that the potential energy of the charge at point A is specified to be zero if it is specified that the electric potential at point b is zero.

e(a)=w(a->b), let b be the point of infinity, if a is any point in the electric field formed by the negative charge -q, when a positive charge +q is moved from a to b, the electric field force of the negative charge -q of the field source to +q is the gravitational force, pointing to the field source, and the displacement direction of the movement is opposite to the electric field force, so if the +q is moved to b, the electric field force does negative work on the positive charge, according to the above relationship, it means that the electric potential energy of the positive charge in the electric field formed by the negative charge is negative.

In the same way, it can also be judged that in the electric field formed by the negative charge, the negative charge moves from a to infinity, and the electric field force does positive work, indicating that the electric potential energy of the negative charge in the electric field formed by the negative charge of the field source is positive.

In the absence of special bai, the general default is that the electric potential at infinity is 0, then the sentence dao is correct, according to the electric potential energy e= q: positive charge and negative.

The electric potential energy of the subordinate charge at infinity is 0, the electric field line around the negative charge of the field source is directed to the negative charge from infinity, the electric potential in the electric field decreases along the direction of the electric field line, the potential energy of the positive charge along the electric field line e= q decreases, and the electric potential energy at any point in the electric field is negative;

The potential energy of the negative charge along the electric field line e= q increases, and the potential energy is positive at any point in the electric field.

An electric field attack is formed by a negative charge.

The electric field lines are all pointed from infinity.

The negative charge du (field source), and the electric potential at infinity is 0, and then the electric potential decreases along the direction of the electric field line, so the electric potential in the electric field formed by the negative charge is less than 0. According to the formula ep=q, so the potential energy possessed by the positive charge is negative, and the potential energy possessed by the negative charge is positive.