![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
All the formulas in the first chapter of physics elective course 3-1
6、 Coulomb's Law: F = kq1q2 / R2 (in vacuum) {F: force between point charges (n), K: electrostatic constant, k = 9.0 × 109n? M2 / C2, Q1, Q2: two point charges
I want to discuss the classification of the formulas in Chapter 2 electricity, that is, what formula can only be used for pure resistance, what formula can be used for any kind of circuit,
10、 Coulomb's Law: F = kq1q2 / R2 (in vacuum) {F: force between point charges (n), K: electrostatic constant, k = 9.0 × 109n & # 8226; m2 / C2, Q1, Q2: two
The formula of 3-1 in senior high school physics elective course
Coulomb's law of electric field: F = kq1q2 / r2 definition of electric field strength: e = f / Q electric field strength of electric field formed by neutral point charge in vacuum: e = KQ / r2 relationship between electric field strength and potential difference in uniform electric field: e = u / D calculation formula of electric field force work when moving charge between two points in electric field: w = Qu constant current part ohmic fixed
What are the formulas in the first section of the first chapter of high school physics elective course 3-3?
Finding the formula and derivation of section 1 in Chapter 3-3
There is only one experimental formula, d = V / s, where D is the diameter of the molecule, V is the volume of the molecular substance measured, and S is the area of the molecular substance splashed on the water surface
In addition, the value of Avogadro constant Na = 6.02 * 10 ^ 23 mol ^ (- 1)
High school physics elective 3-4 all the formula finishing····
Deformation formula, and 3-4 can be used to do the formula···
Physics elective formula of Senior 2
6、 Coulomb's Law: F = kq1q2 / R2 (in vacuum) {F: force between point charges (n), K: electrostatic constant, k = 9.0 × 109n? M2 / C2, Q1, Q2: two point charges
Physics elective 3-3 formula
In the first law of thermodynamics, e = w + Q PV / T = constant P = f / s P1 / P2 = V1 / V2 (isothermal change) PV = NRT (r = 8.31) q = CMT q = LM (L is constant)
The key formula of physics elective 3-2
People's education press high school physics (elective 3-2) formula 1. Φ = bssin θ, Φ is the magnetic flux (WB) B is the magnetic induction intensity (T) s is the area (M & # 178;) sin θ is the sine value of the angle between the magnetic field direction and the conductor surface; 2. E = ne is the induced electromotive force (V) n is the number of turns (turns) Φ is the change of magnetic flux (WB) Δ t is
Summary of 3-1 knowledge points and formulas of physics elective course in senior two
Coulomb's Law: F = kq1q2 / R2 (in vacuum) {F: force between point charges (n), K: electrostatic constant, k = 9.0 × 109n & # 8226; m2 / C2, Q1, Q2
New curriculum standard physics elective 3-1 knowledge points and formula arrangement
Chapter 1 electrostatic field formula set
1. The smallest amount of charge is called "elementary charge" E = 1.6 * 10-19c, and the amount of charge carried by an electron is 1E
2. Coulomb's law f = kqq / r2 K: electrostatic constant Q: source charge Q: trial charge
3. Electric field intensity (vector)
The direction of E = f / Q = KQ / r2 e is the same as that of the electrostatic force on the positive charge at this point
4. Electric field line
1) The tangent direction of each point on the electric field line indicates the direction of the electric field intensity at that point
2) The electric field lines do not intersect
3) The density of electric field lines or the space between equipotential surfaces is small and mostly indicates the weak and strong of electric field strength
4) The electric field lines of uniform electric field are parallel lines with equal intervals
5) The electric field line points to the direction of potential reduction, that is, from the equipotential surface with high potential to the equipotential surface with low potential
5. The work done by the electrostatic force is equal to the reduction of electric potential energy
WAB = EPA - EPB = q e DAB = q UAB DAB: the distance between two points of AB along the direction of electric field
The potential energy of a charge at a point is equal to the work done by an electrostatic force moving it from that point to the zero potential energy position
6. Potential (scalar)
φ = the ratio of the potential energy of EP / Q charge at a certain point in the electric field to its charge quantity is called the potential at this point
There is no necessary relation between the electric potential and the electric field strength
7. Equipotential surface
1) The equipotential surface must be perpendicular to the electric field line
2) When the charge moves on the same equipotential surface, the electrostatic force does not work
3) The equipotential surfaces do not intersect
4) For the same equipotential surface, the field strength is not necessarily the same
8. Voltage (potential difference) UAB = φ a - φ B
9. The surface of the equipotential body is the same equipotential surface, all internal electric field strength is 0 everywhere, and all internal electric charges are zero
Expansion: there are two different equipotential surfaces on the inner and outer surfaces, the field strength in the ring is 0, and there is a field strength in the middle
10. The relationship between electric potential difference and electric field strength
UAB = e d ⊥ e: uniform electric field D ⊥ AB distance between two points along the direction of field strength
That is to say, the potential difference between two points in a uniform electric field is equal to the product of the electric field intensity and the distance between the two points along the electric field direction
E = UAB / D ⊥ that is, the electric field intensity is equal to the reduced electric potential per unit distance along the electric field direction
11. Capacitance
C = q / u Q: absolute value of charged quantity of single plate
The capacitance is numerically equal to the amount of charge that the capacitor needs to carry when the potential difference between the two plates is (per) 1V
C = ε R S / (4 π K d) ε R: relative dielectric constant of dielectric, K: electrostatic constant
12、U = 4πk d Q/（εr S） E = 4πk Q/（εr S）
13. Acceleration of charged particles
Kinetic energy theorem MV2 / 2 = q UAB
14. Deflection of charged particles
Acceleration a = f / M = QE / M = Qu / (MD) offset distance y = at2 / 2
Movement time t = L / v0
Deflection angle Tan θ = V ⊥ / V0 V ⊥ = a t
RELATED INFORMATIONS
- 1. What are the knowledge points and formulas of physics elective 3-1 in the new curriculum standard?
- 2. May I ask the thermophysical formula q = u square / R T q = I square RT? Can these two formulas be used in series parallel circuits? How to use them
- 3. W = FS w = GH = MGH w = FS unit of physical quantity
- 4. All the formulas (including the deformation formula) of physical electricity in grade two of junior high school Find all the formulas of electricity in the second grade of junior high school!
- 5. Input the radius and write the program to calculate the area and perimeter of the circle with VB In order to ensure the correct operation of the program, the input radius is checked legally. The IsNumeric function is called to check the data. The msgbox is used to first send the error message, and the result is reserved for two decimal places. The area and perimeter are required to be completed by two commands. The radius is controlled by a label
- 6. When deducing the area formula of a circle, the circle is divided into several equal parts to form an approximate rectangle. The length of the rectangle is 6.42cm more than the width, and the area is? In the derivation of the area formula of a circle, the circle is divided into several equal parts to form an approximate rectangle. The length of the rectangle is 6.42cm more than the width, and the area is ()
- 7. Finding the knowledge points of the first chapter of mathematics triangle
- 8. A few math problems of grade one in junior high school· The value of (x + y) ^ 3 (2x + 2Y) ^ 3 (3x + 3Y) ^ 3? 10 ^ α = 20, 10 ^ β = 5 ^ - 1, then the value of 9 ^ α / 3 ^ 2 β is?
- 9. Circumference formula and area formula of semicircle fast
- 10. The canteen bought some flour. On the first day, they ate half of the whole flour, which was less than 28 kg. On the second day, they ate the remaining half, which was less than 8 kg. Finally, they had 122 kg. How many kg of flour are there?
- 11. The concept and formula of free falling motion?
- 12. How to deduce the centripetal acceleration formula?
- 13. Kinetic energy theorem 1. The mass m of the vehicle starts from standstill, and reaches the maximum speed VM after moving x along the horizontal road. Assuming that the traction power is constant and the resistance is k times of the vehicle weight, the traction power of the vehicle and the time required for the vehicle to move from standstill to uniform speed can be calculated 2. The object slides from the top a of the high H inclined plane to the top B of the horizontal plane. The horizontal distance of AB is s, and the dynamic friction coefficient between the object and the contact surface is calculated
- 14. It is known that the angle OC is the bisector of the angle AOB and the angle od is the bisector of the angle AOC A. Angle cod = one third angle AOB B. Angle AOD = quarter angle AOB C. Angle AOD = half angle BOC D. Angle cod = one third of angle DOB
- 15. As shown in the figure, draw the bisector OC of angle AOB with a protractor, take any point P in OC, and compare the distance from point P to OA and ob
- 16. An arithmetic problem, Divide a circle into several small sectors, and then form an approximate rectangle. The length of this rectangle is 9.42 decimeters, and the perimeter is 24.54 decimeters. The perimeter of this circle is ()? The area is?
- 17. If we know the line L1: MX + NY + 4 = 0, L2: (m-1) x + y + n = 0, L1 goes through (- 1, - 1), ask whether L1 ‖ L2 holds? If it is true, find the value of M, N, if it is not true, explain the reason. (Science) vertex B (3, 4) of △ ABC, the linear equation of high CE on AB side is 2x + 3y-16 = 0, the linear equation of middle line ad on BC side is 2x-3y + 1 = 0, find the length of AC
- 18. A pile of loess is shown in the figure below. The area of a is 25 square meters, the area of B is 15 square meters, and H is 4 meters. Now we need to push the soil at a to B, which is the same height as a and B, and the area of a has dropped by several meters? (hint: solve the equation)
- 19. A train from Wuhan to Hefei, the original speed is 120 km / h, to 4 hours to arrive. After the train extraction, the speed reached 160 km / h, now from Wuhan to Hefei by train need a few hours?
- 20. A train leaves Xuzhou at 9:30 in the morning and arrives in Beijing at 4:00 in the afternoon. How long is the railway between Xuzhou and Beijing? The speed of the train is 120 km / h Come on!