Equivalent substitution method i want!
The equivalent substitution method is not only a method for scientists to study problems, but also a common method for students to study physics. The new curriculum standard also requires students to master some physical methods to explore problems
RELATED INFORMATIONS
- 1. What is equivalent substitution method?
- 2. Discussion on energy transformation or transfer in junior high school physics State how the following energy is transformed or transferred 1. Rocket points and then soars 2. The flying meteor has a luminous tail People feel warm when they are in the sun 4. Use solar water heater to boil water 5. When the tube filled with water blocked by the plug is heated, the plug is flushed open Thank you~~~
- 3. The migration and transformation of heavy metals in soil are mainly physical and chemical processes This is a judgment question, right or wrong! Some textbooks also say that there are mainly physics,
- 4. The difference between energy conversion and transfer
- 5. Junior high school physics: energy conversion, about internal energy Please give examples of the life in which internal energy is converted into other forms of energy and other forms of energy are converted into internal energy In addition, when baking bread in an electric oven, is it right that electric energy is converted into internal energy? Generally speaking, most of the internal energy is converted into other energy by gas or liquid? In addition, can the energy of solid be converted into internal energy by other energy? Isn't its molecular structure very stable?
- 6. If the two bulbs of "220 V & nbsp; 25W" and "220 V & nbsp; 40W" are connected in parallel to the 220 V circuit first, and then connected in series to the same circuit, then () A. The total power consumption of two lamps connected in parallel is greater than that in series D. the total power consumption of two lamps connected in series is greater than that in parallel
- 7. 8. The Chang'e-1 lunar exploration satellite developed by our country runs along the elliptical orbit with the near moon point and the far moon point. When the satellite moves from the near moon point to the far moon point, the satellite () increases () decreases (both filled with "kinetic energy" or "gravitational potential energy")
- 8. The control variable method is used in those experiments in junior high school physics learning
- 9. What are the control variables of physics experiment in junior high school Let's give examples instead of big discussions. Let's name each one
- 10. On the experiment of "control variable method"
- 11. What is the physical meaning of D in D-value method?
- 12. What is the relationship between transformation method and amplification method in physics experiment? Please give an example to explain it in detail
- 13. Male wire is a unit of length measured in one degree. How many millimeters is a male wire equal to?
- 14. How many meters is a yard? A French unit of length, not a British or American unit
- 15. Conversion of physical unit rate in grade two of junior high school Let's not talk about other things. Now I've just studied physics. I've just learned kilometer meter, decimeter, centimeter, millimeter, micrometer and nanometer. The progress rate in these books is only from meter to millimeter, micrometer and nanometer. But I'm dizzy. If decimeter is replaced by micrometer or nanometer, how much progress rate is I stupid
- 16. 180km/h=()km/min=()m/s 8m/s=()m/min=()km/s
- 17. A cube iron block with side length of 1dm, immersed in water When the iron block is completely immersed in water and its upper surface is 0.5 DM away from the liquid level, the upper and lower surfaces of the iron block are subjected to pressure difference and buoyancy
- 18. Conversion unit, 4.6mm=___ μm=___ nm
- 19. Put more than half a cup of rice in the glass, insert a chopstick in the middle, press the rice tightly to make the chopsticks stand upright, and then continue to add a little water into the glass. After a while, you can lift the glass with rice and talk about the truth
- 20. How does a ruler inserted obliquely into the water change from the surface of the water? When the ruler is inserted obliquely into the water, the scale mark () It is possible for a to become dense, B to become sparse and C to remain unchanged Please answer in detail