Tổng hợp kiến thức vật lý 6 đầy đủ nhất (+ lý thuyết, công thức & bài tập)

The following is a combination of 6 -detail and most complete physical knowledge. This article not only systematizes the entire theory, the formula to remember in two chapters and heat, but they also practice answering related review questions. Thereby, helping students master the general knowledge to understand the details of the lesson, and at the same time review well for the exams at school.

Summary of physical knowledge 6 Semester 1 – Mechanics

Learning physics 6 chapters, we understand some concepts like force? What is gravity? What is mass? There are simple mechanical machines, what are the help of people … Here are the theory & formula to remember.

Mechanical chapter theory

Summary of knowledge to remember mechanical chapter

Stt	Knowledge to remember	Content
1	Length measuring tools	Some tools used to measure lengths such as straight ruler, ruler, ruler …
2	Measurement limit of ruler	GHĐ is the largest length recorded on the ruler
3	The smallest division of the ruler	DCN How to calculate the Snart of the ruler: ĐCN
4	Length measurement unit	Is the quantity used to measure the distance between two points The unit of legal length is meter (symbol: m) In addition, millimeters (mm), xentimethia (cm), topic (dm), kilometers (km) …
5	How to measure the length	Step 1: Estimate the length of measurement Step 2: Choose the right measure Step 3: Measure and read the correct results
6	Volume measurement tools	Ca measuring and dividing vase are two tools using the volume of liquid
7	Measurement limit of degrees	Is the maximum value recorded in the highest line on the bottle.
8	The smallest division of the degrees	Is the volume between two consecutive divisions on the bottle
9	Volume measurement unit	In the international measurement system (Si), the standard unit of volume is cubic meter (m³)
10	What is mass	The mass is the measurement of the substance of an object
11	Mass measuring tools	The common mass measuring device is weighing. Some types of weight such as: weighing, weighing Robecval, medical scales, clock scales, electronic scales …
12	Mass measurement unit	The unit of the official weight of our country is kilogam, symbol kg
13	What is force	The force is any effect that causes an object to change, or affect the movement, its direction or its geometric structure. There are forces such as: thrust, traction, suction force, friction force, …
14	Force measurement device	Using the force we can measure the magnitude of the force
15	Force unit	The force measuring unit is niuton
16	Value	N
17	Phuong and the afternoon of force	Phuong can be vertical, horizontal, skewer The afternoon can be from top to bottom or bottom to top
18	Two balanced forces	How to identify two balanced forces Two forces must work together on an object Two forces in the same direction but in the opposite direction Two forces have equal magnitude
19	What is gravity	Gravity is the attraction of the earth
21	Phuong and the afternoon of gravity	Gravity has a vertical direction. Afternoon from the top down (towards the Earth)
21	What is weight	The weight of the object is the magnitude of the gravity acting on the object The weight symbol is P
22	Spring	Spring manual used to measure the magnitude of the force Spring structure includes: Spring, spring, indicator, two ends of hook, measurement scale
23	How to identify elasticity	When the object is impacted by a force, it is deformed, but when the animal is stopped, the animal returns to the original shape => the object is elasticity
24	What is the density	The mass of one cubic meter is a substance called the density of that substance
25	The unit measures the specific gravity	The unit of density is kilograms on cubic meters (kg/m³)
26	How to determine the density of a substance	The density of a substance is determined by the mass of a volume unit (1m3) of that substance: d = m/v
27	What is specific weight	The weight of a cubic meter of a substance is called the specific weight of that substance
28	Private weight measurement unit	N/m³
29	Simple mechanical machines	Mechanical machines are simply tools that make it easier to work 3 types of simple mechanical machines: Pulley Lever Inclined plane
30	Effects of pulley types	The fixed pulley has the effect of changing the direction of the traction compared to the direct pull The dynamic pulley works to make the force pull up smaller than the weight of the object.

Summary of 6 -chapter physical formula to remember

The children remember the 6 -chapter physical formulas below to be able to apply it to solve the exercises effectively:

The formula to remember	Note
Formula for calculating the deformation of the spring: Δl = l – worry	ΔL: Spring deformation Lo: Initial length of spring (natural length) L: Spring length after deformed
The formula for the weight between weight and mass: P = 10.m	P: The weight of the object M: mass of the object
Formula for calculating the specific gravity of the object: D = MV	D: density (kg/m³) M: mass (kg) V: volume (m³)
The formula for calculating the specific weight of the object d = PV	D: Specific weight (n/m³) N: Newton P: is weight (n) V is the volume (m³)
The formula for specific gravity according to the specific weight: d = 10 x d	D: Specific weight, unit of specific weight is N/m3 D: Specific volume

Some units need to remember

The measurement unit is a very important knowledge to remember, in many types of exercises we need to convert the right measurement unit to be able to solve the lesson correctly. Below is a table of conversion units and how to change units of length and volume …

Cubit

• Unit of measurement of length and reading

• How to convert units of length measurement

Each unit is 10 times more than the next unit, each unit after 1/10 units in the first time

Mass measurement unit

• Unit of mass measurement and reading

KG: Kilo

Hg: Héc-ton

DAG: De-ca-gam

G: gram

Other units: Tan, Ta, Yen

• How to convert mass measurement units

Two units measure the standing volume more immediately or 10 times less than each other

The large unit stood in front of 10 times the adjacent small unit (1 quintal = 10 oats)

The small unit behind 1/10 of the adjacent unit (e.g. 1 Yen = 1/10 quintal)

Time unit

Time unit	Symbol (if any)
1 minute = 60 seconds	1p = 60s
1 hour = 60 minutes	1h = 60p
1 day = 24 hours	1 day = 24h

See also: Material material diagram 6 chapters are easy to understand and easy to remember

Summary of physical knowledge 6 Semester 2 – Heat

Through this chapter, we will answer some questions such as expansion substances for heat? What is melting, frozen, evaporation and condensation? …

Heating theory

Stt	Knowledge to remember	Content
1	Conclusions about solid heat expansion	When the temperature increases solids, when the temperature decreases solids Different solids hatch because of different heat
2	Conclusions about the heat of the liquid	The liquid expands when heating, shrinking when cold Different liquids hatch because of different heat
4	Conclusions about the heat of the gas	The gas blooms when heating, shrinking when it is cold Different gases hatch because of the same heat
5	Application of heat expansion of solid, liquid, gas	Application of solid heat Dual tape manufacturing In the field of manufacturing machinery Application of objects such as knives, sickle … Application for heat expansion Producing bottled water: Only poured with water bottles Thermometer measuring temperature .. Application for heat expansion of gas Balloon Reduce the table tennis Bicycle pump does not pump too tight
6	Uses and operating principles of thermometer	Thermometer used to measure temperature The operating principle of the thermometer is: It works based on the phenomenon of expansion because of the heat of the substances
7	What factors depend on the evaporation speed	The evaporation speed depends on 4 factors: temperature, wind, airy area, and the properties of each type of liquid
8	The concept of melting, frozen, evaporation, condensation and boiling	Melting and frozen The transition from solid to liquid form of a substance is called melting. In contrast, the change from liquid to solid body is called freezing. Evaporation The transition from liquid to vapor is called evaporation. The transition from vapor to liquid is called condensation. Boiling The boiling is the process of changing from liquid to gas that occurs both inside and on the liquid surface.

The 6th grade physical formulas to remember

Formula for C and F -degree f

1 ° C = 1.8 ° F

Formula to change degree F to degree C

° C = (° F – 32 ° F)/1.8 ° F

The formula changes from degree C to degree f

° F = ° C x 1.8 ° F + 32 ° F

Some units need to remember

Volume measurement unit

Table of conversion unit of volume to remember

NOTE Each unit measures the volume standing close to each other, the unit is larger than 1,000 small units

The formula for exchanging liters (l) to other volume measurement units

• 1 L = 1000 ml

• 1 L = 1000 cm3

• 1 cm3 = 0.001 l

• 1 l = 1 dm3

• 1 L = 0.001 m3

• 1 m3 = 1000 l

Building a solid mathematical platform for children from an early age with a multimedia, extremely cheap cost less than 2k/day with Shining Home – Gia đình Anh Ngữ Math.

Some of the physical knowledge review questions 6

Question 1: Fill in the missing words in the following sentences

1. The unit of measurement length is …………….

2. The volume measurement unit is ………… ..

3. The force measurement unit is ……………….

4. The mass measurement unit is ………

5. The unit measuring the density is ……

Question 2: Proceed to change the following units

1.05 km = …… m

105 dm = …… .m

0.25 m3 = …….. dm3

1.05 quintal = ………. kg

290 g = ……… .kg

Question 3: The push and pull effect of one object to another is called Gi?

Question 4: Use words in the following three boxes to write 5 different sentences

Suction force – Push – Trisel

Football fruit – Table tennis – plow – nails – iron piece

Buffalo

Football goalkeeper

Nail

Magnet bar

Table tennis racket

Question 5: If there are only two forces acting on the same standing object, what two forces are called two forces?

Question 6: For example, proving the existence of gravity?

Question 7: An object weighs 250 N. asks how much is it?

Question 8: Fill in the appropriate word in the following box

A, the density of copper is 8900 …….

b, The weight of a dog is 70 …….

c, the specific gravity of cooking oil is 8000 … ..

d, The volume of water in a water tank is 3 ……

Question 9: Please name 3 simple mechanical machines that I have learned

Question 10: What is the use and operating principle of the thermometer? Which thermometer do people use to measure human body temperature?

Question 11: Why do we pour hot water into a thick glass cup, the cup is more fragile than when pouring hot water into a thin glass cup?

Answer

Question 3: force

Question 4:

The buffalo acts on the plow

Football goalkeeper has the effect of pushing on football

The nailed pliers have the effect of pulling on the nail

The magnet bar acts on the iron piece

The table tennis racket works to push on the table tennis

Question 5: Two balanced forces

Question 6:

Drop a chalk, the chalk fell to the ground because the Earth had the force to attract the chalk.

People who live on earth do not fall into the universe thanks to the attraction of the earth

Question 7: We have p = 10.m => m = p/10 = 250/10 = 25 kg

Question 8:

A, Kilogam per cubic meter

b, niuton

d, niuton on cubic meters

e, cubic meter

Question 9: Leverage, inclined plane, pulley

Question 10:

Thermometer used to measure temperature

The thermometer works based on the properties of the liquid's heat

Use medical thermometer to measure human body temperature

Question 11:

When pouring water into a thick glass, the inner glass is exposed to the water will heat up first and expand. While the outside glass layer has not yet heated up and has not expanded. As a result, the external glass layer is under the effect of the inside out and the cup broke. With a thin cup, the inner and outer glass layer is heated and expanded and the cup does not break.

Above is a collection of physical knowledge 6 of two chapters and heat. Shining Home – Gia đình Anh Ngữ hopes that through here, the students have the opportunity to review the knowledge they have learned so that they can recall and understand the definitions and physical formulas of grade 6. I wish you all well in 6th grade Physics.