Vietnam: What is the sample set of 1st-semester question papers for 9th-grade Natural Sciences in the 2024-2025 academic year? What are the specific objectives of assessing 9th-grade students?

What is the sample set of 1st-semester question papers for 9th-grade Natural Sciences in the 2024-2025 academic year?

Students may refer to the following sample set of 1st-semester question papers for 9th-grade Natural Sciences in the 2024-2025 academic year:

The sample set of 1st-semester question papers for 9th-grade Natural Sciences in the 2024-2025 academic year

A. MULTIPLE CHOICE: (5.0 points) Choose the correct answer for the following questions:

Question 1. A voltmeter is a device used to measure:

A. Electric potential difference. ** ** B. Electric current.

C. Electric power. D. Electric work.

Question 2. When two objects with the same mass are moving on a horizontal surface, then:

A. The larger the volume, the greater the kinetic energy.

B. The smaller the volume, the greater the kinetic energy.

C. The greater the speed, the greater the kinetic energy.

D. Both objects have the same kinetic energy because they have the same mass.

Question 3. When a parallel beam of light strikes a converging lens along its principal axis, the emergent light beam from the lens:

A. Converges at the focal point of the lens. B. Converges at the focal length of the lens.

C. Becomes a divergent beam. D. Becomes a parallel beam.

Question 4. When do we see an object as red?

A. When the object refracts red light.

B. When there is red light coming from the object to our eyes.

C. When the object scatters all colors except red.

D. When the object absorbs red light.

Question 5. The dispersion of white light is observed in which of the following experiments?

A. Shining a beam of white light onto a flat mirror.

B. Shining a beam of white light through a thin glass plate.

C. Shining a beam of white light through a prism.

D. Shining a beam of white light through a diverging lens.

Question 6. The formula to calculate the resistance of a cylindrical, homogenous conductor with uniform cross-section, length l, diameter d, and resistivity ρ is:

A. R = πd/ 4lρ

B. R = 4d^2^l/πρ

C. R = 4lρ/ πl

D. R = 4ππρ^2^l

Question 7: Consider a circuit consisting of resistor R₁ in series with resistor R₂, connected to a power supply. Let I, I₁, I₂ be the current through the entire circuit, through R₁, and R₂, respectively. Which of the following expressions is correct?

A. I = I₁= I₂

B. I = I₁ + I₂

C. I ≠ I₁ = I₂

D. I₁ ≠ I₂

Question 8. Which effect of electric current depends on the direction of the current?

A. Thermal effect. B. Magnetic effect.

C. Optical effect. D. Physiological effect.

Question 9. Alternating current does not have which of the following effects?

A. Optical effect B. Magnetic effect.

C. Physiological effect. D. Chemical effect.

Question 10. Which of the following is not an advantage of wind power?

A. Does not cause environmental pollution. B. Does not consume fuel.

C. Compact equipment. D. Very high power output.

Question 11. Cooking pots and pans used in households are typically made from aluminum. Which physical property of aluminum is utilized in this application?

A. Electrical conductivity. B. Ductility.

C. Metallic luster. D. Thermal conductivity.

Question 12. Which of the following metals does not react with oxygen at high temperatures?

A. Al. B. Fe.

C. Cu. D. Ag.

Question 13. Which metal does not react with hydrochloric acid solution?

A. Cu B. Mg

C. Zn D. Al

Question 14. Which pair of nonmetals are all in the gaseous state?

A. S, Si, H₂.

B. N2, O2, H2.

C. C, Cl₂, O₂.

D. N₂, S, C.

Question 15. Which of the following is not a fossil fuel?

A. Coal. B. Oil.

C. Natural gas. D. Ethanol.

Question 16. The formula that shows the arrangement and bonding of atoms in a molecule is which of the following types of formula:

A. Molecular formula. B. Structural formula.

C. General formula. D. Simplest formula.

II. SCRIPT: 5 points

Question 18. (1.0 point)

Line x is the principal axis of the lens. S is a real object, S' is the image of S through the lens. In each case:

a) Determine whether the image S' is real or virtual, and whether the lens is converging or diverging.

b) Describe the procedure to identify the optical center O and the focal points F of the lens.

Question 19. (1.5 points)

A circuit consists of a light bulb marked 6V - 4.5W connected in series with a variable resistor and is subjected to a constant potential difference of 9V. Neglect the resistance of the ammeter and connecting wires.

a) Close switch K, and the bulb lights normally. Find the ammeter reading.

b) Calculate the resistance and power consumption of the resistor at that time.

c) Calculate the work done by the current on the variable resistor and the entire circuit in 10 minutes.

Question 20. (1.0 point)Immerse an iron bar weighing 50 grams into 400 ml of CuSO4 solution. After some time, the mass of the iron bar increases by 2 grams. (Assume all copper produced adheres to the iron bar)

a) Determine the amount of Cu produced.

b) Calculate the molarity of the resulting iron(II) sulfate solution. Assume the volume of the solution does not change.

Question 21. What is a fossil fuel? Name three types of fossil fuels. Why is it necessary to limit the use of fossil fuels?

*Note: The information about the top sample set of Semester 1 exams in Natural Sciences for 9th-grade, 2024-2025 academic year, is for reference only./.

What is the sample set of 1st-semester question papers for 9th-grade Natural Sciences in the 2024-2025 academic year? What are the specific objectives of assessing 9th-grade students in Vietnam? (Image from Internet)

What are the specific objectives of assessing 9th-grade students in Vietnam?

According to Article 3 of Circular 22/2021/TT-BGDDT, the specific objectives of assessing 9th-grade students in Vietnam are as follows:

Conduct assessment in order to identify level of accomplishment of training and learning tasks of students as per requirements under formal education program; provide accurate and timely information to allow students to adjust training and learning activities while allowing education officials and teachers to adjust teaching activities.

What is the form of certification of completion of the lower secondary program for 9th-grade students in Vietnam?

According to Article 34 of the Education Law 2019, regulations on certification for completion of primary education and issuance of lower secondary diploma and upper secondary diplomas are as follows:

Certification for completion of primary education and issuance of lower secondary diploma and upper secondary diploma

1. Students who complete the primary education program and meet the requirements set by the Minister of Education and Training will be certified in their official academic records by a primary school principal that they have completed primary education.

2. Students who complete the lower secondary education program and meet the requirements set by the Minister of Education and Training will be issued with diplomas of lower secondary education by the head of an educational specialized agency under the management of a provincial People’s Committee.

3. Students who complete the upper secondary education program and meet the requirements set by the Minister of Education and Training will be eligible to take the examination. Those who pass the examination are issued with diplomas of upper secondary education by the head of an educational specialized agency under the management of a provincial People’s Committee.

Students who complete upper secondary education and meet the requirements set by the Minister of Education and Training will be eligible to take the examination. Those who do not take the examination or fail the examination are issued with certificates by the school principal that they have completed general education.

Certificate for completion of general education is used to register for the examination for the upper secondary diploma per learners' wish or per the requirements to continue studying in vocational education and is used in specific cases as prescribed by law.

4. Students with lower secondary diplomas and studying a vocational secondary program in institutions of vocational education, after completing the program, are eligible to take the examination certifying the upper secondary education knowledge as prescribed by the Minister of Education and Training. Those who pass the examination are issued with certificates by the head of an educational institution teaching upper secondary cultural knowledge that they have achieved sufficient upper secondary education knowledge.

Certificate for achieving sufficient upper secondary education knowledge is used to continue studying a higher qualification of vocational education and is used in specific cases as prescribed by law.

Students who complete the lower secondary education program and meet the requirements set by the Minister of Education and Training will be issued diplomas of lower secondary education by the head of an educational specialized agency under the management of a provincial People’s Committee.

Thus, the issuance of a lower secondary diploma is a form of recognition when 9th-grade students confirm their completion of the program.