Vietnam: What are the 15-minute question papers for 10th-grade Physics? Can 10th-grade students cheat while taking the 15-minute question papers for 10th-grade Physics?

What are the 15-minute question papers for 10th-grade Physics in Vietnam?

The 15-minute question paper for 10th-grade Physics is a type of short test, often used to assess the knowledge and skills of students within a short period of time (approximately 15 minutes).

Students can refer to the following 15-minute question papers for 10th-grade Physics:

Question 1: What is uniform straight-line motion?

Question 2: What coordinates are used to determine the position of the maritime patrol vessel 8001 between the ocean?

Question 3: A car departs from Giap Bat bus station, accelerating uniformly in a straight line, and reaches a speed of 5 m/s after traveling 25m. Calculate the car's acceleration and the speed it reaches after traveling an additional 25m?

Question 4: Around 2:30 PM on September 6, 2016, at National Highway 20 passing through Dam Ri commune-level town (Da Huoai, Lam Dong), a passenger bus carrying 30 people showed signs of brake failure. Upon discovering the incident, driver Phan Van Bac skillfully maneuvered his truck and signaled for the bus to make contact with the rear of his vehicle, guiding it down a 500-meter slope on Bao Loc Pass until both vehicles came to a safe stop at the bottom of the slope. Assuming the two vehicles were traveling at 54km/h when they made contact at the top of the slope, consider them to be in uniform deceleration until they stopped.

a) Establish the motion equation of the two vehicles when they adhered to each other and moved down the slope.

b) Write the velocity formula of the two vehicles when they adhered to each other and moved down the slope.

Solution:

Question 1: What is uniform straight-line motion?

Uniform straight-line motion is a type of motion where the trajectory is a straight line and the velocity remains constant over time. That is, the object moves along a straight line and covers equal distances in equal intervals of time.

Question 2: What coordinates are used to determine the position of the maritime patrol vessel 8001 between the ocean?

To determine the position of an object on Earth, especially at sea, longitude and latitude coordinate systems are typically used.

Longitude is the angle between the meridian that passes through that point and the prime meridian (Greenwich meridian).

Latitude is the angle between the equator and the line perpendicular to the Earth's surface passing through that point.

Additionally, other coordinate systems such as UTM, Gauss-Kruger are used for more detailed positioning.

Question 3:

Summary:
v₀ = 0 m/s (the car starts from rest)
s₁ = 25 m
v₁ = 5 m/s

Find: a, v₂ (speed after traveling an additional 25m)

Solution:
Acceleration a: Apply the formula relating velocity, acceleration, and distance: v₁² - v₀² = 2as₁ => a = (v₁² - v₀²) / (2s₁) = (5² - 0²) / (2*25) = 0.5 m/s²

Velocity v₂ after an additional 25m: Total distance: s₂ = s₁ + 25 = 50 m Apply a similar formula: v₂² - v₀² = 2as₂ => v₂ = √(2as₂) = √(20.5*50) = 7.07 m/s

Answer:
Acceleration a = 0.5 m/s²
Velocity v₂ = 7.07 m/s

Question 4:

Summary:
v₀ = 54 km/h = 15 m/s (initial speed of the two vehicles when they adhered to each other)
s = 500 m (distance traveled by the two vehicles until they stopped)
v = 0 m/s (final speed when the two vehicles stopped)

Solution:
a) Motion equation of the two vehicles: Choose the origin at the top of the slope, positive direction as the direction of the vehicles' motion, and time zero as when the two vehicles start decelerating. Motion equation: x = x₀ + v₀t + 0.5at² With x₀ = 0 (since the origin is at the top of the slope), v₀ = 15 m/s. To find a, use the formula v² - v₀² = 2as => a = -v₀² / (2s) = -15² / (2*500) = -0.225 m/s² So the motion equation is: x = 15t - 0.1125t²

b) Velocity formula: v = v₀ + at = 15 - 0.225t

Note:

The negative sign of acceleration indicates the vehicles are decelerating uniformly.

The motion equation and velocity formula above are only valid for the scenario where the two vehicles adhered to each other and decelerated uniformly until they stopped completely.

Note: Information about the 15-minute question papers for 10th-grade Physics is for reference only./.

What are the 15-minute question papers for 10th-grade Physics? Can 10th-grade students cheat while taking the 15-minute question papers for 10th-grade Physics? (Image from the Internet)

Can 10th-grade students cheat while taking the 15-minute question papers for 10th-grade Physics?

Under Article 37 of the Regulations issued together with Circular 32/2020/TT-BGDDT regulating the prohibited acts for 10th-grade students in Vietnam:

Prohibited acts for students

1. Disrespect the dignity, honor or bodily integrity of teachers, officials and staff of their schools, other people and other students.

2. Act dishonestly in learning, examinations or admission process.

3. Buy, sell or use alcohol, tobacco, drugs, other stimulants, firecrackers or explosives.

4. Use mobile phones and other devices in class for purposes other than learning and without the teacher's permission.

5. Fight or disrupt public or school order or security.

6. Use or exchange cultural products that incite violence or contain indecent materials; use toys or play games that impede their own healthy development.

7. Students shall not commit other prohibited acts provided for by regulations of law.

Thus, under the above regulations, 10th-grade students are not allowed to cheat while taking the 15-minute question papers for 10th-grade Physics.

What are the disciplinary measures against 10th-grade students in Vietnam?

Under Article 38 of the Regulations issued together with Circular 32/2020/TT-BGDDT regulating disciplinary measures against 10th-grade students in Vietnam:

-Remind the student, directly support them in correcting their mistake.

- Reprimand the student, inform the student’s parent(s) to have the parent(s) cooperate in supporting the student in correcting their mistake.

- Suspend the student’s study at school for a definite period and take other correcting measures according to regulations from the Ministry of Education and Training.