Gaokao Exam Compulsory Subjects 3

Question 1

In Chinese high school chemistry (compulsory), the pH of a neutral aqueous solution at 25°C is:

Accepted Answer

7

Answer

At 25°C, pure water has [H⁺] = [OH⁻] = 10⁻⁷ mol/L, giving pH = -log[H⁺] = 7. This is the neutral point.

Question 2

In Chinese high school physics (compulsory mechanics), if an object moves in a circle at constant speed, which of the following is true?

Accepted Answer

Its speed is constant but its velocity changes direction continuously

Answer

Uniform circular motion has constant speed but changing velocity direction. Since velocity changes (direction), there is centripetal acceleration and therefore a centripetal force.

Question 3

According to the Chinese politics curriculum, the National People's Congress (全国人民代表大会) is best described as:

Accepted Answer

The highest organ of state power in China

Answer

China's Constitution designates the National People's Congress (NPC) as the highest organ of state power (最高国家权力机关). It exercises legislative power and elects major state leaders.

Question 4

In Chinese compulsory history, the Long March (长征, 1934-1935) is significant primarily because:

Accepted Answer

It preserved the Red Army and CPC leadership, allowing them to reach northern base areas and continue the revolution

Answer

The Long March (about 12,500 km) saved the CPC and Red Army from KMT encirclement, allowed the Zunyi Conference to consolidate Mao's leadership, and enabled the CPC to establish a base in Yan'an.

Question 5

In Chinese high school biology, the process by which a cell produces energy in the absence of oxygen is called:

Accepted Answer

Anaerobic respiration (fermentation)

Answer

Anaerobic respiration (无氧呼吸) occurs without oxygen. In animals and some microbes, glucose is converted to lactic acid or ethanol/CO₂, yielding a small amount of ATP.

Gaokao Exam Practice Test

Gaokao Exam Practice Test

Gaokao Exam Compulsory Subjects 3