Dao động cơ học là

Đâu là các khu vực có nhiều năng lượng?

Rewrite the sentences without changing their meanings. Write no more than FOUR words in each blank.

The new treatment can delay the onset of the disease.

The onset of the disease __________ by the new treatment.

Xác suất tìm thấy electron trên toàn bộ vùng không gian xung quanh hạt nhân là bao nhiêu phần trăm?

Cấu hình electron của nguyên tử nguyên tố X là 1s²2s²2p⁶. Số hiệu nguyên tử của X là

Trong các câu sau, có bao nhiêu câu là mệnh đề?

a) Tổng các góc trong một tam giác bằng \(180{{}^{\circ }}.\)

b) \(x\) là một số nguyên.

c) Bạn có chăm học không?

d) Tổng hai cạnh của một tam giác lớn hơn cạnh thứ ba.

Read the following leaflet and mark the letter A, B, C, or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 7 to 12. (1,5 points)

HEALTHY EATING MADE EASY!

Eating well is essential for a balanced life. Here are some tips to get you started:

• Include plenty of fruits and vegetables in your diet. You can find (7) _____ options at your local market.
• When cooking, try to (8) _____  unhealthy fats and sugar. Use fresh ingredients instead!
• Remember to drink enough water, (9) _______ it is crucial for your health and helps keep you energized.
• If you feel hungry between meals, reach for (10) _____ snacks like nuts or yogurt instead of chips.
• It’s important to have moderate food (11) _____. Overeating can lead to health (12) ______.
• Lastly, enjoy your meals with family or friends to make eating a joyful experience.

Trong điều kiện lý tưởng, giống lúa A cho năng suất tối đa là 10,5 tấn/ha, trong khi đó giống lúa B chỉ cho năng suất tối đa là 6 tấn/ha. Điều này cho thấy vai trò của nhân tố nào đối với năng suất cây trồng?

Theo em, ngân sách nhà nước là toàn bộ các khoản thu, chi của Nhà nước được dự toán và thực hiện trong một khoảng thời gian nhất định do Cơ quan nhà nước có thẩm quyền quyết định để bảo đảm thực hiện:

Choose A, B, C or D: Waste paper can be used again after being ______.

Đặc điểm nổi bật trong xã hội hiện đại là?

Tình trạng nào sau đây không phản ánh đúng hậu quả của của lạm phát đối với đời sống xã hội?

Nếu không được điều trị kịp thời, bệnh phân trắng lợn con sẽ khiến lợn chết sau khi mắc bệnh mấy ngày?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 20 to 27.

Traditional Media

Before the invention of newspapers, the main source of news was word of mouth. Any writings and drawings were done by hand. Although printing presses had existed in eastern Asia, it was Gutenberg’s invention in Europe in 1453 that made printing faster and books more accessible. It reduced the cost and size of printed books and made them the first form of mass media affordable to less wealthy people. Gutenberg’s invention also quickened the spread of discoveries and information, and promoted literacy in Europe.

The printing press led to the rise of printed newspapers that appeared regularly. The first newspapers developed from around 1612 and in a short period of time, they became very popular in Europe and the European colonies. In the 19th century, they also appeared in Asia.

Newspapers and magazines are still very popular today. Although most of them have online versions, many people continue to read print media, which is considered more credible than digital media.

In the 1920s, when radio, television, and video were introduced, the phrase “the media” began to be used. Black and white television quickly became popular in the 1950s, and in the 1960s colour broadcasts started in many countries. Thanks to its audiovisual presentation, television became one of the most important forms of mass media in the 20th century. As a source of news, entertainment, and education, it still attracts a large number of viewers today.

(Adapted from English Workbook 12 – Global Success)

Which of the following best paraphrases the underlined sentence in paragraph 1?

Một sợi dây dài 60cm có hai đầu A và B cố định. Trên dây đang có sóng dừng với 2 nút sóng không kể A và B. Sóng truyền trên dây có bước sóng là:

Phân tử nào sau đây khác so với các phân tử còn lại?

Cho hàm số \(y=\frac{2 x+1}{x-2}\) có đồ thị \((C)\). Hỏi có tất cả bao nhiêu điểm thuộc đồ thị ( \(C\) ) mà tiếp tuyến của (C) tại điểm đó tạo với hai trục tọa độ một tam giác có diện tích bằng \(\frac{2}{5}\) ?

Cho tập $X = \{0; \,1; \,2; \, 3; \,4; \, 5\}$ và tập $A = \{0; \, 2; \,4\}$. Phần bù của $A$ trong $X$ là

Thế kỉ XVI – XVII, tầng lớp quý tộc mới trong xã hội Anh có đặc điểm nào sau đây?

Read the passage carefully

1. Do you find yourself yawning all day at school? You probably need more sleep. However, it is not just how much sleep you get that is important. What you do before bedtime also has a huge effect on how you feel the next day. If you spend time chatting to someone on social media, or reading a book on your e- reader, you are not alone.

2. All devices' screens give out a large amount of blue light, which affects the body's production of the sleep hormone, melatonin, which can change your sleep patterns. So it is not just getting to sleep that becomes hard, but the quality of your sleep also suffers. The result is that you can wake up several times during the night, and have difficulty getting up in the morning.

3. Sleep is food for the brain, so not sleeping well can be a severe problem for anyone, especially for teenagers, because their brains are still developing. When you do not sleep well, it can be difficult to concentrate at school, which makes it harder to learn and get good grades. It can also affect your mood, making you feel sad or anxious. 

4. So, it is clear you should not use your phone before you go to sleep. Why not leave it in another room? Nothing on social media is so important that it cannot wait a few hours! You should rediscover paper books and enjoy feeling tired and sleepy before bedtime rather than wondering why your best friend has not liked your photo! How will you wake up? You do not have to use the alarm on your phone. Go and buy yourself an old-fashioned alarm clock! The negative effects that screen time is having on sleep have been in the news a lot recently, so manufacturers of smartphones and tablets have added a feature to the mobile devices that can help reduce these. Most new phones have a night-time setting that changes the colour of the screen so that it gives out less blue light. If you really cannot avoid going onto social media at bedtime, think about turning on this setting on your phone.

(Adapted from Prepare)

Which of the following can be the best title of the passage?