Ta nhận biết trực tiếp được một vật có nhiệt năng khi nó có khả năng nào?

Bằng các giác quan, căn cứ vào đâu mà ta nhận biết được là một vật có nhiệt năng?

Gọi tên năng lượng chính được sử dụng khi đọc sách ở sân trường?

Dạng năng lượng nào cần thiết để nước đá tan thành nước?

Dụng cụ nào sau đây khi hoạt động biến đổi phần lớn điện năng mà nó nhận vào thành nhiệt năng?

Dạng năng lượng được sinh ra do chuyển động của vật mà có là:

Chúng ta nhận biết điện năng từ ổ cắm điện cung cấp cho máy tính thông qua biểu hiện:

Fill in each numbered blank with one suitable word or phrase.

One of the  (1)___ waterfalls in the world lies on the Zimbezi River, which (2)______ the border between Zambia and Zimbabe. Some people think it is one of the most beautiful sights (3)_____  the world. Upstream, the river  (4)______ through a wide valley. You could probably (5)_____ Victoria Falls from 25 to 40 miles away and see its spray rising 1 000 feet into the air (6)_____ seven miles away. Long before you even see the waterfalls you can (7) _____ the roaring of the water. Victoria Falls was (8)___  by David Livingstone in 1855. The falls were named in honor of Queen Victoria. There is no doubt that Victoria Falls is a Wonder of The Natural World.

Victoria Falls was (8)___  by David Livingstone in 1855.

Fill in each numbered blank with one suitable word or phrase.

One of the  (1)___ waterfalls in the world lies on the Zimbezi River, which (2)______ the border between Zambia and Zimbabe. Some people think it is one of the most beautiful sights (3)_____  the world. Upstream, the river  (4)______ through a wide valley. You could probably (5)_____ Victoria Falls from 25 to 40 miles away and see its spray rising 1 000 feet into the air (6)_____ seven miles away. Long before you even see the waterfalls you can (7) _____ the roaring of the water. Victoria Falls was (8)___  by David Livingstone in 1855. The falls were named in honor of Queen Victoria. There is no doubt that Victoria Falls is a Wonder of The Natural World

Long before you even see the waterfalls you can (7) _____ the roaring of the water.

Fill in each numbered blank with one suitable word or phrase.

One of the  (1)___ waterfalls in the world lies on the Zimbezi River, which (2)______ the border between Zambia and Zimbabe. Some people think it is one of the most beautiful sights (3)_____  the world. Upstream, the river  (4)______ through a wide valley. You could probably (5)_____ Victoria Falls from 25 to 40 miles away and see its spray rising 1 000 feet into the air (6)_____ seven miles away. Long before you even see the waterfalls you can (7) _____ the roaring of the water. Victoria Falls was (8)___  by David Livingstone in 1855. The falls were named in honor of Queen Victoria. There is no doubt that Victoria Falls is a Wonder of The Natural World.

You could probably see Victoria Falls from 25 to 40 miles away  see its spray rising 1 000 feet into the air (6)_____ seven miles away.

Fill in each numbered blank with one suitable word or phrase.

One of the  (1)___ waterfalls in the world lies on the Zimbezi River, which (2)______ the border between Zambia and Zimbabe. Some people think it is one of the most beautiful sights (3)_____  the world. Upstream, the river  (4)______ through a wide valley. You could probably (5)_____ Victoria Falls from 25 to 40 miles away and see its spray rising 1 000 feet into the air (6)_____ seven miles away. Long before you even see the waterfalls you can (7) _____ the roaring of the water. Victoria Falls was (8)___  by David Livingstone in 1855. The falls were named in honor of Queen Victoria. There is no doubt that Victoria Falls is a Wonder of The Natural World.

You could probably (5)_____ Victoria Falls from 25 to 40 miles away

Fill in each numbered blank with one suitable word or phrase.

One of the  (1)___ waterfalls in the world lies on the Zimbezi River, which (2)______ the border between Zambia and Zimbabe. Some people think it is one of the most beautiful sights (3)_____  the world. Upstream, the river  (4)______ through a wide valley. You could probably (5)_____ Victoria Falls from 25 to 40 miles away and see its spray rising 1 000 feet into the air (6)_____ seven miles away. Long before you even see the waterfalls you can (7) _____ the roaring of the water. Victoria Falls was (8)___  by David Livingstone in 1855. The falls were named in honor of Queen Victoria. There is no doubt that Victoria Falls is a Wonder of The Natural World.

Upstream, the river  (4)______ through a wide valley.

Fill in each numbered blank with one suitable word or phrase.

One of the  (1)___ waterfalls in the world lies on the Zimbezi River, which (2)______ the border between Zambia and Zimbabe. Some people think it is one of the most beautiful sights (3)_____  the world. Upstream, the river  (4)______ through a wide valley. You could probably (5)_____ Victoria Falls from 25 to 40 miles away and see its spray rising 1 000 feet into the air (6)_____ seven miles away. Long before you even see the waterfalls you can (7) _____ the roaring of the water. Victoria Falls was (8)___  by David Livingstone in 1855. The falls were named in honor of Queen Victoria. There is no doubt that Victoria Falls is a Wonder of The Natural World.

Some people think it is one of the most beautiful sights (3)_____  the world.

Fill in each numbered blank with one suitable word or phrase.

One of the  (1)___ waterfalls in the world lies on the Zimbezi River, which (2)______ the border between Zambia and Zimbabe. Some people think it is one of the most beautiful sights (3)_____  the world. Upstream, the river  (4)______ through a wide valley. You could probably (5)_____ Victoria Falls from 25 to 40 miles away and see its spray rising 1 000 feet into the air (6)_____ seven miles away. Long before you even see the waterfalls you can (7) _____ the roaring of the water. Victoria Falls was (8)___  by David Livingstone in 1855. The falls were named in honor of Queen Victoria. There is no doubt that Victoria Falls is a Wonder of The Natural World.

the Zimbezi River, which (2)______ the border between Zambia and Zimbabe.

Fill in each numbered blank with one suitable word or phrase.

One of the  (1)___ waterfalls in the world lies on the Zimbezi River, which (2)______ the border between Zambia and Zimbabe. Some people think it is one of the most beautiful sights (3)_____  the world. Upstream, the river  (4)______ through a wide valley. You could probably (5)_____ Victoria Falls from 25 to 40 miles away and see its spray rising 1 000 feet into the air (6)_____ seven miles away. Long before you even see the waterfalls you can (7) _____ the roaring of the water. Victoria Falls was (8)___  by David Livingstone in 1855. The falls were named in honor of Queen Victoria. There is no doubt that Victoria Falls is a Wonder of The Natural World.

One of the  (1)___ waterfalls in the world lies on the Zimbezi River

Choose the word or phrase among A, B, C or D that best fits the blank space in the word following letter.

Dear Mary,

I’m very glad to know that you are going to visit Ha Noi this summer. Would you like me to tell you something (1) ______ Ha Noi before you go?

Well, Ha Noi is a cultural and political center of Viet Nam. In Ha Noi, you can find ancient houses and modern buildings. Ha Noi is a large city now, and there are many places worth (2) _____. You can visit Ho Chi Minh’s Mausoleum, One-Pillar Pagoda, Kiem Lake and West Lake. Besides, you can enjoy the Vietnamese food, (3) _____________, grilled fish, spring rolls, steamed rolls and “pho”; - a special dish of Viet Nam. However, I would like to recommend that you (4) _______visit Ha Long Bay and Sa Pa because these places attract a lot of visitors due to their magnificent caves, beautiful limestone islands and natural landscapes in Ha Long Bay and their tribal villages, nice mountain slopes and jungles streams in Sa Pa.

I am looking forward to seeing you in Ha Noi and I hope you (5) have a nice holiday in Viet Nam.

Love

Lan

I hope you (5) ________have a nice holiday in Viet Nam.

Choose the word or phrase among A, B, C or D that best fits the blank space in the word following letter.

Dear Mary,

I’m very glad to know that you are going to visit Ha Noi this summer. Would you like me to tell you something (1) ______ Ha Noi before you go?

Well, Ha Noi is a cultural and political center of Viet Nam. In Ha Noi, you can find ancient houses and modern buildings. Ha Noi is a large city now, and there are many places worth (2) _____. You can visit Ho Chi Minh’s Mausoleum, One-Pillar Pagoda, Kiem Lake and West Lake. Besides, you can enjoy the Vietnamese food, (3) _____________, grilled fish, spring rolls, steamed rolls and “pho”; - a special dish of Viet Nam. However, I would like to recommend that you (4) _______visit Ha Long Bay and Sa Pa because these places attract a lot of visitors due to their magnificent caves, beautiful limestone islands and natural landscapes in Ha Long Bay and their tribal villages, nice mountain slopes and jungles streams in Sa Pa.

I am looking forward to seeing you in Ha Noi and I hope you (5) have a nice holiday in Viet Nam.

Love

Lan

However, I would like to recommend that you (4) _______visit Ha Long Bay and Sa Pa

Choose the word or phrase among A, B, C or D that best fits the blank space in the word following letter.

Dear Mary,

I’m very glad to know that you are going to visit Ha Noi this summer. Would you like me to tell you something (1) ______ Ha Noi before you go?

Well, Ha Noi is a cultural and political center of Viet Nam. In Ha Noi, you can find ancient houses and modern buildings. Ha Noi is a large city now, and there are many places worth (2) _____. You can visit Ho Chi Minh’s Mausoleum, One-Pillar Pagoda, Kiem Lake and West Lake. Besides, you can enjoy the Vietnamese food, (3) _____________, grilled fish, spring rolls, steamed rolls and “pho”; - a special dish of Viet Nam. However, I would like to recommend that you (4) _______visit Ha Long Bay and Sa Pa because these places attract a lot of visitors due to their magnificent caves, beautiful limestone islands and natural landscapes in Ha Long Bay and their tribal villages, nice mountain slopes and jungles streams in Sa Pa.

I am looking forward to seeing you in Ha Noi and I hope you (5) have a nice holiday in Viet Nam.

Love

Lan

Besides, you can enjoy the Vietnamese food, (3) _______, grilled fish, spring rolls, steamed rolls and “pho”; - a special dish of Viet Nam. 

Choose the word or phrase among A, B, C or D that best fits the blank space in the word following letter.

Dear Mary,

I’m very glad to know that you are going to visit Ha Noi this summer. Would you like me to tell you something (1) ______ Ha Noi before you go?

Well, Ha Noi is a cultural and political center of Viet Nam. In Ha Noi, you can find ancient houses and modern buildings. Ha Noi is a large city now, and there are many places worth (2) _____. You can visit Ho Chi Minh’s Mausoleum, One-Pillar Pagoda, Kiem Lake and West Lake. Besides, you can enjoy the Vietnamese food, (3) _____________, grilled fish, spring rolls, steamed rolls and “pho”; - a special dish of Viet Nam. However, I would like to recommend that you (4) _______visit Ha Long Bay and Sa Pa because these places attract a lot of visitors due to their magnificent caves, beautiful limestone islands and natural landscapes in Ha Long Bay and their tribal villages, nice mountain slopes and jungles streams in Sa Pa.

I am looking forward to seeing you in Ha Noi and I hope you (5) have a nice holiday in Viet Nam.

Love

Lan

Ha Noi is a large city now, and there are many places worth (2) _____.

Choose the word or phrase among A, B, C or D that best fits the blank space in the word following letter.

Dear Mary,

I’m very glad to know that you are going to visit Ha Noi this summer. Would you like me to tell you something (1) ______ Ha Noi before you go?

Well, Ha Noi is a cultural and political center of Viet Nam. In Ha Noi, you can find ancient houses and modern buildings. Ha Noi is a large city now, and there are many places worth (2) _____. You can visit Ho Chi Minh’s Mausoleum, One-Pillar Pagoda, Kiem Lake and West Lake. Besides, you can enjoy the Vietnamese food, (3) _____________, grilled fish, spring rolls, steamed rolls and “pho”; - a special dish of Viet Nam. However, I would like to recommend that you (4) _______visit Ha Long Bay and Sa Pa because these places attract a lot of visitors due to their magnificent caves, beautiful limestone islands and natural landscapes in Ha Long Bay and their tribal villages, nice mountain slopes and jungles streams in Sa Pa.

I am looking forward to seeing you in Ha Noi and I hope you (5) have a nice holiday in Viet Nam.

Love

Lan

Would you like me to tell you something (1) ______ Ha Noi before you go?

Năng lượng có thể truyền từ vật này sang vật khác thông qua:

Một học sinh xách một chiếc cặp nặng 100 N đi từ tầng 1 lên tầng 3 của trường học. Biết mỗi tầng của trường học cao 3,5m và 1 J là năng lượng cần để nâng một vật nặng 1 N lên độ cao 1 m. Hỏi năng lượng mà học sinh này cần sử dụng là bao nhiêu (J)?

Tại sao bơi lội lại tốn nhiều năng lượng hơn đá bóng?

Để chơi bóng đá trong một hiệp 45 phút, cầu thủ cần một năng lượng bao nhiêu?

Tại sao trong lúc ngồi yên, cơ thể vẫn cần năng lượng?

Một học sinh lớp 6 cần trung bình 2000 kcal mỗi ngày. Tính theo đơn vị Jun thì năng lượng này bằng bao nhiêu? Biết 1cal≈4,2J1cal≈4,2J và 1kcal=1000cal1kcal=1000cal.

Hoàn thành câu sau:

“Năng lượng _____ của Mặt Trời chiếu xuống Trái Đất được các loài thực vật hấp thụ để _____ và _____”.

Chọn đáp án đúng:

Đơn vị của năng lượng là:

Điền từ còn thiếu vào chỗ trống:

“Khi năng lượng … thì lực tác dụng có thể …”.

Chọn đáp án sai?

Read the passage carefully and answer the question.

The ancient town of Hoi An lies on the Thu Bon River, more than 30 kilometers to the south of Da Nang. Hoi An is famous for its old temples, pagodas, tiled-roofed houses and narrow streets. Tourists can visit the relics of Sa Huynh and Cham Civilization. They can also enjoy the beautiful scenery of the Thu Bon River, Cua Dai Beach, etc. In recent years, Hoi An has become a very popular tourist destination in Viet Nam. Importantly, the committee of the World Heritages of UNESCO officially certified Hoi An as a World Heritage site in 1999.

What can tourists do in Hoi An?

Read the passage carefully and answer the question.

The ancient town of Hoi An lies on the Thu Bon River, more than 30 kilometers to the south of Da Nang. Hoi An is famous for its old temples, pagodas, tiled-roofed houses and narrow streets. Tourists can visit the relics of Sa Huynh and Cham Civilization. They can also enjoy the beautiful scenery of the Thu Bon River, Cua Dai Beach, etc. In recent years, Hoi An has become a very popular tourist destination in Viet Nam. Importantly, the committee of the World Heritages of UNESCO officially certified Hoi An as a World Heritage site in 1999.

Where is Hoi An?

Read the passage carefully and answer the question.

The ancient town of Hoi An lies on the Thu Bon River, more than 30 kilometers to the south of Da Nang. Hoi An is famous for its old temples, pagodas, tiled-roofed houses and narrow streets. Tourists can visit the relics of Sa Huynh and Cham Civilization. They can also enjoy the beautiful scenery of the Thu Bon River, Cua Dai Beach, etc. In recent years, Hoi An has become a very popular tourist destination in Viet Nam. Importantly, the committee of the World Heritages of UNESCO officially certified Hoi An as a World Heritage site in 1999.

Thu Bon River and Cua Dai have very beautiful ______.

Read the passage carefully and answer the question.

The ancient town of Hoi An lies on the Thu Bon River, more than 30 kilometers to the south of Da Nang. Hoi An is famous for its old temples, pagodas, tiled-roofed houses and narrow streets. Tourists can visit the relics of Sa Huynh and Cham Civilization. They can also enjoy the beautiful scenery of the Thu Bon River, Cua Dai Beach, etc. In recent years, Hoi An has become a very popular tourist destination in Viet Nam. Importantly, the committee of the World Heritages of UNESCO officially certified Hoi An as a World Heritage site in 1999.

The streets in Hoi An are very _______.

Read the passage carefully and answer the question.

The ancient town of Hoi An lies on the Thu Bon River, more than 30 kilometers to the south of Da Nang. Hoi An is famous for its old temples, pagodas, tiled-roofed houses and narrow streets. Tourists can visit the relics of Sa Huynh and Cham Civilization. They can also enjoy the beautiful scenery of the Thu Bon River, Cua Dai Beach, etc. In recent years, Hoi An has become a very popular tourist destination in Viet Nam. Importantly, the committee of the World Heritages of UNESCO officially certified Hoi An as a World Heritage site in 1999.

Hoi An lies____ the River Thu Bon.

Read the passage carefully and answer the question.

Da Nang has a population of nearly 800,000 people. The Han River flows through the city. The city part on the east bank is the newest and more spacious. The city part on the west bank is more crowded. There are five bridges across the river. The Han River Bridge is the newest one now. The cost of living in Da Nang is the lowest in Central Viet Nam. Da Nang has many beaches. Among them, Non Nuoc Beach is one of the beautiful beaches in the world. But walking in the street on a summer afternoon is not a good idea in Da Nang. There are not many trees so there are not many shadows. It is often very hot at noon.

What is Non Nuoc Beach like?

Read the passage carefully and answer the question.

Da Nang has a population of nearly 800,000 people. The Han River flows through the city. The city part on the east bank is the newest and more spacious. The city part on the west bank is more crowded. There are five bridges across the river. The Han River Bridge is the newest one now. The cost of living in Da Nang is the lowest in Central Viet Nam. Da Nang has many beaches. Among them, Non Nuoc Beach is one of the beautiful beaches in the world. But walking in the street on a summer afternoon is not a good idea in Da Nang. There are not many trees so there are not many shadows. It is often very hot at noon.

Which bridge is the newest? 

Read the passage carefully and answer the question.

Da Nang has a population of nearly 800,000 people. The Han River flows through the city. The city part on the east bank is the newest and more spacious. The city part on the west bank is more crowded. There are five bridges across the river. The Han River Bridge is the newest one now. The cost of living in Da Nang is the lowest in Central Viet Nam. Da Nang has many beaches. Among them, Non Nuoc Beach is one of the beautiful beaches in the world. But walking in the street on a summer afternoon is not a good idea in Da Nang. There are not many trees so there are not many shadows. It is often very hot at noon.

How many bridges across the Han River?

Read the passage carefully and answer the question.

Da Nang has a population of nearly 800,000 people. The Han River flows through the city. The city part on the east bank is the newest and more spacious. The city part on the west bank is more crowded. There are five bridges across the river. The Han River Bridge is the newest one now. The cost of living in Da Nang is the lowest in Central Viet Nam. Da Nang has many beaches. Among them, Non Nuoc Beach is one of the beautiful beaches in the world. But walking in the street on a summer afternoon is not a good idea in Da Nang. There are not many trees so there are not many shadows. It is often very hot at noon.

Which part of the city is more spacious?