Soal Uas / Ukk IPA Kelas 4 Sd Semester 2 (Www.Bimbelbrilian.Com)

In ancient times, people created fire by rubbing two stones together. This friction between the stones generated enough heat to ignite dry tinder or kindling, eventually leading to the creation of fire. This method was commonly used by early humans and is still practiced by some indigenous communities today.

The correct answer is "Daging". Daging refers to meat, which is the part of an animal's body that is most commonly used by humans for consumption. It is a valuable source of protein and nutrients in many cultures and is used in various dishes and cuisines around the world.

The sun appears very small because it is located far away from the earth.

Daerah pegunungan yang memiliki sedikit pepohonan bisa mudah terjadi tanah longsor karena tanah yang tidak tertahan oleh akar pepohonan cenderung longsor ke bawah.

A pegas is a spring-like object that stores potential energy when it is compressed or stretched. A ketapel, also known as a slingshot, uses a rubber band as its source of elastic potential energy, similar to a pegas. Therefore, the correct answer is ketapel.

Gaya gesek terjadi antara dua permukaan yang saling bersentuhan dan memiliki kecenderungan untuk melawan gerakan relatif antara keduanya. Dalam hal ini, ban mobil dan jalan raya adalah dua permukaan yang bersentuhan saat mobil bergerak. Ketika ban mobil berputar di atas jalan, terjadi gesekan antara kedua permukaan tersebut. Gaya gesek ini dapat mempengaruhi kecepatan dan kestabilan kendaraan saat bergerak.

The correct answer is "Gaya" because "Gaya" is the Indonesian term for force, which refers to any push or pull on an object. It includes both attractive forces, such as gravity, and repulsive forces, such as electromagnetic forces. Therefore, "Gaya" is the appropriate term to describe all forms of attraction and repulsion.

This answer is correct because when the plate is thrown and falls, it breaks, which demonstrates that force can change the shape of an object.

The factors that affect the motion of a falling object due to gravity are its weight, shape, and surface area. The price or value of the object does not have any influence on its motion.

Penangkapan ikan menggunakan peledak adalah kegiatan yang merusak ekosistem laut. Peledak dapat menyebabkan kerusakan fisik pada habitat laut, seperti terumbu karang dan tanaman laut. Selain itu, peledak juga dapat menyebabkan kematian massal ikan dan organisme laut lainnya. Hal ini dapat mengganggu rantai makanan dan menyebabkan ketidakseimbangan ekosistem laut. Oleh karena itu, penangkapan ikan dengan menggunakan peledak harus dihindari untuk menjaga keberlanjutan ekosistem laut.

The correct answer is "Radiasi". Radiasi refers to the process by which the Sun's heat and energy reach the Earth through electromagnetic waves. This is the most common and well-known way in which the Sun's heat is transferred to the Earth.

Padi bukanlah tumbuhan yang umumnya dimanfaatkan untuk pengobatan. Padi adalah tanaman pangan yang biasanya digunakan sebagai sumber makanan, terutama beras. Tumbuhan lain yang disebutkan dalam pilihan jawaban seperti kumis kucing, lidah buaya, dan jambu biji memiliki manfaat dalam pengobatan. Kumis kucing digunakan dalam pengobatan tradisional untuk mengobati infeksi saluran kemih dan batu ginjal. Lidah buaya memiliki sifat anti-inflamasi dan dapat digunakan untuk mengobati luka bakar dan masalah kulit lainnya. Jambu biji mengandung banyak vitamin dan serat yang baik untuk kesehatan pencernaan.

Indonesia is considered an agrarian country because a majority of its population is engaged in agricultural activities. This means that a significant portion of the population is involved in farming, cultivating crops, and working in the agricultural sector. This focus on agriculture as a means of livelihood suggests that the country relies heavily on its agricultural resources and has a strong connection to the land.

Indonesia has abundant natural resources because its land is very fertile. The fertility of the land allows for the growth of various plants and crops, contributing to the country's rich natural resources. This fertility is likely due to factors such as a favorable climate, volcanic soil, and adequate rainfall, which all contribute to the productivity of the land.

A dinamometer is a tool used to measure the magnitude of force. It is specifically designed to measure forces such as weight and tension. A speedometer, on the other hand, is used to measure the speed of an object. A meteran is a measuring tape or ruler, which is used to measure length or distance. A penggaris is a straightedge ruler used for drawing straight lines. Therefore, the correct answer is dinamometer as it is specifically designed to measure force.

Bintang adalah benda langit yang memancarkan cahayanya sendiri. Bintang adalah bola gas panas yang menghasilkan energi melalui reaksi nuklir di intinya. Cahaya yang dipancarkan oleh bintang tersebut merupakan hasil dari reaksi nuklir yang terjadi di dalamnya. Berbeda dengan Bulan, Bumi, dan Planet yang tidak memancarkan cahayanya sendiri, melainkan hanya memantulkan cahaya matahari.

When we hold the handle of a teapot filled with hot water and our hand feels hot, it proves that thermal energy can be transferred.

An isolator is a material or substance that does not conduct heat well. It is unable to transfer heat efficiently from one place to another. In contrast, a conductor is a material that can easily transfer heat, while a radiator is a device that is designed to dissipate heat. A contractor, on the other hand, is a professional who is hired to perform construction or repair work. Therefore, the correct answer for the given question is isolator.

Sumber daya alam yang dapat diperbaharui adalah mutiara. Mutiara adalah hasil dari organisme hidup seperti kerang. Organisme ini dapat menghasilkan mutiara baru setelah mutiara yang ada diambil. Oleh karena itu, mutiara dapat diperbaharui dan tidak akan habis jika dikelola dengan baik. Emas, perak, dan perunggu bukanlah sumber daya alam yang dapat diperbaharui karena mereka tidak dihasilkan oleh organisme hidup dan jumlahnya terbatas.

The given correct answer, "Pasang naik," refers to the phenomenon where the sea level rises, causing an increase in the amount of seawater and a shift in the coastline. This is commonly known as high tide or incoming tide.

Energi adalah kemampuan untuk melakukan usaha. Energi dapat berubah bentuk dan dipindahkan dari satu objek ke objek lainnya, tetapi jumlah total energi dalam suatu sistem tetap konstan. Energi dapat digunakan untuk melakukan pekerjaan, menghasilkan gerakan, dan menghasilkan perubahan dalam suatu sistem.

Erosi adalah pengikisan lapisan tanah yang disebabkan oleh gerakan air. Air yang mengalir dapat memisahkan partikel-partikel tanah dan membawanya pergi, menyebabkan pengikisan tanah. Proses ini dapat terjadi akibat hujan yang deras atau air sungai yang mengalir dengan cepat. Erosi dapat menyebabkan kerusakan lingkungan, seperti hilangnya lapisan tanah subur dan terjadinya banjir.

The correct answer is "Konveksi." Konveksi refers to the transfer of heat through the movement of fluids, such as air or water. In the given question, the occurrence of land and sea breezes is mentioned, which involves the movement of air due to temperature differences between the land and sea. This movement of air is an example of convection, making it the appropriate answer.

The correct answer states that plants can hold the soil from water. This is because the roots of plants act as anchors, holding the soil particles together and preventing them from being washed away by water. Additionally, the roots also help in absorbing excess water, reducing the chances of erosion. Therefore, planting a lot of vegetation can help in preventing erosion by stabilizing the soil and reducing the impact of water flow.

Keju is the only option that is not a plant-based material. It is a dairy product made from animal milk. Wol, sutera, and kayu are all materials that can be derived from plants.