Latihan Soal IPA Kelas 9 Semester 2

Explanation
The correct answer is "Dekat kutub selatan geografis." This means that the North Magnetic Pole of the Earth is located near the South Geographic Pole. The North Magnetic Pole is the point on the Earth's surface where the planet's magnetic field points vertically downwards. It is not located at the North Geographic Pole, as the question might suggest.

Explanation
The correct answer is Besi, Tembaga. Both iron (besi) and copper (tembaga) are magnetic materials. They have the ability to attract or repel other magnetic materials.

Explanation
When a current-carrying wire is placed in a magnetic field, it experiences a force known as the Lorentz force. This force is perpendicular to both the direction of the current and the magnetic field. The magnitude of the force is given by the equation F = BIL, where B is the magnetic field strength, I is the current, and L is the length of the wire in the magnetic field. Therefore, the correct answer is Gaya Lorentz.

Explanation
Diamagnetic materials are those that cannot be attracted to a magnet. This is because they do not have any unpaired electrons in their atomic or molecular orbitals, which are necessary for magnetic attraction. Therefore, when a diamagnetic material is placed in a magnetic field, it creates a weak opposing magnetic field, causing it to repel from the magnet. This is in contrast to paramagnetic and ferromagnetic materials, which can be attracted to a magnet due to the presence of unpaired electrons. Elektromagnetik is not a term used to describe materials in relation to magnetism.

Explanation
Oersted adalah ilmuwan yang menemukan bahwa arus listrik dapat menghasilkan medan magnet.

Explanation
Kuat arus listrik adalah salah satu faktor yang memperbesar Gaya Lorentz. Gaya Lorentz merupakan gaya yang terjadi pada suatu benda yang bergerak dalam medan magnet. Gaya ini diberikan oleh persamaan F = qvB, di mana q adalah muatan benda, v adalah kecepatan benda, dan B adalah medan magnet. Dalam persamaan tersebut, kuat arus listrik dapat dianggap sebagai kecepatan benda. Jadi, semakin besar kuat arus listrik yang mengalir pada suatu penghantar, semakin besar pula gaya Lorentz yang terjadi pada penghantar tersebut.

Explanation
Jupiter is the largest planet in our solar system. It is known for its massive size and is more than twice as large as all the other planets combined. Jupiter's size is mainly due to its composition, as it is primarily made up of gas and does not have a solid surface like Earth. Its immense size also contributes to its strong gravitational pull, which affects the orbits of other planets and objects in the solar system.

Explanation
The correct answer is Merkurius. Merkurius is a planet in our solar system and is the closest planet to the Sun. It is named after the Roman god Mercury, known for his speed and agility. Merkurius is a small and rocky planet, similar in size to Earth's Moon. It has a thin atmosphere and extreme temperatures, ranging from extremely hot during the day to extremely cold at night. Merkurius also has a heavily cratered surface, indicating a long history of impacts from asteroids and comets.

Explanation
The correct answer is Litosfer. The other options, Fotosfer, Kromosfer, and Korona, are all layers that make up the sun. Litosfer, on the other hand, is not a layer of the sun but rather refers to the solid outermost layer of the Earth.

Explanation
The correct answer is "Semi". From March 21st to June 21st, the Northern Hemisphere experiences the season of spring, which is characterized by mild temperatures, blooming flowers, and longer daylight hours. This is why the correct answer is "Semi", which refers to the season of spring.