Try Out Fisika Smp/Mts Tahun 2012/2013 By Dun-soft (Part 2)

The correct answer is "Negatif, karena telah menerima beberapa elektron dari kain." This is because when the plastic ruler is rubbed with the cloth, it gains electrons from the cloth. This causes the ruler to become negatively charged, which allows it to attract small paper particles.

The correct answer is "cepat rambat cahaya jauh lebih besar daripada cepat rambat bunyi" because light travels much faster than sound. When there is lightning, we see the flash of light first before hearing the sound because light waves travel at a much higher speed than sound waves.

The correct answer is 1/2 kali because when an object is placed in front of a mirror, the image formed is virtual and upright. The magnification of the mirror is determined by the ratio of the image distance to the object distance. In this case, since the object is placed at a distance of 4 cm from the mirror, the image distance will also be 4 cm. Therefore, the magnification is 1/2, indicating that the image is half the size of the object.

An asteroid is a small rocky object that orbits the sun, typically found in the asteroid belt between Mars and Jupiter. In this question, it is stated that the object's orbit is between planet 4 and 5, which suggests that it is located in the asteroid belt. Therefore, the correct answer is asteroid.

The image shows a person with a close-up view of an object. This indicates that the person has a condition called "rabun dekat" or nearsightedness, where they have difficulty seeing objects that are far away. To correct this condition, they would need to use "lensa cembung" or convex lenses, which are thicker in the middle and thinner at the edges, to help focus light properly onto the retina. Therefore, the correct answer is "rabun dekat dan lensa cembung".

The total energy consumption can be calculated by multiplying the power rating of each appliance by the number of hours it is used per day. The total energy consumption for the 3 lamps (40W each) is 3 * 40 * 12 = 1,440 Wh. The total energy consumption for the 2 lamps (25W each) is 2 * 25 * 12 = 600 Wh. The energy consumption for the TV (120W) is 120 * 10 = 1,200 Wh. Adding up all the energy consumption, we get 1,440 + 600 + 1,200 = 3,240 Wh. Converting this to kWh, we divide by 1,000 to get 3.24 kWh. Multiplying this by the tariff of Rp 800,00 / kWh, we get Rp 3.24 * 800 = Rp 2,592. Multiplying this by 30 days, we get Rp 2,592 * 30 = Rp 77,760. Therefore, the correct answer is Rp 77,760.

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Based on the given image, the distance between two adjacent wave crests is shown. The wavelength is the distance between two consecutive crests, and it can be measured by counting the number of crests within a given distance. In this case, there are two crests within a distance of 2 meters, indicating that the wavelength is 2 meters. The wave speed can be calculated by dividing the wavelength by the period. Since the period is not given, we cannot calculate the wave speed accurately. Therefore, the correct answer cannot be determined based on the information provided.

Based on the given picture, it can be determined that the North (U) pole is on iron bar A and the South (S) pole is on iron bar B. However, the polarity of the bars is temporary, meaning that it can be reversed.

Pada posisi 2, bulan berada di sisi yang berlawanan dengan matahari dan bumi. Hal ini menyebabkan gaya tarik gravitasi bulan dan matahari terhadap air laut saling bertambah. Akibatnya, terjadi peningkatan kenaikan air laut yang paling besar.