Quiz Soal Un Fisika

The correct answer is A and E, because when pendulum C swings, pendulums A and E will also swing due to the same frequency.

The correct answer is "Besi dapat ditarik magnet adalah sifat fisika, besi berkarat adalah sifat kimia." This is because the ability of iron to be attracted by a magnet is a physical property, as it is related to the magnetic properties of the material. On the other hand, the rusting of iron when it reacts with oxygen in the air is a chemical property, as it involves a chemical reaction between iron and oxygen.

The correct answer is U-S-U-S because when the iron bar KL and MN are brought near a magnet, the ends K and N become opposite poles of the magnet, while the ends L and M become the same poles. Therefore, the correct sequence of poles from K to N is U-S-U-S.

The given question describes a situation where a person mixes 2 kg of water at 100ºC with 5 kg of water at 30ºC. To find the final temperature of the mixture, we can use the principle of conservation of energy. The heat lost by the hot water is equal to the heat gained by the cold water. By applying the formula for heat transfer, we can calculate that the final temperature of the mixture is 50ºC.

From the given graph, we can observe that the amplitude of the wave is 4 cm, the period of the wave is 0.4 s, and the wavelength of the wave is 32 cm. Therefore, the correct answer is B.

The correct answer is (4), (2), dan (1). This is because the question asks for the correct order of the derived quantities, SI units, and appropriate measuring instruments. The correct order is to first determine the derived quantities, then assign the appropriate SI units to those quantities, and finally use the correct measuring instruments to measure those quantities.

The correct answer is C. In the given sequence of events, the shape of zat P remains unchanged, indicating that it is a solid. The shape of zat Q changes, suggesting that it is a liquid. The shape of zat R remains unchanged, indicating that it is also a solid. However, the volume of zat R remains constant, suggesting that it is incompressible.

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The correct answer is 12.000 kJ. The kinetic energy of an object can be calculated using the formula KE = 1/2mv^2, where m is the mass of the object and v is its velocity. In this case, the mass of the car is given as 1,500 kg and its velocity is 144 km/h. To convert the velocity to m/s, we divide it by 3.6 (1 km/h = 1/3.6 m/s). Plugging in the values into the formula, we get KE = 1/2 * 1500 * (144/3.6)^2 = 1/2 * 1500 * 40^2 = 12,000 kJ.

The energy consumed by an electrical device can be calculated using the formula: Energy (in Joules) = Power (in Watts) x Time (in seconds). In this case, the power of the lamp can be calculated using the formula: Power (in Watts) = Voltage (in Volts) x Current (in Amperes). Given that the voltage is 220V and the current is 500mA (or 0.5A), we can calculate the power as 220V x 0.5A = 110W. Since the time is given as 10 minutes (or 600 seconds), we can calculate the energy as 110W x 600s = 66000J. Therefore, the correct answer is 66000J.

Based on the given picture, there are two suction cups attached to a surface. In order for them to be balanced, the force exerted by the second suction cup (F2) must be equal to the force exerted by the first suction cup (F1). Since the force exerted by the first suction cup is 100 N, the correct answer is 100 N.

The correct answer is "perubahan jumlah garis gaya magnet dalam kumparan makin cepat" because when the bicycle moves faster, the dynamo spins faster, causing a greater rate of change in the magnetic field lines passing through the coil. This induces a larger current in the coil, resulting in a brighter light from the bicycle lamp.

The position of the moon that causes the highest tidal wave is when the moon is directly opposite the sun, which is known as the full moon. This is because the gravitational pull of the moon and the sun align and create a stronger force on the Earth's oceans, causing the high tide to be at its highest point. In option 1, the moon is directly opposite the sun, indicating a full moon position, making it the correct answer.

From the given information, Budi witnessed a reaction between carbide and water and felt an increase in temperature on the glass walls of the reaction vessel. This suggests that there was a release of heat during the reaction, indicating an exothermic chemical change.

Based on the given information, the object is located in front of the lens and its image appears as a picture. The distance between the object and the lens is known as the focal length. Since the image is formed at a distance of 15 cm, it indicates that the focal length of the lens is also 15 cm.

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Based on the given circuit diagram, the current flowing through the resistor R1 is equal to the current flowing through the parallel combination of resistors R2 and R3. Since R2 and R3 have the same resistance value, the current through each of them will be equal. Therefore, the total current I1 can be calculated by adding the currents through R1, R2, and R3. Since the current through R1 is 4.5 A and the current through R2 and R3 is 5.5 A each, the total current I1 is 4.5 A + 5.5 A + 5.5 A = 15.5 A.

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Kaca memperoleh muatan listrik positif karena melepaskan elektron ke sutera.

The correct answer is 3 and 5. This is because HNO3 (nitric acid) and HCl (hydrochloric acid) are both strong acids, while the other compounds listed (KOH, NaCl, and KNO3) are not acids.