When measuring the mass of an object with a balance, what should be done first? A. Putting the object on the balance pan directly. B. Adjusting the balance to make the pointer point to the zero mark. C. Recording the reading immediately. D. Ignoring the balance and using an E. ...
What instrument is used to measure the mass of a substance? A. balance B. graduated cylinder C. beaker D. flask 相关知识点: 试题来源: 解析 A。balance 是天平,用于测量物质的质量。graduated cylinder 是量筒测量体积;beaker 是烧杯;flask 是烧瓶,都不能测量质量。反馈 收藏 ...
They are both used to measure the amount of matter (mass) in a given substance. MassMass is a measure of the inertia of an object; it tells us how much the object resists changes in its velocity. Mass tells us how much "stuff" an object has in it. More sp...
In a conservative system in which only the conservative force or forces work, the total kinetic energy (the potent energy plus the kinetic energy) of an object always remains constant.Answer and Explanation: Given The mass of the object...
In the given problem, mass of the solute, mass of the solvent and volume of the solution is known. However, only information related to the masses are sufficient to compute the mass percentage of the components.Answer and Explanation:
A. Decreases B. Remains the same C. Increases D. Becomes zero 相关知识点: 试题来源: 解析 C。中文解析:文章中明确提到“As the mass of an object increased, the weight also increased.”,即随着物体质量的增加,重量也增加。反馈 收藏
A. The balance was not calibrated properly. B. The color of the substance was bright. C. The laboratory was too cold. D. The students were in a hurry. 相关知识点: 试题来源: 解析 A。解析:测量物质质量不一致可能是因为天平没有正确校准,A 选项正确。B 选项物质颜色亮不会影响质量测量。C 选...
What is the density of an object has a mass of 12.0 g and a volume of 96.0 ml? Density: Physics states that when a substance has some mass and volume, its density will be the division of mass to its volume. For the higher density objects, the distan...
What equipment digitally measures the mass of an object? The length of a spring increases by 7.20 cm from its relaxed length when a mass of 1.39 kg is hung in equilibrium from the spring. The mass is removed, and another mass is hung from the spring, stretching ...
Mass is defined as the amount of matter that an object contains, while weight is the force that a mass-containing body exerts on another body purely under the influence of gravity. In our vernacular, “mass” and “weight” are terms that are often seamlessly interchanged, but technically, ...