简谐运动(Simple harmonic motion)(SHM)(直译简单和谐运动)是最基本也最简单的机械振动。当某物体进行简谐运动时,物体所受的力跟位移成正比,并且总是指向平衡位置。它是一种由自身系统性质决定的周期性运动。(如单摆运动和弹簧振子运动)实际上简谐振动就是正弦振动。故此在无线电学中简谐信号实际上...
What is kinetic energy? Mechanical Energy Mechanical energy is the energy possessed by an object by virtue of its mechanics. The mechanical energy is of two types Kinetic Energy Potential Energy Potential energy can be of further many types. Answer and Explanation: 1 Become a Study.com memb...
what is kinetic energy? 70. what is kinetic energy? energy stored in a body at rest energy is associated with the motion of an object potential energy due to gravitational force energy stored in a compressed spring answer the correct answer is: b) energy is associated with the motion of ...
A car of mass 1000 kg is moving at a speed of 20 m/s. What is its kinetic energy? A. 200,000 J B. 400,000 J C. 100,000 J D. 50,000 J 相关知识点: 试题来源: 解析 A。动能的计算公式为 Ek = 1/2 mv²,其中 m 是质量,v 是速度。代入数值,Ek = 1/2 × 1000 × 20...
Kinetic energy is a form of energy that an object or a particle has by reason of its motion. If work, which transfers energy, is done on an object by applying a net force, the object speeds up and thereby gains kinetic energy. Kinetic energy is a property of a moving object or ...
The Definition of Kinetic Energy Kinetic energy is theenergyan object possesses due to its motion. An object ofmassm moving at velocity v has a kinetic energy equal to ½mv2. Example An example ofkinetic energyis a swinging pendulum.
A car of mass 500 kg is moving at a speed of 20 m/s. What is its kinetic energy? A. 100000 J B. 10000 J C. 20000 J D. 50000 J 相关知识点: 试题来源: 解析 A。动能的计算公式为 Ek = 1/2mv²,代入数据可得 Ek = 1/2×500×20² = 100000 J。选项 B 计算错误,选项 C...
Influx Productions/Getty Images Kinetic energy is theenergyan object possesses due to its motion. An object ofmassm moving at velocity v has a kinetic energy equal to ½mv2. Example An example ofkinetic energyis a swinging pendulum.
we know that energy is conserved, i.e., it cannot be created or destroyed; it can only be converted from one form to another. in these two cases, the kinetic energy is converted to potential energy because while it is not actually doing work, it has the potential to do work. if we...
Physics Energy. Law of Conservation of Energy energy cannot be created or destroyed only transferred from one form to another Electric LightChemical. Potential and Kinetic Energy Unit 7 Energy. Energy is the ability to do work or cause change. I can work…but I won’t. Types...