Energy Energy is a very broad term that means the ability to move objects. There are several units of energy including the joule and calorie. In the physics, discipline, joules are commonly used to express the mechanical energy in an object. ...
What are the factors on which the potential energy depends ? 01:13 What is the condition for a force to do work on a body ? 01:24 (a) What is mechanical energy ? (b) What is electromagnetic energy ? 01:50 Express 1250 N m in terms of Kilojoules . 00:46 Gravitational Potential E...
(a) Mechanical energy = KE + PE. (b) It is the general name of electic and magnetic energies.
What must be true of an object that has gravitational potential energy? How are potential energy, kinetic energy, and total energy related? What is free-fall acceleration toward the Sun at the distance of the Earth's orbit? A 500-kg satellite orbits at a distance from the Earth...
Mechanical properties that measure how a material deforms when it is stretched are often referred to as elasticity or elongation. As with strength, there is more than one type of elasticity measurement. Ultimate elongation can refer to the extent which a material can be stretched before it breaks...
百度试题 结果1 题目What is the purpose of a flywheel in a mechanical system? A. To store energy B. To increase speed C. To reduce noise D. To dissipate heat 相关知识点: 试题来源: 解析 A 反馈 收藏
Heat or thermal energy can be transformed into mechanical energy. By using the expansive property of gases or steam, gas or steam turbines transform the thermal energy into pressure or velocity. These are forms of mechanical energy. Elevation over a base level is another form of energy, which ...
Thermal energy is often used interchangeably with heat, though there are slight nuances. Thermal energy refers to the movement of molecules and atoms within a system. Heat, on the other hand, is the transfer or flow of thermal energy from one system to another. Both thermal energy and heat ...
This is because the batteries needed to power electric cars are expensive to manufacture. They require rare materials and have to hold a lot of energy to allow people to drive reasonable distances between charges. It also takes longer to recharge an electric car’s battery versus filling up ...
aThe results were also more suggestive than conclusive. 结果比决定性也暗示。[translate] a服务网络 Service network[translate] aWhat a motor does is to change electrical energy into mechanical driving power. 马达是改变电能到机械驾驶的力量。[translate]...