Science
mechanical energy
Mechanical Energy The mechanical energy of an object is the sum of the object's kinetic energy and potential energy.
energy transfer
This is an example of energy transfer. When two objects collide, each exerts a force on the other that can cause energy to pass from one to the other
Your body also stores the chemical energy from the food you eat (from plants or animals) so it can be used as kinetic mechanical energy when you need it for everything from scratching an itch to running a marathon. This entire process is an example of an energy system.
Your body also stores the chemical energy from the food you eat (from plants or animals) so it can be used as kinetic mechanical energy when you need it for everything from scratching an itch to running a marathon. This entire process is an example of an energy system.
a force applied to an object results in its movement over a ....
a force applied to an object results in its movement over a distance.
potential energy
an object may also have stored energy based on its relative position within a system or its condition, known as potential energy.
didgesting food
digesting food (chemical energy)
energy
energy as the ability to do work or to cause changes in matter.
illuminated by light
illuminated by light (electromagnetic energy) from the sun.
A ball that flies through the air has
mechanical energy because it has both kinetic energy and gravitational potential energy. An object's mechanical energy can be all potential energy, all kinetic energy, or a combination of potential and kinetic energy.
The ball and the waves have
mechanical energy.
noise
noise (sound energy)
nuclear energy
nuclear energy is the potential energy stored in the nucleus of an atom. Without nuclear energy from the sun, life would not exist on Earth.
work
work is defined as the transfer of energy to an object by a force that causes the object to move in the direction of that force.
As the marble rolls down the ramp, it gains kinetic energy. At the bottom, nearly all of the potential energy has been transformed into kinetic energy.
As the marble rolls down the ramp, it gains kinetic energy. At the bottom, nearly all of the potential energy has been transformed into kinetic energy.
chemical energy
Chemical energy is the potential energy stored in the chemical bonds of substances.
Consider a tennis racket as a simple system. The racket consists of a metal frame and strings. When a tennis player swings the racket, the player transfers kinetic energy to the racket . As the tennis ball applies a force to the strings on the racket, the strings stretch and for a moment the strings have increased their elastic energy. The strings rebound and the racket transfers kinetic energy back to the tennis ball.
Consider a tennis racket as a simple system. The racket consists of a metal frame and strings. When a tennis player swings the racket, the player transfers kinetic energy to the racket. As the tennis ball applies a force to the strings on the racket, the strings stretch and for a moment the strings have increased their elastic energy. The strings rebound and the racket transfers kinetic energy back to the tennis ball.
Consider a tree as an example of a system. Energy from the sun is one input. One output of this system is the chemical energy in the parts of the tree, which is stored as sugars and other carbohydrates.
Consider a tree as an example of a system. Energy from the sun is one input. One output of this system is the chemical energy in the parts of the tree, which is stored as sugars and other carbohydrates.
elastic energy
Elastic energy is the potential mechanical energy stored in an object when work is performed to change its shape.
electrical energy
Electrical energy is the kinetic energy of moving electric charges. The more electric charges that are moving, the more electrical energy is carried by the wire.
electromagnetic energy
Electromagnetic energy is the kinetic energy of electromagnetic waves, which include visible light, x-rays, and microwaves.
Energy flows through the process of photosynthesis.
Energy flows through the process of photosynthesis.
energy
Energy is the ability to do work, and work requires a transfer of energy. In fact, energy is transferred every time work is done
Potential energy can be transformed into
Potential energy can be transformed into kinetic energy and back again.
sound energy
Sound energy is kinetic energy caused by the vibration of particles in a medium, such as steel, water, or air.
The electronic devices we rely on every day work by transforming electrical energy into signals that produce electromagnetic, sound, and thermal energy. In portable devices, this electrical energy comes from chemical energy stored in the system's battery.
The electronic devices we rely on every day work by transforming electrical energy into signals that produce electromagnetic, sound, and thermal energy. In portable devices, this electrical energy comes from chemical energy stored in the system's battery.
gravotaional potential energy
The energy stored in an object due to its physical position and the force of gravity acting on it is called gravitational potential energy.
The energy stored in the spring is released as it unwinds, exerting a force on gears in the toy that cause it to move. The motion of the toy is the result of an initial input of energy from the user turning the key.
The energy stored in the spring is released as it unwinds, exerting a force on gears in the toy that cause it to move. The motion of the toy is the result of an initial input of energy from the user turning the key.
kinetic energy
The more massive the object or the faster it is traveling, the more energy it has. This energy of motion is called kinetic energy.
energy transormation
The two balls will also make a noise as they collide, indicating that sound energy has been produced. This is an example of an energy transformation, or the change of one form of energy into another.
thermal energy
Thermal Energy Thermal energy is the total kinetic energy of all the particles that make up an object.