Energy based technology appliances - Basic Technology Flashcards
What is energy?
Energy is the ability to do work.
What are some forms of energy?
Chemical energy,
Mechanical energy, Nuclear energy, Gravitational energy,
Kinetic energy,
Radiant energy,
Thermal energy,
Motion energy,
Sound energy,
Electrical energy, etc
What is chemical energy
Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. For example, chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car’s engine.
What is mechanical energy?
Mechanical energy is energy stored in objects by tension. Compressed springs and stretched rubber bands are examples of stored mechanical energy.
What is nuclear energy?
Nuclear energy is energy stored in the nucleus of an atom—the energy that holds the nucleus together. Large amounts of energy can be released when the nuclei are combined or split apart.
What is gravitational energy?
Gravitational energy is energy stored in an object’s height. The higher and heavier the object, the more gravitational energy is stored. When a person rides a bicycle down a steep hill and picks up speed, the gravitational energy is converting to motion energy. Hydropower is another example of gravitational energy, where gravity forces water down through a hydroelectric turbine to produce electricity.
What is kinetic energy?
Kinetic energy
Kinetic energy is the motion of waves, electrons, atoms, molecules, substances, and objects.
What is radiant energy?
Radiant energy is electromagnetic energy that travels in transverse waves. Radiant energy includes visible light, x-rays, gamma rays, and radio waves. Light is one type of radiant energy. Sunshine is radiant energy, which provides the fuel and warmth that make life on earth possible.
What is thermal energy?
Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth.
What is motion energy?
Motion energy is energy stored in moving objects. The faster an object moves, the more energy is stored. It takes energy to get an object moving, and energy is released when an object slows down. Wind is an example of motion energy. A dramatic example of motion energy is a car crash—a car comes to a total stop and releases all of its motion energy at once in an uncontrolled instant.
What is sound energy?
Sound is energy moving through substances in longitudinal (compression/rarefaction) waves. Sound is produced when a force causes an object or substance to vibrate. The energy is transferred through the substance in a wave. Typically, the energy in sound is smaller than in other forms of energy.
What is electrical energy?
Electrical energy is delivered by tiny, charged particles called electrons, that typically move through a wire. Lightning is an example of electrical energy in nature.
What is a motor?
A motor is a machine, especially one powered by electricity that converts it to mechanical energy.
What is a generator
A generator is a machine, especially one powered by mechanical energy changing it electrical energy.
What are parts of a motor?
The frame, the amateur, the terminal box, the shaft, the pole and its windings, and the end shield.
