Mechanical Energy
Anything that is in motion has energy.Mechanical energy is the energy of moving parts. This form of energy is released when objects are moving. For example, gears like these cause the hands on a clock to move.
Sound is form of mechanical energy. Sound begins when matter vibrates, or moves back and forth quickly. To feel how sound produces mechanical energy, try this: Place your fingers lightly on your throat. Then hum or talk. Do you feel your vocal chords vibrate?
As these guitar strings vibrate, they cause particles in the air to vibrate. These vibrations transmit (move) sound through the air.
The school bus you ride in, a frog leaping through the air, and water dropping in a waterfall all have mechanical energy.What does each example have in common?
Mechanical Energy
Anything that is in motion has energy. Mechanical energy is the energy of moving parts. This form of energy is released when objects are moving. For example, gears like these cause the hands on a clock to move.
Sound is form of mechanical energy. Sound begins when matter vibrates, or moves back and forth quickly. To feel how sound produces mechanical energy, try this: Place your fingers lightly on your throat. Then hum or talk. Do you feel your vocal chords vibrate?
As these guitar strings vibrate, they cause particles in the air to vibrate. These vibrations transmit (move) sound through the air.
The school bus you ride in, a frog leaping through the air, and water dropping in a waterfall all have mechanical energy. What does each example have in common?
Chemical Energy
Chemical energy is found in many fuels like food, batteries, wood, coal, and gasoline. Chemical energy is the stored energy that bonds (holds) the atoms together. When these bonds are broken, chemical energy is released and the atoms are rearranged. Chemical energy causes fuels to change form. For example, the stored chemical energy in a match changes into fire.
Right now your body is using chemical energy. This energy is stored in the foods you eat. When you digest food, the bonds are broken between atoms, separating them. Chemical energy is released as your food changes into energy for your body to use and store.
Chemical Energy
Chemical energy is found in many fuels like food, batteries, wood, coal, and gasoline. Chemical energy is the stored energy that bonds (holds) the atoms together. When these bonds are broken, chemical energy is released and the atoms are rearranged. Chemical energy causes fuels to change form. For example, the stored chemical energy in a match changes into fire.
Right now your body is using chemical energy. This energy is stored in the foods you eat. When you digest food, the bonds are broken between atoms, separating them. Chemical energy is released as your food changes into energy for your body to use and store.
Electromagnetic Energy
The light that you see each day is a form of electromagnetic energy. Electromagnetic energy happens when electrons are moving between atoms. Power lines carry electromagnetic energy into your home in the form of electricity. Different types of light have differing amounts of electromagnetic energy. Electromagnetic energy is carried by sunlight, x-rays, radio waves, microwaves, and laser light.
Electromagnetic Energy
The light that you see each day is a form of electromagnetic energy. Electromagnetic energy happens when electrons are moving between atoms. Power lines carry electromagnetic energy into your home in the form of electricity. Different types of light have differing amounts of electromagnetic energy. Electromagnetic energy is carried by sunlight, x-rays, radio waves, microwaves, and laser light.
Thermal (Heat) Energy
When you rub your hands together, you can feel them becoming gradually warmer. The faster you rub your hands, the warmer they feel. Thermal energy is making your hands warmer.
All matter is made up of tiny particles called atoms that are constantly moving. This is true even if the object is still. When atoms heat up, they move faster and spread out, producing heat. Thermal energy is heat energy produced by the movement of atoms.
Thermal energy causes changes in the temperature of an object. It can also cause matter to change into another form (solid/liquid/gas). As heat increases, the atoms don’t just move in place anymore. They spread out because they become less dense. For example, as an ice cube warms, the atoms start moving around and spreading out, and as the ice melts.
Temperature is really measuring how fast atoms ______in matter.
Nuclear Energy
Nuclear energy is energy that is stored in particles at the core, or nucleus, of an atom. When the nucleus is split apart, very large amounts of heat energy and light energy are released. Nuclear energy is also released when two nuclei collide and become fused (joined) together. The sun’s energy comes from a nuclear reaction.
Nuclear Energy
Nuclear energy is energy that is stored in particles at the core, or nucleus, of an atom. When the nucleus is split apart, very large amounts of heat energy and light energy are released. Nuclear energy is also released when two nuclei collide and become fused (joined) together. The sun’s energy comes from a nuclear reaction.