Introduction to Energy
Energy is ____.
What is...the ability to cause motion and change, or to do work?
Mechanical energy includes these two types of energy can be used to do work.
What is...kinetic and potential energy?
Thermal energy is ____.
What is...The energy created when a rise in temperature causes atoms and molecules to move faster and collide with each other?
A renewable resource is _____.
What is...a natural resource of source of energy that is not depleted by use?
True or false. Some waves require particles to transport them. In these cases, particles travel with the wave.
What is...false?
For example, ocean waves may appear to be moving particles of water toward you, but in fact, the water is only moving up and down.
Kinetic Energy is _____.
What is...the energy of an object in motion?
Gravitational energy is _____.
What is...The energy stored in an object due to its position or height above Earth’s surface.
A substance or material that allows energy to flow through it is a ____.
What is a...conductor?
The effort to reduce energy consumption by using less of an energy resource or service, and transitioning to clean, renewable energy is called _____.
What is...energy conservation?
What is...a pattern of motion that transfers energy (not matter)?
Potential Energy is ______.
What is...The energy stored inside a nonmoving object?
Chemical energy is _____.
What is....The potential energy stored within the bonds between atoms and molecules (holds them together).
Sources of chemical energy include natural gas, gasoline, coal, batteries, and even the food we eat!
The transfer of heat caused by the motion of a fluid, such as a liquid or a gas, is called _____.
What is...convection?
What is...False?
Wind energy is a renewable source of energy. Wind can be used to generate mechanical power or electricity, by converting kinetic energy in the wind into mechanical power.
A wave's height is known as _____.
What is...amplitude?
The difference between energy and matter.
What is...Matter has measurable mass. Energy does not.
Energy is a PROPERTY of matter (it is something that matter HAS). The same amount of matter can have different amounts of energy. This is why we have different states of matter.
Electrical energy is ______.
What is...the energy that comes from tiny charged particles (electrons or protons).
Conduction is ______.
What is...the transfer of thermal energy (heat) between objects in contact with each other?
Photovoltaic cells are used to generate electricity from this kind of energy to produce power.
What is...solar energy?
The distance between two wave peaks is known as the _____.
What is...wavelength?
The shorter wavelength, the higher the frequency of the wave, and the more energy it contains.
The Law of Conservation of Energy states ______.
What is...energy can neither be created nor destroyed, only transformed?
Nuclear energy is ______.
What is...The potential energy found inside the nucleus (core) of atoms.
Nuclear energy can be released through fission or fusion reactions.
The transfer of heat between objects that are not in contact with each other is called _____.
What is...radiation?
This type of energy is derived from organic materials.
What is...bioenergy?
Bioenergy is derived from biomass or biofuels (e.g. recently living animal or plant byproducts)
The electromagnetic spectrum is made up of all existing forms of _________ (radiation).
What is...light?
The EM spectrum ranges from radio waves, which have the longest wavelength (lowest frequency, less energy) to gamma rays, which have the shortest wavelength (highest frequency, more energy).