Types of Energy
Forms of Energy
Energy Resources and Conservation
Temperature and Heat
Energy Transfer
Heating and Cooling Systems and
Combustion Engines
Combustion Engines
100
Energy is defined as ___________
the ability to do work or cause change.
100
Mechanical energy is the energy of movement. It is the sum of ___________ and _____________.
potential and kinetic energy.
100
Give 3 examples of renewable energy sources
Renewable energy resources include wind, sunlight, moving water, biomass, and geothermal energy.
100
Temperature is the ___________ kinetic energy of particles of matter.
(average or total?)
average
100
the transfer of thermal energy between particles of matter that are touching is called
conduction
100
A warm-air heating system burns fuel in a ___________ to produce thermal energy. The thermal energy is used to heat air, which is forced through a system of ducts and registers.
furnace
200
The energy of moving matter is called
kinetic energy
200
Energy that is stored in the bonds between the atoms of compounds is
chemical energy
200
Give 2 examples of nonrewable energy sources.
Nonrenewable energy resources include fossil fuels such as oil, natural gas and coal, and uranium.
(other answers will be accepted if accurate!)
200
The movement of particles is called _______ energy
thermal
200
the transfer of thermal energy by particles moving through a fluid is called
convection
200
A _________controls a home heating system. It monitors the home’s temperature and triggers the boiler or furnace to turn on or off to keep the temperature at a set point.
thermostat
300
The energy of position relative to other objects is called
potential energy
300
Energy of moving electrons is_________ energy
electrical energy
300
Give 2 examples of ways to conserve energy at home.
- turn off lights and unplug appliances and other electrical devices when not in use.
- use energy-efficient light bulbs and appliances.
- turn the thermostat down in winter and up in summer.
- (Other answers will be accepted if accurate!)
300
Thermal energy always moves from _________ to _____ substances until both substances have the same temperature.
(warmer to cooler, or cooler to warmer?)
warmer to cooler
300
the transfer of thermal energy by waves that can travel through air or even through empty space is called
radiation
300
A ____________is a substance with a low boiling point that changes between liquid and gaseous states as it passes through a refrigerator.
refrigerant
400
Gravitational potential energy is due to the position of an object above Earth’s surface. The formula for GPE is ____
400
The form of mechanical energy that starts with a vibration in matter is _______________.
sound energy
400
Most of the energy used in the world today is from what source?
the burning of fossil fuels
400
the amount of heat energy necessary to raise one mass unit of a substance by one temperature unit is called
Specific heat
400
Give two examples of materials that are good thermal conductors
Metals like iron, aluminum, gold, copper, and silver are good thermal conductors. Carbon nanotubes are also good conductors.
(other answers will be accepted if accurate)
400
In an internal combustion engine, a mixture of fuel and air is burned in a closed cylinder, forcing a _______ to move up and down.
piston
500
What is the SI unit for energy?
The SI unit for energy and work is the joule (J), or Newton meter (N ∙ m or Nm).
500
Energy stored in protons and neutrons because of the strong forces that hold them together is ___________.
nuclear energy
500
Nuclear energy is produced by splitting the nuclei of what radioactive element?
uranium
500
The SI scale for measuring temperature is the
Kelvin scale
500
Give two examples of materials that are good thermal insulators
Glass, wood, cork, styrofoam, fiberglass, wool and cellulose are good thermal insulators
(other answers will be accepted if accurate)
500
What kind of combustion engine is found in a car?
Cars and most other motor vehicles have internal combustion engines.
