Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 5
8th Grade, Energy and Energy Resources
| Question | Answer |
|---|---|
| what is kinetic energy? | the energy of an object because it is moving |
| what is potential energy? | stored energy due to an object's location or condition |
| What happens to the kinetic energy of an object as it's speed increases? | the kinetic energy increases |
| What does kinetic energy depend on aside from the speed of an object? | the mass of the object |
| If two objects are moving the same speed, which one has more kinetic energy? | the one with more mass |
| What specific kind of potential energy is present when an object is raised off the ground? | gravitational potential energy |
| How much kinetic energy does an object have if it has zero speed? | zero KE |
| What two factors does the gravitational potential energy of an object depend on? | the mass of the object and it's height above the ground |
| Energy that is carried by an electric current. | electric energy |
| The ability to cause change. | energy |
| Energy that is due to motion. | kinetic energy |
| The total energy of an object or group of objects due to large-scale motions and interactions. | mechanical energy |
| The energy that is stored in the nucleus of an atom. | nuclear energy |
| The stored energy due to interactions between objects or particles. | potential energy |
| Energy that is carried by electromagnetic waves. | radiant energy |
| Energy that is carried by sound. | sound energy |
| The sum of kinetic and potential energy of particles in matter due to their random motion. | thermal energy |
| The energy transfer to an object by a force, making the object move in the direction of the force. | work |
| force that resists the motion of two surfaces that are touching | friction |
| energy can be transformed from one form into another or transferred from one region to another, but energy cannot be created or destroyed | law of conservation of energy (LOCOE) |
| transmitted by electromagnetic waves | radiant |
| dug up | fossil |
| nonrenewable energy resource made of the remains of ancient organisms and is burned as an energy source | fossil fuel |
| energy resource that cannot be used up | inexhaustible energy resource |
| energy resources that is used faster than it is replaced | nonrenewable energy resource |
| positively charge centers of atoms | nuclei |
| energy resource that is replaced as fast as, or faster than it is used | renewable energy resource |
| What kind of potential energy is stored when an spring is compressed | elastic potential energy |
| Elastic potential energy can be stored by compressing or ___ an object. | stretching |
| What type of potential energy is stored in food between the bonds of the atoms that make up the food? | chemical potential energy |
| How is chemical energy from food and other substances released? | through chemical reactions |
| What is sometimes described as "the ability to do work?" | energy |
| How much gravitational potential energy does an object have if it is resting on the ground? | zero GPE |
| What happens to the gravitational potential energy of an object if you increase it's height above the ground? | the GPE increases |
| What is the SI unit of measure for energy? | the joule |
| What form of energy is sometimes defined as the sum of large-scale kinetic and potential energies of an object or group of objects? | mechanical energy |
| How do objects produce sound? | by vibrating |
| What kind of wave can travel in a vacuum? (microwaves, for example) | electromagnetic wave |
| A microwave oven changes electrical energy to what? | radiant energy |
| What are the changes from electrical energy to radiant energy to thermal energy? | energy transformations |
| When you throw a ball upward, the ball has its greatest speed and most ______ energy when it first leaves your hand. | kinetic |
| As a ball reaches its highest point, the ball gains its greatest ______ energy. | potential |
| According to _______ "energy can be transformed from one form into another or transferred for one region to another, but energy cannot be created or destroyed." | the law of conservation of energy |
| The force that resists the motion of one surface over another. | friction |
| Energy used for cooking and heating. | thermal |
| Gas stoves and furnaces change ______ energy form natural gas into thermal energy. | chemical |
| Plants transform _____ energy from the Sun into chemical energy stored in food. | radiant |
| Many devices you use every day are powered by _____ energy from electrical power plants. | electrical |
| Battery-powered devices change _______ energy into electrical energy for power. | chemical |
| Cars transform most of the chemical energy in gasoline into what? | waste energy |
| Most of the energy that we use every day came from where? | the sun |
| Energy used by people in their daily lives is produced by? | electrical energy plants |
| The three main sources of energy used in electrical power plants? | burning fuels, nuclear, hydroelectric |
| What is an energy source that is used faster than it is replaced or it is in limited amounts. | nonrenewable energy resource |
| What are the remains of an organism that can be burned as an energy source? | fossil fuels |
| _____ and natural gas form from microscopic marine organisms whose remains are subject to extreme temperature and pressure for millions of years. | petroleum |
| What forms on land when remains of plants come under strong pressure? | coal |
| Burning natural gas produces less _______ than burning fossil fuels. | pollution |
| People can transform ______ energy from uranium nuclei into thermal energy. | nuclear |
| Nuclear power plants produce wastes that are _______ and can cause great damage to living things. | radioactive |
| What is an energy resource that is replaced faster or as fast than it is used? | renewable energy resource |
| _____ is radiant energy from the sun. | solar energy |
| Solar cells convert solar energy into _____ energy. | electrical |
| What is thermal energy produced inside the earth called? | geothermal energy |
| What are materials from plants and animals that people burn called? | biomass |
| What is the most common bio-fuel used in cars? | ethanol |
| About 86% of the energy used in the United States comes from ______, a nonrenewable resource. | fossilll fuels |
| _______ energy is one way to make our natural resources last longer. | conserving |
| How do the kinetic energies of a large truck and a small car parked side-by-side compare? | They both have zero KE. |
| How do the gravitational potential energies of a large truck and a small car parked side-by-side compare? | They both have zero Gravitational PE. |
| How do the gravitational potential energies of a large truck and a small car teetering on the edge of the same cliff compare? | The truck has more gravitational PE because of it's larger weight (mass). |
Created by:
aubiefan
Popular Physical Science sets