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Science Ch 7 L1/2
What are forms of Energy?
| Question | Answer |
|---|---|
| Energy is required whenever the _____________,____________, or ________________ of something changes. | position (location), chemical structure, or look |
| Energy cannot be ____________or ______________. | made or destroyed |
| Energy is____________________ from form to form. | transferred |
| Energy moves from one___________________________ | object to another object. |
| electrical energy is caused by __________________________ | movement of electrically charged particles |
| electrical energy flows through devices to_______________ | power them |
| light energy travels through _____________ | waves |
| light energy can move through _________________ | empty space |
| Some light energy comes from the _________ | sun |
| sound energy is the energy of _______________ in air, water, or other matter | vibrations |
| thermal energy is due to randomly _______________ that make up matter | moving particles |
| thermal energy flow is felt as_________ | heat |
| The faster particles move, the ________ thermal energy is produced | more |
| potential energy is energy that is ____________ in an object | stored |
| When an object is in motion, its potential energy is _____________ as other forms of energy | released |
| Potential energy is released as other forms such as ____________,___________________, or _______________ | sound, heat, or motion |
| kinetic energy is the energy of | motion |
| A moving swing or a hurricane both have_____________ energy | kinetic |
| All moving things have ... | kinetic energy. |
| The amount of kinetic energy depends on the _________ and __________ of the object. | speed and mass |
| Gravitational, chemical, and elastic are all forms of ____________Energy | Potential |
| A ____________ object has gravitational potential energy | raised |
| The HIGHER or HEAVIER an object is, the more _________ _______________ __________ it has. | gravitational potential energy |
| chemical is stored in the _____________ that hold particles together | connections |
| The human body digests food and the chemical energy turns into other forms of energy used to ________,__________,and ______ | move, talk, and live |
| a stretched rubber band or a compressed spring have ________ _________ _________ | elastic potential energy |
| Elastic potential energy can change into ________ energy and _________ energy | sound/kinetic |
| A Pendulum in a Clock: When a pendulum is at its highest position, it has the _________________. | greatest potential energy |
| A Pendulum in a Clock: As the pendulum starts to swing down, the potential energy changes to __________ energy. | kinetic |
| A Pendulum in a Clock: At its lowest position, the pendulum has the __________ kinetic energy. | greatest |
| A Pendulum in a Clock: As the pendulum swings back up, the kinetic energy decreases and the potential energy___________. | increases |
| Conduction is the transfer of | heat that occurs when one thing touches another. |
| Thermal energy flows from something | warm to something cool. |
| Heat is the transfer of ______________ between matter of different temperatures. | thermal energy |
| A heat source is anything that gives off | energy that particles of matter can take in. |
| Convection is the transfer of | thermal energy as matter moves (as a gas or a liquid moves from place to place). |
| In convection, particles in warm air or liquid ______________________, while cooler air enters in to take the place of the warmer upward air or liquid | move faster and travel upward |
| Radiation or radiant energy is energy that is sent out in | waves. |
| Radiant energy (radiation) is converted to thermal energy when it touches the matter of a | person's body. |
| Radiation can travel through | matter and through empty space. |
| Fossil Fuels come from the remains of | organisms that lived millions of years ago |
| Coal, natural gas, and oil are all fossil fuels. When burned, fossil fuels produce | useful heat. |
| Objects that are black absorb all the colors of visible light. When the light is absorbed, it becomes | a form of heat. |
Created by:
tbrogs5
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