8th Grade PS Unit 5: Energy

16 flashcards · Physics · by Samvid Konchada

1. The capacity for doing work. It may exist in (i.e.) potential kinetic, thermal, helectrical, chemical, nuclear, or other forms.

   Energy

2. Stored energy that depends upon the relative position of various parts of a system. i.e. stretched rubber band

   Potential Energy

3. Form of energy that an object or a particle has by reason of its motion. i.e. bus moving

   Kinetic Energy

4. Internal energy present in a system in a state of thermodynamic equilibrium by virtue of its temperature. i.e. sun's ray

   Thermal Energy

5. Sum of the kinetic energy, or energy of motion, and the potential energy, or energy stored in a system by reason of the position of its parts. i.e. hammer in motion

   Mechanical Energy

6. Energy stored in the bonds of chemical compounds. i.e. fossil fuels

   Chemical Energy

7. Energy generated through the conversion of other forms of energy, such as mechanical, thermal, or chemical energy. It is unrivaled for many uses, as for lighting, computer operation, motive power, and entertainment applications. Definition 2: A stream of moving particles or atoms that carry an electrical charge. i.e. electricity through a wire

   Electrical Energy

8. Energy that is released in significant amounts in processes that affect atomic nuclei, the dense cores of atoms. i.e. nuclear power plants

   Nuclear Energy

9. A form of energy that can be heard by living things i.e. sound from a person talking

   Sound Energy

10. Energy that is transferred by electromagnetic radiation, such as light, X-rays, gamma rays, and thermal radiation, which may be described in terms of either discrete packets of energy, called photons, or continuous electromagnetic waves. i.e. light from a light bulb

    Radiant Energy

11. Potential energy a massive object has in relation to another massive object due to gravity. i.e. book on table

    Gravitational Energy

12. Mechanical potential energy stored in the configuration of a material or physical system as it is subjected to elastic deformation by work performed upon it. i.e. a slingshot

    Elastic Energy

13. Different atoms of the same element (same amount of protons) with different amounts of neutrons i.e. Hydrogen-1 (1 proton, 0 neutrons) vs. Hydrogen-2 aka Deuterium (1 proton, 1 neutron)

    Isotopes

14. A nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei. i.e. nuclear reactors

    Fission

15. A nuclear reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles (neutrons or protons) i.e. sun

    Fusion

16. The amount of time it will take for one half of a radioactive substance to decay. i.e. uranium-328 has a half life of about 4.5 billion

    Half life