Across
- 3. under the influence of gravity, movement in a fluid caused by less dense hotter particles rising upward while heavier cooler particles sink downward. Heat is transferred!
- 10. a form of energy associated with the atoms and molecules of an object.This energy is equal to the sum of the total potential and kinetic energies found in the small particles of an object.Can be measured by temperature
- 12. a characteristic of a substance that explains its ability to change into two or more different substances. EXAMPLES: Heat of Combustion (burning substance), Reactivity with Water (rust), pH and Electromotive Force.
- 13. a machine that converts mechanical energy into electrical energy.
- 17. type of machine that uses thermal energy to create mechanical energy that eventually.The mechanical energy is used to create electricity
- 18. a nuclear reaction where the nucleus splits and releases energy. This reaction occurs in nuclear power plants to produce steam that propels generators that produce electricity.
Down
- 1. a material (for example some metals) that allow an electrical current to flow through it with ease. Metal wires are good examples.
- 2. stored energy that as a result of its position or shape has the ability to perform work or create motion. This energy has the "potential" to perform work.
- 4. a form of potential energy associated with atoms. The energy is stored inside the nucleus. There are two types of reactions that cause this energy to be released.
- 5. the process of burning fuel to create thermal energy. Example of a type of chemical change.
- 6. type of machine that converts electrical energy into mechanical energy.
- 7. when a push or a pull acts on an object the force is said to preform work
- 8. a form of potential energy associated with the atoms or molecules of an object. This energy is released when the bonds between atoms and molecules are broken. Food or when materials burn are good examples.
- 9. measurement of hot or cold. Thermometer measures a substance's average kinetic energy
- 11. coal, oil and natural gas are examples. Accumulated ancient remains of plants and animals that were deposited millions of years ago. Humans burn fossil fuels directly and indirectly to generate energy.
- 12. energy that is transferred by direct contact.
- 14. the rate at which energy is transferred over a given period of time
- 15. of matter known as phases of matter: solid,liquid,gas and plasma
- 16. energy transferred from a warm object or substance to a cooler object or substance.
- 18. a nuclear reaction where the nuclei of atoms fuse or bond together. This reaction occurs on stars and our sun.