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1.1 and 1.2
1.1 and 1.2 Energy TEST - Science
| Term | Definition |
|---|---|
| Acceleration | The rate at which velocity changes |
| Can you predict if a car will go over hills or not based on your view of the potential energy of the car? | YES! |
| chemical potential energy | Energy stored in chemical bonds like when you eat food your cells use, or when the burning wood of a fire gives off light and heat |
| Does it matter HOW I get the potential energy stored? | Objects have the same potential to move when they are at rest, no matter how they arrived at that point. A ball on a hill could be moved by hand, moved by a machine, or placed there in any way, it still has the same potential energy to transfer |
| elastic gravitational potential energy | like a rubber band! |
| examples of potential energy | gas in a can, lifted hammer, ball at top of hill |
| Force | A push or pull exerted on an object |
| gravitational potential energy | Potential energy that depends on the height of an object, like Burt sliding down the hill! |
| heat | when you TRANSFER energy from potential to kinetic energy, we measure this transfered energy by measure for THIS.... |
| Joule | the unit of measure for kinetic energy |
| kinetic energy | energy of motion; energy of doing work |
| Law of Conservation of Energy | the law that states that energy cannot be created or destroyed but can be changed from one form to another |
| Mass | the amount of matter in an object |
| measure | a tool used to find out about the energy in an object or its size |
| potential energy | stored energy, like a lifted hammer |
| releasing energy | like a bank, when you release energy you do not create or destroy it, you exchange it for other types of energy, as you would exchange money for items you buy |
| Speed | The distance an object travels per unit of time |
| storing energy | like a bank, when you store energy it has the potential to do more things |
| Temperature | A measure of the average kinetic energy of motion of the particles of a substance. Fast moving molecules = higher temps; slower molecules = colder temps |
| total energy | potential energy + kinetic energy |
| types of kinetic energy | Radiant, thermal, motion, sound, electrical; a rolling ball, for example is mechanical kinetic energy, things like fire, |
| work | Force exerted on an object that causes it to move |
Created by:
Fra5thGrade
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