click below
click below
Normal Size Small Size show me how
Heat_Energy Review
Review of the concepts covered during the energy unit.
Question | Answer |
---|---|
Do all objects/substances heat up at the same rate? | No - each has it's own specific heat |
What is kinetic energy? | Energy in motion |
Does hot move to cold or cold moves to hot? | hot moves to cold |
Energy exchange between objects that are touching. | Conduction |
Convection is the exchange of energy through... | Air or water currents |
Energy that is exchanged through electromagnetic waves is called. | Radiation |
The point that matter is so cold its molecules don't move | Absolute Zero |
Materials that energy moves through very easily. | Conductors |
Materials that do not transfer energy easily. | Insulators |
What materials are examples of conductors? | Copper, Zinc, Steel |
Energy cannot be created or destroyed. | Law of conservation of Energy |
98.6 | Temperature of Human Body |
Molecules moving very quickly | High Energy |
Molecules moving very slowly | Low Energy |
Molecules are packed very tightly in this type of matter. | Solid |
Materials that are good insulators include: | Styrofoam, Newspaper, Rubber |
To stop convection, you would want to wrap your cooler in: | Plastic Wrap |
To stop conduction you could wrap your cooler in: | Fiberglass insulation |
Matter with molecules that are spread farther apart is usually in these forms. | Liquid or Gas |
What color will absorb and hold the most heat? | Black |
Stored energy, or energy at rest is called. | Potential Energy |
Potential energy is food is measured by: | Calories |
This type of ingredient in food burns long and slow and has lots of calories. | Fats |