Question

ENERGY Exam Name: 1. law of conservation 2. electrons 3. convection 4. potential energy 5. absorption 6. refraction Vocabulary 1 StudentSavvy© 2017 Date: Directions: Match the vocabulary word with the correct definition. a.) the light energy that is transferred to the material b.) the movement within a fluid. The hotter material rises and the colder fluid sinks, creating a transfer of heat. c.) The total energy of an isolated system remains constant. Energy cannot be created or destroyed, it changes form. d.) An object that has the potential for doing work as a result of its position or configuration. e.) Light passes into another material with different density, also known as “bending”. f.) A subatomic particle with a negative elementary electric charge. Fill in the Blank 7. is the movement through substances in longitudinal waves. It is associated with the vibration of matter. 8. Energy that is generated by heat is called . 10. are two examples of chemical energy. 12. A has resistors arranged in a chain, so the circuit only has one path. and
Micah Street

C

F

D

A

E

B

ENERGY Exam Name: Thermal Energy Infographic 2 StudentSavvy© 2017 Date: Directions: Fill out the oxygen cycle infographic. Describe each stage of the cycle. Short Answer 14.) What is the difference between natural light and artificial light? 13.) 15.) Give an example of chemical energy being released.

Answer 1

Here are the completed answers:

Matching (write the letter for each number)
1. c
2. f
3. b
4. d
5. a
6. e

Fill in the blank
7. Sound (sound energy)
8. Thermal energy (heat energy)
10. Examples: food and batteries (also wood, gasoline, coal)
12. A series circuit

13. Oxygen cycle — stages and short descriptions
- Photosynthesis: Plants and algae use sunlight to convert CO2 and water into glucose and release O2 into the atmosphere.
- Respiration: Animals, plants, and microbes use O2 to break down food for energy, producing CO2 as a waste product.
- Decomposition: Decomposers (bacteria/fungi) break down dead organisms and organic matter, consuming O2 and releasing CO2.
- Combustion/oxidation: Burning of organic matter or fossil fuels consumes O2 and releases CO2 and other oxides.
- Exchange with oceans/atmosphere and rock weathering: Oxygen dissolves in oceans and participates in chemical reactions (weathering and formation of oxides), moving between reservoirs.

14. Difference between natural light and artificial light
- Natural light: produced by natural sources (mainly the Sun); broad-spectrum, fluctuates with time of day and weather.
- Artificial light: produced by human-made devices (incandescent bulbs, LEDs, fluorescent lamps); created by electric or chemical processes and can be designed to provide specific intensities or spectra.

15. Example of chemical energy being released
- Burning gasoline in a car engine: chemical energy stored in fuel is released as heat and light (and converted to mechanical energy).
(Other examples: food being metabolized in your body, a battery powering a flashlight.)