dis is fa connexus Thermal Energy Review fa science for 8th grade
1. its a cruve goin up
2. PE on top when KE is at bottom
3. kinetic energy
4. Object 2
5. the object's height from the ground
6. The kinetic energy is less than potential energy.
7. The roller coaster’s kinetic and potential energy change from location to the next, but its total energy remains the same.
8. It remains the same
9. kinetic → potential → kinetic
10. potential energy at the top of the stairs; kinetic energy as she walks down
11. Energy from the wind pushes on the wheel causing the pinwheel to move.
12. light - turns on lamp , heat - makes toast, sound - listens to the radio, electrical - plugs in coffee pot, mechanical - rides her bike
13. light energy → electrical energy → heat energy
14. The unavailable energy is given off as heat
15. electrical energy converts to sound energy
16. Heat will flow from the block to the water until both substances have a temperature between 20 degrees Celsius and 300 degrees Celcius.
17. The red water is warmer and is less dense.
18.an investigation of radiation using electromagnetic waves
19. Hot air is transferred through density differences when hot air rises and cool air sinks.
20. High thermal conductivity
I just took the test and got a 100% (9/12/23)