Question

What are 3 ways energy can be transferred from one object to another?
Answer:
Describe how heat travels in terms of temperature differences.
Answer:
If you wanted to give initial spring energy to an object, what would you have to do to it?
Answer:

Answer 1

1) Conduction, convection and radiation.
- Conduction: energy transferred by direct contact between particles (e.g., a metal spoon heating in hot soup).
- Convection: energy carried by bulk motion of a fluid (liquid or gas) (e.g., warm air rising).
- Radiation: energy transferred by electromagnetic waves (e.g., sunlight warming your skin).

2) Heat flows spontaneously from higher temperature regions to lower temperature ones until thermal equilibrium is reached. The larger the temperature difference (and the better the conductor), the faster the heat transfer; mathematically heat flow is proportional to the temperature gradient.

3) You must do work on the spring—that is, displace it from its equilibrium position (compress or stretch it) while it is attached to the object. That stores elastic potential energy in the spring (U = 1/2 k x^2); when released, that stored energy can be transferred to the object (usually as kinetic energy).