In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Question: Jim is performing experiments in his lab. If he applies less heat to gas inside of a beaker, what happens to the gas particles? 
 Answer: move slower
If the gas is heated, the particles will move faster as they gain more energy.

Question: What would happen to the speed of Earth's orbit if our planet were to move closer to the Sun? 
 Answer: increased speed
The Earth travels faster in its elliptical orbit when it is closer to the Sun than when it is farther away.

Question: Theresa made a device that uses 25% of usable energy. Ryan made a device that uses 10% of usable energy. _____ made a device that is less efficient. 
 Answer: Ryan

The more efficient a device is, the greater the percentage of usable energy it produces.