Question

match the words in the first column to the best available answer in the second column.
raising a molecule to a higher energy level.
the continual movement of molecules that occurs when heat accelerates atoms.
creates the radio wave signals used in radar and microwave ovens.
the smallest particle; made up of one or more atoms.
uses a transmitter to emit radio waves called microwaves.
converts high voltage electricity into very short waves of energy.
energy that travels outward in straight lines.
current or field used to convey data from one place to another.
very short waves of electromagnetic energy.
flow of thermal energy through a substance.

1. radiation
2. magentron tubes
3. molecules
4. radar
5. magnetron
6. atomic motion
7. exciting
8. conduction
9. microwave energy
10. radio wave signal

Explanation:

• "Raising a molecule to a higher energy level" is defined as "exciting" in scientific terminology.
• "The continual movement of molecules that occurs when heat accelerates atoms" is known as "atomic motion".
• "Creates the radio wave signals used in radar and microwave ovens" - a magnetron is the device that does this.
• "The smallest particle; made up of one or more atoms" - a molecule fits this description.
• "Uses a transmitter to emit radio waves called microwaves" - radar uses such transmitters.
• "Converts high voltage electricity into very short waves of energy" - a magnetron (again, as in the context of microwave ovens etc., it converts electrical energy to microwave energy which are short - wave energy in this sense).
• "Energy that travels outward in straight lines" - radiation travels in straight lines (e.g., electromagnetic radiation).
• "Current or field used to convey data from one place to another" - a radio wave signal can be used for data transmission.
• "Very short waves of electromagnetic energy" - microwave energy is a type of electromagnetic energy with short wavelengths.
• "Flow of thermal energy through a substance" - conduction is the transfer of thermal energy through a substance.

Answer:

1. Radiation
2. Magnetron tubes (assuming this was a mis - write and should be magnetron)
3. Molecules
4. Radar
5. Magnetron
6. Atomic motion
7. Exciting
8. Conduction
9. Microwave energy
10. Radio wave signal