Question

physics & chemistry worksheet: light and the atom
name:
date:
period:
part 1: vocabulary matching
match the term in the left column with the correct definition in the right column by writing the corresponding letter in the blank space.

term	letter	definition
2. atomic emission spectrum		b. the height of a wave from the origin to the crest.
3. electromagnetic radiation		c. energy waves that travel at the speed of light (c).
4. energy levels		d. the lowest energy state of an atom.
5. frequency		e. a discrete \packet\ or particle of light energy.
6. ground state		f. the number of wave cycles to pass a point per second.
7. hertz (hz)		g. the distance between two consecutive crests of a wave.

Explanation:

Each term is matched to its standard scientific definition:

1. Amplitude refers to the height of a wave from its origin to the crest.
2. Atomic Emission Spectrum is the specific light frequencies an element emits.
3. Electromagnetic Radiation describes energy waves moving at light speed.
4. Energy Levels (note: the matching definition is missing from the list, but correcting based on standard terms, this would correspond to discrete energy states of an atom; however, using the provided options, we proceed with the correct matches for the available pairs)
5. Frequency is the number of wave cycles per second.
6. Ground State is an atom's lowest energy state.
7. Hertz (Hz) is the unit for frequency, which aligns with the definition of wave cycles per second.

Answer:

1. Amplitude - B. The height of a wave from the origin to the crest.
2. Atomic Emission Spectrum - A. The specific frequencies of light emitted by an element.
3. Electromagnetic Radiation - C. Energy waves that travel at the speed of light (c).
4. Energy Levels - (No matching definition provided in the given options)
5. Frequency - F. The number of wave cycles to pass a point per second.
6. Ground State - D. The lowest energy state of an atom.
7. Hertz (Hz) - F. The number of wave cycles to pass a point per second.

Note: There is a missing definition for Energy Levels in the provided list, and Hertz shares the definition of frequency as it is the unit of frequency.