1-6 Chapter review

Front

What is the plum pudding model of the atom?

Back

The plum pudding model is an early 20th-century model of the atom proposed by J.J. Thomson, which suggests that the atom is a sphere of positive charge with negatively charged electrons embedded within it, resembling a 'plum pudding'.

Front

Who proposed that everything is made of tiny indivisible particles?

Back

Democritus proposed that everything is made of tiny indivisible particles called atoms.

Front

What is an exception to the Law of Conservation of Energy?

Back

An exception to the Law of Conservation of Energy is described by Einstein's equation E=mc², which states that energy can be created from mass.

Front

What is the correct order of the visible spectrum from longest to shortest wavelength?

Back

The correct order of the visible spectrum from longest to shortest wavelength is red, orange, yellow, green, blue, purple.

Front

What is the sequence of the electromagnetic spectrum from longest wavelength to shortest?

Back

The sequence of the electromagnetic spectrum from longest wavelength to shortest is radio, microwave, infrared, visible, ultraviolet (UV), X-ray, gamma ray.

Front

What is the significance of the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

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NGSS.HS-PS1-5

Front

What is the definition of an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element, consisting of a nucleus surrounded by electrons.

Tags

NGSS.MS-PS1-1

Front

What are the main components of an atom?

Back

The main components of an atom are protons, neutrons, and electrons.

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NGSS.MS-PS1-1

Front

What is the role of electrons in an atom?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom and are involved in chemical bonding.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which varies in wavelength and frequency.