8th Grade Science E.O.Y. Vocabulary Quiz

What is the term for a subatomic particle with no charge?

• Neutron

• Proton

• Electron

• Atom

Answer explanation

The term for a subatomic particle with no charge is a Neutron, as it has a neutral charge and is found in the nucleus of an atom.

What is the term for the rate of change of velocity?

• Acceleration

• Speed

• Velocity

• Frequency

Answer explanation

The term for the rate of change of velocity is acceleration, which is the correct answer choice.

What is the subatomic particle with a positive charge?

• Proton

• Psychrometers

• Reactant

• Reactivity

Answer explanation

The subatomic particle with a positive charge is a Proton.

What instrument is used to measure wind speed?

• Anemometer

• Psychrometers

• Spectroscope

• Spectra

Answer explanation

An anemometer is used to measure wind speed, making it the correct choice among the options provided.

What is the term for a shorthand way to represent the elements in a compound?

• Chemical formula

• Element

• Coefficient

• Product

Answer explanation

The term for a shorthand way to represent the elements in a compound is called a chemical formula.

What is the term for the tendency of an object to resist a change in motion?

• Inertia

• Velocity

• Acceleration

• Speed

Answer explanation

Inertia is the term for the tendency of an object to resist a change in motion, making it the correct choice in this context.

What is the term for the central part of an atom?

• Nucleus

• Electron cloud

• Element

• Subatomic particle

Answer explanation

The central part of an atom is called the nucleus, which contains protons and neutrons. Electrons orbit around the nucleus in the electron cloud.

What is the term for the brightness of a star?

• Luminosity

• Magnitude

• Absolute magnitude

• Apparent magnitude

Answer explanation

The term for the brightness of a star is called luminosity.

What instrument is used to measure the moisture content in the air?

• Psychrometers

• Reactant

• Reactivity

• Rotational axis

Answer explanation

Psychrometers are instruments specifically designed to measure the moisture content in the air, making them the correct choice for this question.

What is the term for the state of remaining the same over time?

• Constancy

• Velocity

• Wavelength

• Magnitude

Answer explanation

Constancy is the term for the state of remaining the same over time, making it the correct choice in this context.