Atoms and Elements Review

Which of the following is a characteristic of durable scientific knowledge? (2.01)

• It remains unchanged over time.

• It is rarely subjected to examination.

• Several scientists' investigations support it.

• Similar investigations yield dissimilar results.

Tags

NGSS.HS-LS4-1

Which of the following provides evidence to support Rutherford's model of the atomic nucleus? (2.01)

• Gold foil experiment

• Plum pudding model

• Spectrum of colors emitted by gas

• Radiation produced when alpha particles hit beryllium

Which of the following observations indicates that atoms of all elements contain small, negatively charged particles? (2.01)

• Alpha particles are repelled by cathode rays of elements.

• Cathode rays are deflected towards a positively charged rod.

• A particular frequency of light is produced by a gas in an excited state.

• Certain areas of the atom called orbitals contain all the charged particles.

Tags

NGSS.HS-PS1-3

The table shows the charge on three unknown subatomic particles.

Which particle is most likely present in the space outside of the nucleus of the atom? (2.01)

• Only particle X

• Only particle Z

• Both particles X and Y

• Both particles Y and Z

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-5

The table shows the number of charged particles in an ion.

A negatively charged substance is brought near the ion. What will most likely happen and why? (2.01)

• The ion will repel the substance because it has more electrons than protons.

• The ion will repel the substance because it has more protons than electrons.

• The ion will attract the substance because it has more electrons than protons.

• The ion will attract the substance because it has more protons than electrons.

Tags

NGSS.HS-PS2-4

What is the lowest point of a wave called? (2.02)

• Amplitude

• Crest

• Frequency

• Trough

What is the highest point of a wave called? (2.02)

• Amplitude

• Crest

• Frequency

• Trough

Tags

NGSS.MS-PS4-1

Which of the following methods can be used to identify the suspected use of heat lamps in a house without entering the house? (2.02)

• Identify the lamps inside the house using x−ray machines.

• Detect the heat emitted by the lamps using infrared rays.

• Use special cameras to emit ultraviolet light that can detect the heat lamps.

• Capture the images of lamps inside the house using radars that send radio wave signals.

Tags

NGSS.HS-PS4-5

What term is used to describe the lowest energy level of a particle? (2.03)

• Photon

• Excited state

• Ground state

• Emission spectrum

An electron moved from a higher energy level to a lower energy level. What most likely happened during the transition? (2.03)

• A photon was released.

• A photon was absorbed.

• A fixed amount of energy was absorbed.

• A random amount of energy was released.

Tags

NGSS.HS-PS4-3