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Coulomb's Law

Total questions: 8

Worksheet time: 4mins

Name
Class
Date
1.

Which statement accurately describes the electrostatic forces between charged particles according to Coulomb's Law?

a)

Like charges attract, and opposite charges repel.

b)

Like charges repel, and opposite charges attract.

c)

All charged particles attract each other regardless of charge.

d)

All charged particles repel each other regardless of charge.

2.

How does the magnitude of electrostatic force between two charged particles change with respect to their charges and the distance between them?

a)

Directly proportional to the product of their charges and directly proportional to the square of the distance.

b)

Directly proportional to the product of their charges and inversely proportional to the square of the distance.

c)

Inversely proportional to the product of their charges and directly proportional to the square of the distance.

d)

Inversely proportional to the product of their charges and inversely proportional to the square of the distance.

3.

Consider two atoms, Atom A and Atom B. Atom A has its outermost electron closer to the nucleus than Atom B. Based on Coulomb's Law, which atom would require less ionization energy to remove its outermost electron?

a)

Atom A, because the electron is closer to the nucleus, experiencing a stronger attractive force.

b)

Atom B, because the electron is farther from the nucleus, experiencing a weaker attractive force.

c)

Both atoms would require the same ionization energy, as it depends only on the charge of the nucleus.

d)

Neither atom, as ionization energy is unrelated to the distance of electrons from the nucleus.

4.

What phenomenon occurs when photons strike a metal surface, causing electrons to be ejected?

a)

Nuclear fusion

b)

Photoelectric effect

c)

Electrolysis

d)

Coulombic attraction

5.

What is the primary role of neutrons in an atomic nucleus?

a)

To determine the element's chemical properties.

b)

To stabilize the nucleus by counteracting proton-proton repulsion.

c)

To increase the atomic number of the element.

d)

To orbit the nucleus and participate in chemical bonding.

6.

When electrons are added to an atom, why do the first two electrons typically occupy an inner shell, while subsequent electrons fill outer shells?

a)

The inner shell has a larger capacity for electrons.

b)

Electrons in inner shells experience stronger attraction to the nucleus.

c)

Outer shells are always more stable than inner shells.

d)

This arrangement minimizes the overall mass of the atom.

7.

Which phenomenon describes the emission of electrons from a material when light shines on it?

a)

Nuclear fission

b)

Photoelectric effect

c)

Electron diffraction

d)

Quantum entanglement

8.

A Photoelectron Spectroscopy (PES) spectrum for Lithium shows two distinct peaks. One peak is at a low ionization energy, and the other is at a significantly higher ionization energy, with the latter being twice as intense. What does this data indicate about Lithium's electron configuration?

a)

Lithium has one electron in an inner shell and two electrons in an outer shell.

b)

Lithium has two electrons in an inner shell and one electron in an outer shell.

c)

Lithium has three electrons, all in the same energy level.

d)

Lithium has two isotopes, each with a different number of electrons.