Atomic Structure and Forces

Atomic Structure and Forces

Assessment

Interactive Video

Physics

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial delves into atomic structure, explaining that all matter is composed of atoms, which consist of a nucleus surrounded by electrons. The nucleus contains protons and neutrons, which have similar mass, while electrons have a much smaller mass. Protons and electrons have equal but opposite charges, and neutrons are neutral. The video highlights that atoms are mostly empty space, with electrons orbiting the nucleus at a great distance. The nuclear force, a strong electrostatic force, holds the nucleus together.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the basic building blocks of all matter?

Molecules

Compounds

Atoms

Cells

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What particles make up the nucleus of an atom?

Electrons and protons

Protons and neutrons

Neutrons and electrons

Protons and electrons

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the mass of an electron compare to that of a proton?

Equal to a proton

Twice as much as a proton

1,800 times larger than a proton

1,800 times smaller than a proton

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the unit used to measure atomic mass?

Atomic mass unit (AMU)

Pound

Gram

Kilogram

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of a neutron?

Positive

Negative

Neutral

Variable

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of a proton?

Positive

Negative

Neutral

Variable

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of an electron?

Positive

Negative

Neutral

Variable

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