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Q 1.1 The History of The Atom

Total questions: 10

Worksheet time: 11mins

Name
Class
Date
1.

The fire had different uses many, many years ago. Which of the following are benefits that fire had back in time? Select all that apply.

a)

Protection against wild animals

b)

Food cooking

c)

Heat source on cold nights

d)

Pottery and metallurgy

2.

What connection did religious beliefs have on describing natural phenomena?

a)

Natural phenomena were controlled by demons, spirits, and gods.

b)

Spirits, demons, and gods could not influence natural phenomena.

c)

Pleasing the spirits, demons, and gods caused catastrophic natural disasters.

d)

Natural phenomena were disconnected from spiritual beings.

3.

Who thought all matter is made up of earth, wind, water, and fire, which determine matter’s properties and behavior?

a)

Anaxagoras

b)

Empedocles

c)

Thomson

d)

Dalton

4.

Rutherford experimented with a gold foil and a beam of alpha particles, which led him to propose the existence of the ___.

a)

electron

b)

neutron

c)

nucleus

d)

atom

5.

The modern atomic model, proposed initially by Bohr and then strengthened by Heisenberg and Schrödinger, is characterized by all the following, except ___.

a)

electrons moving at different distances from the nucleus

b)

the wavy nature of the orbitals

c)

the existence of an electron cloud

d)

the nucleus only containing protons

6.

When Thomson discovered the electron, using a cathode-ray tube, he compared the atom to which of the following?

a)
b)
c)
d)
7.

Democritus and Leucippus adopted a word to describe particles they defined as indivisible. What word did they use?

a)

corpuscles

b)

atomos

c)

ether

d)

orbitals

8.

If Anaxagoras were looking at a grain of sand, he would say its tiny seeds contained water, metal, cotton, paper, and even black holes! –but mostly ___.

a)

water

b)

fire

c)

sand

d)

air

9.

Contrary to the scientific method developed recently, a group flourished in Greece and spent its time thinking about the natural world without proving its ideas. They were known as ___.

a)

philosophers

b)

doctors

c)

scientists

d)

prehistoric thinkers

10.

Niels Bohr proposed his planetary model after analyzing Rutherford's and considering it was not a sustainable theory. He suggested that the ___ were orbiting the nucleus just like the planets orbit the sun.

a)

electrons

b)

nucleons

c)

neutrons

d)

protons