wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Confirmations & Flaws

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Whose idea did John Dalton support? What was the idea?

a)

J.J. Thomson: idea that electrons made up atoms

b)

Erwin Schrodinger: idea that electrons move in waves

c)

Werner Heisenberg: idea of the Uncertainty Principle

d)

Democritus: idea that everything is made of atoms

2.

Who changed Rutherford's atomic model?

a)

Niels Bohr

b)

J.J. Thomson

c)

Robert Millikan

d)

James Maxwell

3.

Which scientist proved Einstein's theory about the Photoelectric Effect?

a)

Louis de Broglie

b)

Ernest Rutherford

c)

Robert Millikan

d)

William Crookes

4.

Who paved the way for the discovery of Quantum Mechanics? Who discovered Quantum Mechanics?

a)

William Crookes; Werner Heisenberg

b)

James Maxwell; Werner Heisenberg

c)

Erwin Schrodinger; Louis de Broglie

d)

Erwin Schrodinger; James Maxwell

5.

Who was one scientist who used Crooke's Tube?

a)

James Maxwell

b)

Niels Bohr

c)

J.J. Thomson

d)

Ernest Rutherford

6.

Rutherford proved Thomson's idea wrong

a)

TRUE

b)

FALSE

7.

Disagreeing with Bohr, who said that electrons move in waves around the nucleus?

a)

John Dalton

b)

Democritus

c)

J.J. Thomson

d)

Erwin Schrodinger

8.

Select the scientists who didn't agree with Bohr's idea that electrons move in fixed paths

a)

John Dalton

b)

Werner Heisenberg

c)

Erwin Schrodinger

d)

Robert Millikan

e)

Louis de Broglie

9.

Who came up with the initial idea of an atom?

a)

Democritus

b)

J.J. Thomson

c)

James Maxwell

d)

Robert Millikan

10.

Who stated that electrons only have certain possible wavelengths, frequencies, and energies?

a)

Erwin Schrodinger

b)

Louis de Broglie

c)

James Maxwell

d)

Democritus