Grade 10 Weekly Quiz 1

Chemistry is the study of ___________

• Life

• Energy

• Matter

• the Universe

One nanometer is one ________ of a meter.

• billionth

• thousandth

• tenth

• hundredth

The idea of the "atom" was first proposed by ____________

• JJ Thomson

• Ernest Rutherford

• John Dalton

• Democritus

Which of the following best describes a Scientific Theory?

• An explanation based on evidence that has been proven 100% correct

• A proposed explanation that can be tested

• A statement of fact

• An explanation based on all the available evidence

JJ Thomson used cathode ray tubes to propose the concept of the electron. From this discovery he proposed this model of the atom.

• The Planetary Model

• The Plum Pudding Model

• The Quantum Model

• The Atomic Model

Which of the following is not correct about the nucleus of the atom.

• It contains all the negative charge of the atom

• It is very small compared to the entire atom

• It contains almost all the mass of the atom

• It was discovered using gold foil and alpha particles

Which number goes in the blank space?

• 6

• 11

• 12

• 5

Which number goes in the blank space?

• 16

• 32

• 14

• 18

Which numbers goes in the blank spaces?

• 20, 20

• 20, 18

• 20, 22

• 22, 20

Density is an example of a ___________ property, it does not change with the amount of material.

• Extensive

• Intensive

• Physical

• Chemical