Grade 10 Physical Sciences Matter and Materials, Matter is composed of particles,

Question 1

What is matter?

Answer 1

Matter is anything that has mass and takes up space.

Question 2

True or False: All matter is composed of particles.

Answer 2

True

Question 3

Fill in the blank: The smallest unit of an element is called a _____ .

Answer 3

atom

Question 4

What are the three states of matter?

Answer 4

Solid, liquid, and gas.

Question 5

Which state of matter has a definite shape and volume?

Answer 5

Solid

Question 6

What is the primary difference between solids and liquids?

Answer 6

Solids have a fixed shape, while liquids take the shape of their container.

Question 7

What do we call a substance made of only one type of particle?

Answer 7

Pure substance

Question 8

Multiple choice: Which of the following is not a state of matter? A) Solid B) Liquid C) Gas D) Plasma E) Energy

Answer 8

E) Energy

Question 9

True or False: Gases have a definite volume.

Answer 9

False

Question 10

What is a mixture?

Answer 10

A mixture is a combination of two or more substances that are not chemically bonded.

Question 11

Fill in the blank: Atoms are made up of protons, neutrons, and _____ .

Answer 11

electrons

Question 12

What is the charge of a proton?

Answer 12

Positive

Question 13

What is the charge of an electron?

Answer 13

Negative

Question 14

True or False: Neutrons have no charge.

Answer 14

True

Question 15

What is the term for the process of a solid changing directly into a gas?

Answer 15

Sublimation

Question 16

Which particle is found in the nucleus of an atom?

Answer 16

Proton and neutron

Question 17

Fill in the blank: The _____ is the center of an atom.

Answer 17

nucleus

Question 18

What is the term for the energy required to change a substance from solid to liquid?

Answer 18

Heat of fusion

Question 19

Multiple choice: Which of the following describes a gas? A) Definite shape B) Definite volume C) Neither A nor B D) Both A and B

Answer 19

C) Neither A nor B

Question 20

What does the term ‘density’ refer to?

Answer 20

Density is the mass of a substance divided by its volume.

Question 21

True or False: The particles in a gas are closely packed together.

Answer 21

False

Question 22

What happens to the particles of a substance when it is heated?

Answer 22

They gain energy and move faster.

Question 23

Fill in the blank: The process of a liquid turning into a gas is called _____ .

Answer 23

evaporation

Question 24

What is the term for the change of state from gas to liquid?

Answer 24

Condensation

Question 25

Multiple choice: Which of the following has the highest energy? A) Solid B) Liquid C) Gas

Answer 25

C) Gas

Question 26

What is a solution?

Answer 26

A solution is a homogeneous mixture where one substance is dissolved in another.