Physical Properties of Matter

Question 1

True or False.

The arrangement of atoms determines the properties of different types of matter.

Answer 1

True

Question 2

True or False.
When substances mix together and form mixtures, the properties of the substances that make up the mixtures are not present anymore.

Answer 2

False

Question 3

Define physical property.

Answer 3

A physical property is a characteristic of matter that you can observe or measure without changing the identity of the matter.

Question 4

How do aluminum, water, and air differ?

Answer 4

Aluminum is an element, water is a compound, and air is a mixture.

Question 5

What are the states of matter?

Answer 5

solids, liquids, and gas

Question 6

True or False.

The state of matter is a physical property of matter.

Answer 6

True.

Question 7

What makes some matter a solid and other matter a liquid, or a gas?

Answer 7

It depends on how close the particles in the matter are to one another and how fast they move.

Question 8

Which state of matter flows, keeps the same volume, and takes the shape of its container?

Answer 8

Liquid. It is because the particles that make up a liquid have more energy and thus more motion than the particles in a solid. Each particle still touches the particles around it, but the particles slide past each other.

Question 9

What are properties that are size-dependent?

Answer 9

mass, conductivity, volume

Question 10

What are properties that are size-independent?

Answer 10

boiling/melting points, state of matter, density, solubility, magnetism

Question 11

Why is mass a size-dependent property of a given substance?

Answer 11

It is because its value depends on the size of a sample.

Question 12

What is the difference between mass and weight? Give an example.

Answer 12

Mass is an amount of matter in something while weight is the pull of gravity on that matter. Weight changes with location, but mass doesn’t. If a person was on the moon, the person would have the same mass that it has one earth but the weight would be less on the moon because its gravity pull is less compared to earth.

Question 13

What is volume?

Answer 13

Volume is the amount of space something takes up.

Question 14

What is the most common unit of measurement for volume?

Answer 14

milliliter (mL)

Question 15

What is the degree of temperature for melting point?

Answer 15

0 degrees

Question 16

What is the degree of temperature for boiling point?

Answer 16

The boiling point of water is 100 degrees at sea level.

Question 17

True or False.

The temperature does depend on how much water is in the container.

Answer 17

False.

Question 18

What is density?

Answer 18

Density is the mass per unit volume of a substance. It is the measure of how compact the mass in a substance or object is.

Question 19

Formula for density?

Answer 19

d= mass/volume

Question 20

A sample of wood has a mass of 12g and a volume of 16mL. What is the density of the wood?

Answer 20

0.75 g/mL

Question 21

What are the 2 types of conductivity?

Answer 21

Electrical conductivity and thermal conductivity

Question 22

Define solubility.

Answer 22

Solubility is the ability of one substance to dissolve in another.

Question 23

Define conductivity.

Answer 23

Conductivity is the ability of matter to conduct, or carry along, electricity or heat.

Question 24

How do you use volume to separate mixtures?

Answer 24

Volume could be used to separate mixtures whose parts can be separated by filtration.

Question 25

How do you use density to separate a mixture?

Answer 25

Objects with greater density sink in objects with less density.

Question 26

True or False.

Substances that make up mixtures are not held together by chemical bonds.

Answer 26

True.

Question 27

True or False.

When substances form a mixture, the properties of the individual substances do change.

Answer 27

False.

Question 28

Define the term “bond” in science.

Answer 28

Bond is a force between atoms or groups of atoms.

Question 29

True or False.

Physical properties cannot be used to separate a compound into the elements it contains.

Answer 29

True.

Question 30

Which chemical property is NOT commonly used to separate mixtures?
A. Magnetism
B. Conductivity
C. Density
D. Solubility

Answer 30

Conductivity