Week 1

Question 1

Chemistry

Answer 1

Study of the composition and structure of materials and the changes they undergo

Question 2

Ways of classifying matter

Answer 2

Physical state
Composition

Question 3

Physical state classification

Answer 3

Solid (fixed shape)
Liquid (lacks shape but fixed volume)
Gas (lacks shape and volume)

Question 4

Composition classification

Answer 4

Element (atomic or molecular)
Compound
Mixture vs pure substance

Question 5

Law of constant composition

Answer 5

Compounds are made up of elements in definite proportions

Question 6

Heterogeneous mixture

Answer 6

Mixture in which the composition is not uniform throughout

Question 7

Homogeneous mixture

Answer 7

Mixture in which the composition is uniform throughout (must be the same state)

Question 8

Types of properties

Answer 8

Physical or Chemical
Intensive or Extensive

Question 9

Physical properties

Answer 9

Observable properties that can be seen without changing the identity of the substance

Question 10

Chemical properties

Answer 10

Testable properties that describe the way a substance may change or react to form other substances

Question 11

Intensive properties

Answer 11

Properties that stay consistent despite the amount of the substance

Question 12

Extensive properties

Answer 12

Properties that change based on the amount of the substance

Question 13

Energy

Answer 13

Capacity to do work
Kinetic, potential, and thermal

Question 14

Mass

Answer 14

Measure of the amount of matter in an object (same regardless of gravity)

Question 15

Weight

Answer 15

Measure of gravitational pull on an object

Question 16

K to C

Answer 16

K = 273.13 + C

Question 17

Derived units

Answer 17

Units derived from other units (density)

Question 18

Precision

Answer 18

How close each trial is to each other

Question 19

Accuracy

Answer 19

How close the results are to the true value

Question 20

Study of the composition and structure of materials and the changes they undergo

Answer 20

Chemistry

Question 21

Physical state
Composition

Answer 21

Ways of classifying matter

Question 22

Solid (fixed shape)
Liquid (lacks shape but fixed volume)
Gas (lacks shape and volume)

Answer 22

Physical state classification

Question 23

Element (atomic or molecular)
Compound
Mixture vs pure substance

Answer 23

Composition classification

Question 24

Compounds are made up of elements in definite proportions

Answer 24

Law of constant composition

Question 25

Mixture in which the composition is not uniform throughout

Answer 25

Heterogeneous mixture

Question 26

Mixture in which the composition is uniform throughout (must be the same state)

Answer 26

Homogeneous mixture

Question 27

Physical or Chemical Intensive or Extensive

Answer 27

Types of properties

Question 28

Observable properties that can be seen without changing the identity of the substance

Answer 28

Physical properties

Question 29

Testable properties that describe the way a substance may change or react to form other substances

Answer 29

Chemical properties

Question 30

Properties that stay consistent despite the amount of the substance

Answer 30

Intensive properties

Question 31

Properties that change based on the amount of the substance

Answer 31

Extensive properties

Question 32

Capacity to do work Kinetic, potential, and thermal

Answer 32

Energy

Question 33

Measure of the amount of matter in an object (same regardless of energy)

Answer 33

Mass

Question 34

Measure of gravitational pull on an object

Answer 34

Weight

Question 35

K = 273.13 + C

Answer 35

K to C

Question 36

Units derived from other units (density)

Answer 36

Derived units

Question 37

How close each trial is to each other

Answer 37

Precision

Question 38

How close the results are to the true value

Answer 38

Accuracy