Studying Physics and Chemistry

Question 1

Mass

Answer 1

A measurement of the amount of matter that makes something up.

Question 2

Matter

Answer 2

Anything that has mass and takes up space.

Question 3

Volume

Answer 3

The amount of space something occupies.

Question 4

Energy

Answer 4

The ability to cause change or do work.

Question 5

Phases of Matter

Answer 5

The different forms matter can take; commonly occur as solid, liquid, or gas. Also plasma.

Question 6

Chemical Change

Answer 6

A chemical change transforms one kind of matter into another kind (or several) which may have different properties.

Question 7

Solid

Answer 7

Definite volume, definite shape

Question 8

Liquid

Answer 8

Definite volume, but takes the shape of its container

Question 9

Gas

Answer 9

Indefinite volume (expands to fill its container), takes the shape of its container

Question 10

Distance

Answer 10

The amount of space between two points.

Question 11

Astronomical Unit (AU)

Answer 11

The distance between Earth and the Sun (1 AU). Approximately 93 million miles.

Question 12

Light Year

Answer 12

The distance light travels in one year (9.5 trillion km).

Question 13

Natural Laws

Answer 13

The set of rules that are obeyed by every detail of everything that occurs in the universe, including living creatures and human technology.

Question 14

Inquiry

Answer 14

A process of learning that starts with questions and proceeds by seeking the answers to the questions.

Question 15

Deduce

Answer 15

To figure something out from known facts using logical thinking. For example, “this is what happened…because…”.

Question 16

Hypothesis

Answer 16

An unproved or preliminary explanation that can be tested by comparison with scientific evidence. Early hypotheses are rarely correct and are often modified as new evidence becomes available.

Question 17

Theory

Answer 17

A scientific explanation supported by much evidence collected over a long period of time. Our way of explaining a natural law or observations in science.

Question 18

Scientific Method

Answer 18

A process of learning that begins with a hypothesis and proceeds to prove or change the hypothesis by comparing it with scientific evidence.

Question 19

Objective

Answer 19

Describes evidence that documents only what actually happened as exactly as possible.

Question 20

Repeatable

Answer 20

Describes evidence that can be seen independently by others if they repeat the same experiment or observation in the same way.