1.2 Methods Of Science

Question 0

Steps of the Scientific Method

Answer 0

1. Identify the problem or determine what you want to know
2. Hypothesis
3. Experiment

Question 1

Scientific Method

Answer 1

Planned, organized approach to solving a problem

Question 2

Independent Variable

Answer 2

The factor that is manipulated by the experimenter

Question 3

Dependent Variable

Answer 3

A factor that can change if the independent variable changes

Question 4

Contants

Answer 4

Factors that do not change during the experiment

Question 5

Le Systéme Intenational d’Unités(SI)

Answer 5

Standard system of units that most scientific studies & experiments use

Question 6

Length

Answer 6

Standard SI: meter(m)

100m= 1cm. 1000cm= 1km

Question 7

Weight

Answer 7

Measure of gravitational force on an object

• measure with a scale
• SI unit: newton(N)

Question 8

Mass

Answer 8

• SI unit: kilogram(kg)

- doesn’t change with an objects location

Question 10

Area

LxW

Answer 10

The amount of surface included within a set of boundaries & is expressed in sq. units of length (m^2 or cm^2)
Volume: cm^3
- solid object: m^3
- fluid: mL or L

Question 11

Density

Answer 11

Measure of the amount of matter that occupies as given space (g/cm^3, g/mL, kg/m^3)

Question 12

Time

Answer 12

interval between 2 events & measured with watch or clock- seconds(s)

Question 13

Temperature

Answer 13

measure of the average vibrations of the particles that make up a material
- measured with thermometer on the Celsius (C) scale

Question 14

Scientific Notation

Answer 14

used to express the number as a multiplier & a power of 10