Gen Sci

Question 1

What is the Scientific Method?

Answer 1

tool used by scientists to find solutions

Question 2

What are the steps of scientific method

Answer 2

Ask Question
Do Background Research
Create hypothesis
Test with an experiment
Analayze results and Draw conclusion
Report Results
(if false, Try again)

Question 3

Hypothesis

Answer 3

tentative answer to a problem that can be tested by experiments and further studies
Assumption based on observation

Question 4

Theory

Answer 4

Tentative explanation to a certain phenomenon based from years of investigation
has basis

Question 5

Scientific Law

Answer 5

generalization proven by studies and supported by the scientific community

Question 6

Length

Answer 6

Meter (m)

Question 7

Mass

Answer 7

Kilogram (kg)

Question 8

Time

Answer 8

Seconds (s)

Question 9

Temperature

Answer 9

Kelvin (K)

Question 10

Electrical Current

Answer 10

Ampere (A)

Question 11

Amount of substance

Answer 11

Moles (mol)

Question 12

Luminous Intensity

Answer 12

Candela (cd)

Question 13

Significant Figures

Answer 13

all certain/sure digits plus one that is uncertain/unsure

Question 14

Addition and Subtraction

Answer 14

round off to the least precise measurement

Question 15

Multiplication and Division

Answer 15

round of to the least number of significant figures

Question 16

Mantissa

Answer 16

a number that can be equal or greater than 1 but less than 10

Question 17

Lever

Answer 17

easier to do work on a particular load

Question 18

Parts of a Lever

Answer 18

Load - object
Effort - amount of force applied
Fulcrum - pivot point

Question 19

Wheel and Axle

Answer 19

modified lever using two wheels attached in the middle (one is bigger than the other)

Question 20

Pulley

Answer 20

lifts heavy objects`

Question 21

Inclined Plane

Answer 21

ramp to lift objects to a higher position

Question 22

Wedge

Answer 22

two parts: Base and Height

Question 23

Screw

Answer 23

two parts: pitch and the radius

Question 24

Energy

Answer 24

Capacity to do work

Joule (J)

Question 25

Mechanical Energy

Answer 25

sum of Potential Energy and Kinetic Energy

Question 26

Potential Energy

Answer 26

Stored Energy energy associated with an object due to its shape, position, configuration Chemical, Gravitational, Elastic, Magnetic

Question 27

Kinetic Energy

Answer 27

energy of an object due to motion

Question 28

Electrical Energy

Answer 28

due to the motion of charged particles (electrons) through conducting wires

Question 29

Radiant/Light energy

Answer 29

transported by Electromagnetic waves | Radio waves, Microwaves, Infrared Radiation, Visible Light, Ultra Violet, x-ray, Gamma Ray

Question 30

Sound Energy

Answer 30

when a force causes an object or substance to vibrate | Energy is transferred through the substance in a wave

Question 31

Thermal Energy/ Heat

Answer 31

sum of kinetic energies of the molecules due to linear motion

Question 32

Convection

Answer 32

Lands and Sea Breeze | heat is transferred by currents in a fluid

Question 33

Conduction

Answer 33

Direct transfer of heat

Question 34

Radiation

Answer 34

heat is transferred by electromagnetic waves

Question 35

Matter

Answer 35

anything that occupied space and has mass

Question 36

Solid

Answer 36

definite volume and shape, high cohesion and density, incompressible, greater PE than KE

Question 37

Liquid

Answer 37

definite volume, indefinite shape, low cohesion, average density, incompressible, equal PE and KE

Question 38

Gas

Answer 38

indefinite volume and shape, almost non-existent cohesion, low density, compressible, greater KE than PE

Question 39

Plasma

Answer 39

Bose-Einstein Condensate

Question 40

Terrestrial Radiation

Answer 40

radiant energy emitted by the Earth which makes life possible

Question 41

Solid to liquid

Answer 41

Fusion

Question 42

Liquid to Solid

Answer 42

Solidification

Question 43

Liquid to Gas

Answer 43

Vaporization

Question 44

Gas to Liquid

Answer 44

Condensation

Question 45

Solid to Gas

Answer 45

Sublimation

Question 46

Gas to Solid

Answer 46

Deposition

Question 47

Cohesion

Answer 47

between like particles

Question 48

Adhesion

Answer 48

between unlike particles

Question 49

Surface Tension

Answer 49

the exposed surface contracts to the smallest possible area because of unequal molecular cohesive forces exists because liquid always try to minimize surface area

Question 50

Capillarity

Answer 50

Rising of liquid in a thin tube due to adhesion