Physical Science Test Nine Weeks

Question 1

a partial representation of something else

Answer 1

model

Question 2

model of a design used for testing

Answer 2

prototype

Question 3

discovered air pressure

Answer 3

Torricelli

Question 4

a device to measure altitude

Answer 4

altimeter

Question 5

factor used to determine the results of an experiment

Answer 5

dependent variable

Question 6

tentative explanation

Answer 6

hypothesis

Question 7

limitations of science

Answer 7

bias, approximations, assumptions, scope of science

Question 8

group in which the independent variable is absent

Answer 8

control group

Question 9

study of matter and movement of God’s physical creation

Answer 9

science

Question 10

fluids tend to move from areas of _______ to areas of _______

Answer 10

higher pressure to lower pressure

Question 11

a hypothesis can be proven false if one or more of its predictions is false

Answer 11

falsifiable

Question 12

means that a scientist will obtain consistent results if he performs the experiment many times, keeping all factors as similar as possible

Answer 12

repeatability

Question 13

two reasons we use science

Answer 13

to glorify God; man’s benefit

Question 14

study of reasoning

Answer 14

logic

Question 15

a statement of fact

Answer 15

proposition

Question 16

formula for Newton’s second law of motion

Answer 16

F = ma (force equals mass times acceleration)

Question 17

formula for pressure

Answer 17

P = F / A (pressure equals force divided by area)

Question 18

branch of physics developed since 1900

Answer 18

modern physics

Question 19

a model of a design used for testing

Answer 19

prototype

Question 20

use of science to solve practical problems

Answer 20

technology

Question 21

occurs when someone attacks the person making an argument instead of challenging the person’s facts

Answer 21

ad hominem fallacy

Question 22

property of matter that makes it resist changes in motion

Answer 22

inertia

Question 23

a push or pull

Answer 23

force

Question 24

anything that has inertia

Answer 24

matter

Question 25

substance of the physical world

Answer 25

matter

Question 26

the amount of space that matter takes up

Answer 26

volume

Question 27

the amount of inertia an object has

Answer 27

mass

Question 28

the amount of matter in an object

Answer 28

mass

Question 29

the most important part of an equation

Answer 29

the equal sign

Question 30

the "language of science"

Answer 30

math

Question 31

for measured data to be meaningful, it must include ____

Answer 31

units

Question 32

the system with meticulously defined standards

Answer 32

SI system

Question 33

the SI unit of time

Answer 33

second

Question 34

the SI unit of length

Answer 34

meter

Question 35

the SI unit of mass

Answer 35

kilogram

Question 36

the SI unit of work

Answer 36

Joule

Question 37

the SI unit of force

Answer 37

Newton

Question 38

the SI unit of power

Answer 38

watt

Question 39

coldest temperature possible at which molecular vibration ceases

Answer 39

absolute zero

Question 40

a measure with both magnitude and direction

Answer 40

vector (oh yeah)

Question 41

the study of motion and forces

Answer 41

dynamics

Question 42

the change in position divided by time

Answer 42

velocity

Question 43

any change in velocity

Answer 43

acceleration

Question 44

an acceleration opposite the direction of motion

Answer 44

deceleration

Question 45

the book in which Newton published his findings

Answer 45

Principia

Question 46

the third law of motion states _______

Answer 46

for every action, there is an equal and opposite reaction

Question 47

acceleration due to gravity

Answer 47

9.81 meters per second squared

Question 48

center-seeking force

Answer 48

centripetal force

Question 49

the speed at which an object will stop speeding up

Answer 49

terminal velocity

Question 50

matter that has no definite shape and can flow

Answer 50

fluid

Question 51

theory stating that all molecules of a substance are in constant motion and move more rapidly as the object is heated

Answer 51

kinetic theory of matter

Question 52

the attraction between molecules of the same substance

Answer 52

cohesion

Question 53

the attraction between molecules of different substances

Answer 53

adhesion

Question 54

the tendency of a liquid to pull atoms or molecules near the surface back into the liquid, forming a “skin” or film on the surface

Answer 54

surface tension

Question 55

the phenomenon in which liquids in thin tubes rise above or fall beneath their own levels because of adhesion and cohesion

Answer 55

capillarity

Question 56

a curved surface of a liquid formed because of a difference in strength between the cohesion of the fluid molecules and the glass molecules

Answer 56

meniscus

Question 57

force exerted per unit of area

Answer 57

pressure

Question 58

the SI unit of pressure

Answer 58

Pascal

Question 59

two factors that affect gravitational pressure

Answer 59

density and depth

Question 60

the principle stating that a pressure increase applied to a fluid inside a closed container will be distributed equally throughout the container

Answer 60

Pascal's principle

Question 61

a device that uses Pascal’s principle to multiply a force by using a small-diameter input piston and a large-diameter output piston connected by a liquid-filled reservoir

Answer 61

hydraulic press

Question 62

the ability of a gas to be easily squeezed and compacted into a smaller container

Answer 62

compressibility

Question 63

the law stating that a gas’s volume and pressure are inversely proportional when the temperature is held constant

Answer 63

Boyle's law

Question 64

the law stating that the volume and temperature of a gas are directly proportional when a pressure is held constant

Answer 64

Charles's law

Question 65

states that gas temperature and pressure are directly related when volume is held constant

Answer 65

Amonton's law

Question 66

the gravitational pressure within a sea of air

Answer 66

atmospheric pressure

Question 67

an empty space with no matter

Answer 67

vacuum

Question 68

device used to measure air pressure

Answer 68

barometer

Question 69

momentum formula

Answer 69

p = mv (momentum equals mass times velocity)

Question 70

work formula

Answer 70

W = Fd (work equals force times distance)

Question 71

power formula

Answer 71

p = W / t (power equals work divided by time)

Question 72

Charles's law formula

Answer 72

V1/T1 = V2/T2

Question 73

Boyle's law formula

Answer 73

P1V1 = P2V2

Question 74

Amonton's law

Answer 74

P1/T1 = P2/T2