1
Q
study of the matter and movement of God’s physical creation
A
Science
2
Q
factor that is observed or measured to determine the results of an experiment
A
Dependent variable
3
Q
factor that is changed to test the hypothesis
A
Independent variable
4
Q
hypothesis can be proven false if one or more of its predictions are false.
A
Falsifiable
5
Q
tentative explanation
A
Hypothesis
6
Q
factors that are the same in all groups
A
Controlled variables
7
Q
groups in an experiment on which a test is performed
A
Experimental groups
8
Q
study of motion and forces
A
Mechanics
9
Q
group in which the independent variable is absent
A
Control group
10
Q
study of reasoning
A
Logic
11
Q
can vary its volume by contracting and expanding
A
Gas
12
Q
any error in reasoning
A
Fallacy
13
Q
use of science to solve practical problems
A
Technology
14
Q
study of the nonliving creation other than the earth and space
A
Physical science
15
Q
substance of the physical world
A
Matter
16
Q
push or pull
A
Force
16
Q
has a definite shape and volume
A
Solid
17
Q
matter that has no definite shape and can flow
A
Liquids
18
Q
science of quantity
A
Mathematics
19
Q
closeness of a measurement to the quantity’s actual value
A
Accuracy
20
Q
refers to how closely several measurements match each other
A
Precision
21
Q
commonly used in everyday life and is the base unit defined by the SI.
A
Kilogram
22
Q
modification of the metric system with meticulously defined standards for all units
A
SI
23
Q
coldest possible temperature
A
Absolute zero
23
what scale is based on the Celsius scale, but 0 K is absolute zero, not the freezing point of water
Kelvin scale
24
branches of physics developed before 1900
Classical physics
25
has both direction and magnitude
Vector
25
used to represent the change in a value
Delta
26
change in position divided by time
Velocity
27
any change in velocity
Acceleration
28
acceleration opposite the direction of motion
Deceleration
29
state of change in position
Motion
30
study of motion and forces
Dynamics
31
branch of physics that addresses the effects of forces on matter
Mechanics
32
what states "force required to accelerate an object at a certain rate equals the object’s mass times the desired acceleration"
Newton’s second law of motion
33
Si unit of mass and weight
Newton
34
velocity of an object does not change unless the object is acted upon by an external force
Newton’s first law of motion
35
for every action there is an equal and opposite reaction
Newton’s third law of motion
36
gravitational force exerted on an object
Weight
37
gravitational force exerted on an object near the surface of the earth or any celestial body
Gravity
38
resistance arising to an object’s motion through a fluid or across a surface
Friction
39
work done when a 1 N force is applied along a distance of 1 m
Joule
40
rate of doing work, or work per unit time
Power
41
unit of power is one joule of work done in one second
Watt
42
attraction that holds atoms or molecules of the same substance together
Cohesion
43
state of matter that has constant volume but can flow and change shape
Liquid
44
kinetic-molecular theory, to explain molecular motion
Kinetic theory of matter
45
forms because the adhesion of water to glass is stronger than the cohesion between water molecules
Meniscus
46
phenomenon in which liquids in thin tubes rise above or fall beneath their own levels
Capillarity
47
unit of pressure
Pascal
48
tendency of a liquid to pull atoms or molecules near the surface back into the liquid
Surface tension
48
states that if the temperature of a gas remains constant the volume and pressure of the gas are inversely proportional
Boyle’s law
49
states that if the pressure of a gas is constant, it's volume and temperature are directly proportional
Charles’s law
50
states that temperature and pressure are directly related when volume is held constant
Amontons’s law
51
if pressure is applied to a fluid inside a closed container, the pressure increase will be distributed equally throughout the container
Pascal’s Principle
52
ability to be easily squeezed and compacted into smaller containers
Compressibility
52
empty space with no matter
Vacuum
52
device used to measure air pressure
Barometer
53
uses an airtight metal box with thin, flexible walls to measure pressure
Aneroid barometer
54
what process is used to develop technology?
engineering design process
55
formula for velocity
v = ∆x/t
56
formula for acceleration
a = vf – vi /t= ∆v/ t
57
formula for Newton's second law of motion
F= ma
58
formula for force of weight
W = mg
59
formula for work
W= Fd
60
formula for power
P = W/ t
60
formula for momentum
p = mv
61
formula for pressure
pressure = force/ area
62
formula for Boyle's law
P1V1= P2V2
63
formula for Charles's law
V1/ T1= V2 /T2
64
formula for Amoton's law
P1/ T1=P2/ T2
64
what's the most important part of an equation?
equal sign
65
closeness of a measurement to the quantity’s actual value
Accuracy
65
recent contributions, including quantum mechanics, relativity, solid-state physics, and particle physics
Modern physics
65
has only a magnitude
scalar quantity
66
What book did Sir Issac Newton write?
Principia
67
can multiply force or speed with or without changing the input direction
Lever
68
simple machine resembling an inclined plane wrapped around a rod; as it is turned
Screw
69
simple machine, similar to a circular lever
Wheel and axel
70
movable pulleys multiply the input force while the fixed pulleys change its direction
Block and tackle
71
sloping surface that allows an object to be raised without lifting it straight up
Inclined plane
72
phenomenon in which liquids in thin tubes rise above or fall beneath their own levels
Capillarity
72
kinetic-molecular theory, to explain molecular motion
Kinetic theory of matter
73
force exerted per unit of area
Pressure
74
unit of pressure
Pascal
75
what principle states: if pressure is applied to a fluid inside a closed container, the pressure increase will be distributed equally throughout the container
Pascal’s Principle
76
upward force exerted by a fluid on a solid object placed in the fluid
Buoyancy
76
Greek mathematician who discovered that fluids exert a buoyant force upon objects within them
Archimedes
77
what states that the buoyant force experienced by an object is exactly equal to the weight of the fluid displaced
Archimedes’ principle of buoyancy
78
vessel that can float on top of the water or maneuver beneath the surface by changing its buoyancy
Submarine
79
used to measure the specific gravity of liquids
Hydrometer
80
submarine is completely underwater but is not sinking, as it would be were it heavier than the water displaced
Neutral buoyancy
81
flexible, gas-filled sac that allows the fish to control its buoyancy
Swim Bladder
82
type of small airship used for various applications not requiring great speed or robustness
Blimp
83
airtight reservoir of a liquid opening into two cylinders of different diameters fitted with movable pistons
hydraulic press
