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Physical Science Unit 1 > Chapter 1, 2, 3 > Flashcards

Chapter 1, 2, 3 Flashcards

(52 cards)

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1
Q

Physical Science

A

Study of matter and energy

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2
Q

Scientific method

A

A series of steps that scientists take to answer questions and solve problems.

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3
Q

Observation

A

Any use of the senses to gather information

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4
Q

Data

A

Pieces of info gathered through experimentation

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5
Q

Theory

A

A unifying explanation for a broad range of hypotheses and observation supported by testing

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6
Q

Law

A

A summary of many experimental results and observations, a law tells you how things work

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7
Q

Volume

A

The amount of space that something occupies or the amount of space that something contains

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8
Q

Mass

A

The amount of matter that something is made of, it’s value does not change with the objects location in the universe

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9
Q

Temperature

A

A measure of the average kinetic energy of the particles in an object

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10
Q

Density

A

The amount of matter in a given space, mass per unit volume

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11
Q

Meniscus

A

The curve at a liquids surface by which you measure the volume of the liquid

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12
Q

Gravity

A

A force of attraction between objects that is due to their masses

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13
Q

Weight

A

A measure of the gravitational force exerted on an object, usually by the earth

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14
Q

Newton

A

The SI unit of force

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15
Q

Inertia

A

The tendency of all objects to resist any change in motion

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16
Q

Physical property

A

A property of matter that can be observed or measured without changing the identity of the matter.

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17
Q

Chemical property

A

Describes a substance based on its ability to change into a new substance with different properties.

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18
Q

Physical change

A

Affects one or more physical properties of a substance, most physical changes are easy to undo

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19
Q

Chemical change

A

Occurs when one or more substances are changed into entirely new substances with different properties, cannot be reversed using physical means

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20
Q

States of matter

A

The physical forms in which a substance can exist

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21
Q

Solid

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A

The state in which matter has a definite shape and volume

22
Q

Liquid

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A

The state in which matter takes the shape of its container but has a definite volume

23
Q

Gas

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A

The state in which matter changes in both shape and volume

24
Q

Pressure

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A

The amount of force exerted on a given area, the SI unit for pressure is the pascal

25
Plasma
The state of matter that does not have a definite shape or volume and whose particles have broken apart, plasma is composed of electrons and positively charged ions.
26
Change of state
The conversion of a substance from one physical form to another
27
Melting
The change of state from a solid to a liquid
28
Endothermic
The term used to describe a change in which energy is absorbed, the change can be a physical or chemical change
29
Freezing
The change of state from a liquid to a solid
30
Exothermic
The term used to describe a change in which energy is released or removed, the change can be physical or chemical
31
Vaporization
The change of state from a liquid to a gas, includes boiling and evaporation
32
Boiling
Vaporization that occurs throughout a liquid
33
Evaporation
Vaporization that occurs at the surface of a liquid below its boiling point
34
Condensation
The change of state from a gas to a liquid
35
Sublimation
The change of state from a solid directly into a gas
36
Particles are close together in a.....
Liquid and solid
37
Particles are held tightly in place in a.....
Solid
38
Particles break away completely from one another in a....
Gas
39
Gas changes______ to fill a container.
Volume
40
Gases and liquids change _______ to fill a container.
Shape
41
_______ can be used in hydraulic systems.
Liquids
42
Gases obey ______ law.
Boyles
43
Particles vibrate in place in a....
Solid
44
_______ has surface tension.
Liquids
45
Particles have orderly arrangement in this type of solid.
Crystalline
46
_______ said that as a volume of a gas increases, it's pressure decreases.
Boyle
47
Because of surface tension,liquids form spherical _______.
Drops
48
Has no definite shape or volume, conducts electric current.
Plasma
49
If a substance pours very slowly, it has high
Viscosity
50
Iron ______ is also known as fools gold.
Pyrite
51
The SI unit for measuring mass is a
Kilogram
52
A _________ property is always the same, whether the sample observed is large or small.
Characteristic

Physical Science Unit 1 (1 decks)

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