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Physics > Particle nature of matter+a little changes of state > Flashcards

Particle nature of matter+a little changes of state Flashcards

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1
Q

What is matter

A

Any substance that has mass and takes up space by having volume

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2
Q

What is room temperature

A

25 degrees

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3
Q

What is atomos

A

Greek for indivisible

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4
Q

What is matter

A

Stuff that takes up space and has mass

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5
Q

What is mass

A

The amount of matter in something

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6
Q

What, when, where and who suggested what matter was made of?

A

Democritus (2000 years ago in Greece) suggested that matter was made up of tiny particles too small to be seen

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7
Q

What did Democritus think

A

That if you kept cutting a substance smaller and smaller you would get to the smallest possible particles, the building blocks of matter.

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8
Q

What are the 4 main ideas in the particle model?

A
  1. All matter is made up of tiny particles
  2. The particles of matter are always moving
  3. The particles have spaces between them
  4. Adding heat to the particles makes them move faster
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9
Q

What are the 3 particles matter is made up of

A

Atoms
Molecules
Ions

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10
Q

What are atoms

A

The smallest part of matter(an element)

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11
Q

What are molecules

A

Two or more atoms bonded together

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12
Q

What are ions

A

Positive or negatively charged particles

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13
Q

What do particles do to each other

A

They exert forces of attraction/repulsion on each other.

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14
Q

True/false particles are always in motion

A

True

But its invisible to the human eye

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15
Q

What do particles have

A

Kinetic energy

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16
Q

How do a solids particle move

A

They vibrate in place might be in a lattice structure

17
Q

How a liquids particles move?

A

They flow freely over each other and take the shape of the bottom of the container

18
Q

What are sub-atomic particles

A

Protons,neutrons,electrons

Quarks

19
Q

How do a gases particles move

A

They are far apart and move through space, they take the shape and fill the volume of the entire container.

20
Q

What is the structure of the particles in a solid called

A

Crystal Lattice structure

21
Q

Which states of matter can be compressed

A

Gas

22
Q

What happens when you add heat to a substance

A

The molecules move faster and the spaces between the particles increase

23
Q

When will the states of matter
Expand
Contract

A

When
Heated
Cooled

24
Q

What is it called when a state of matter changes to another

A

Phase changes/ changes of state

25
Q

What are the densities of a
Solid
Liquid
Gas

A

High density, particles close
Fairly high
Low densit

Physics (7 decks)

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