A WAY OF EXPLAINING MATTER. IT ALLOWS YOU TO THINK OF THE ATOMS AS SMALL SOLID BALLS. IT HELPS TO EXPLAIN THE WAY THE PARTICLES MOVE, BEHAVE AND THE FORCES BETWEEN THEM
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WHAT ARE THE STATES OF MATTER?
SOLID, LIQUID AND GAS
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HOW ARE THE STATES DIFFERENT?
THE PARTICLES ARE THE SAME, BUT THE ARRANGEMENT AND ENERGY OF THE PARTICLES ARE DIFFERENT
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HOW DOES REVERSING THE CHANGE OF STATE AFFECT THE PARTICLES?
THE PARTICLES GO BACK TO HOW THEY WERE BEFORE, SO PHYSICAL CHANGES ARE DIFFERENT FROM CHEMICAL CHANGES
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SOLIDS
STRONG FORCES OF ATTRACTION GOLD THE PARTICLES CLOSE TOGETHER IN A FIXED REGULAR ARRANGEMENT. PARTICLES DONT HAVE MUCH KINETIC ENEREGY SO JUST VIBRATE IN THEIR FIXED POSITIONS
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LIQUIDS
FORCES OF ATTRACTION ARE WEAKER. PARTICLES ARE CLOSE TOGETHER, BUT CAN MOVE PAST EACH OTHER. HAVE MORE KINETIC ENERGY THAN A SOLID SO MOVED IN RANDOM DIRECTIONS AT LOW SPEEDS
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GASES
ALMOST NO FORCES OF ATTRACTION BETWEEN PARTICLES. MORE KINETIC ENERGY AND ARE FREE TO MOVE. THEY TRAVEL IN RANDOM DIRECTIONS AT HIGH SPEEDS
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WHAT HAPPENS WHEN YOU HEAT A LIQUID?
EXTRA ENERGY PASSES INTO THE PARTICLE'S KINETIC ENERGY STORES, MAKING THEM MOVE FASTER. WHEN ENOUGH ENERGY IS GIVEN TO BREAK THE BONDS, BIG BUBBLES APPEAR, AKA BOILING
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WHAT HAPPENS WHEN YOU HEAT A SOLID?
THE EXTRA ENERGY MAKES THE PARTICLES VIBRATE FASTER UNTIL THE FORCES BETWEEN THEM ARE PARTLY OVERCOME AND START TO MOVE AROUND, AKA MELTING
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WHAT CAN AND CANT VARY BETWEEN STATE?
IF WORKING IN A CLOSED SYSTEM (NO PARTICLES CAN ESCAPE OR GET IN) THE DENSITY CAN VARY BY THE MASS DOESN'T
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WHY DOESN'T THE MASS CHANGE?
THE MASS REFERS TO THE PARTICLES, WHICH AREN'T CHANGING, SO THE MASS STAYS THE SAME
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WHY DOES THE DENSITY VARY?
ITS VOLUME CHANGES WITH THE STATE. DENSITY = MASS / VOLUME. IF YOU INCREASE OR DECREASE THE VOLUME THE DENSITY WILL CHANGE
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WHY DOES THE VOLUME CHANGE?
THE PARTICLES IN MOST SUBSTANCES ARE CLOSER TOGETHER AS A SOLID AND SPREAD FURTHER APART AS A LIQUID OR A GAS, CHANGING THE VOLUME
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Other cards in this set
Card 2
Front
WHAT ARE THE STATES OF MATTER?
Back
SOLID, LIQUID AND GAS
Card 3
Front
HOW ARE THE STATES DIFFERENT?
Back
Card 4
Front
HOW DOES REVERSING THE CHANGE OF STATE AFFECT THE PARTICLES?
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