MATTER

hareem has an ice cube . The ice cubes melt in her hands . which energy is her hands providing

• electrical energy

• heat energy

• mechanical energy

• chemical energy

WHY DO SOLIDS DO NOT DIFFUSE

• THEY DONT WANT TO

• THEIR PARTICLES ARE TIGHTLY PACKED AND CANNOT MOVE

• THEY VIBRATE ON FIX POSITIONS

• ALL OF ABOVE

IN WHAT STATE ARE PARTICLES FREE TO MOVE

• SOLIDS

• LIQUIDS

• GASES

• EXCEPT SOLID EVER OPTION CORRECT

WHICH STATEMENT ABOUT LIQUIDS IS CORRECT

• PARTICLES ARE TIGHTLY PACKED

• PARTICLES SLIDE PASS EACH OTHER

• THEY ARE NON COMPRESSABLE

• THEY HAVE A REGULAR ARRANGEMENT

ACCORDING TO PARTICLE THEORY OF MATTER , WATER MOLECULES LOSE THEIR ENERGY, DECREASE KINETIC ENERGY WHEN THEY ARE

• FROZEN INTO SOLID

• EVAPORATED AS STEAM

• MELTED FROM SOLID TO LIQUID

• MIXED WITH OTHER SUBSTANCE IN LOW TEMPERATURE

WHICH STATE CHANGE IS THIS

• SOLID TO GAS

• GAS TO SOLID

• SOLID TO LIQUID

• NONE OF ABOVE

GASES EXERT PRESSURE ON WALL OF CONTAINER BECAUSE THE GAS MOLECULES

1. 1. COLLIDE WITH EACH OTHER

2. 2. COLLIDE WITH THE WALSS OF CONTAINER

3. 3. HAVE DEFINITE VOLUME

4. 4. BECAUSE OF TEMPERATURE

• 1 AND 4

• 3 AND 4

• 1 AND 2

• 1, 2, 3 AND 4

WHAT IS CONDENSTION

• GASES TO LIQUIDS

• TAKING HEAT FROM GASES

• STATE CHANGE

• ALL OF ABOVE

WHAT INCREASE WHEN MELTING OCCURS

• KINETIC ENERGY

• COLLISION BETWEEN PARTICLES

• DISTANCE BETWEEN PARTICLE

• ALL GIVEN

WHY ARE GASES COMPRESSABLE

• BECAUSE THEIR PARTICLES ARE FAR APART

• BECAUSE THEY HAVE KINETIC ENERGY

• BECAUSE THEIR PARTICLES COLLIDE WITH EACH OTHER

• BECAUSE GASES HAVE DEFINITE SHAPE