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- 1. Multiple Choice
Boiling is an example of a phase change. What changes in state is it referring to?
liquid to gas
gas to solid
gas to liquid
solid to liquid
- 2. Multiple Choice
Particles (molecules) in a ______________________ have more kinetic energy than the other states of matter.
gas
solid
liquid
- 3. Multiple Choice
At higher temperatures
particles in an object have less energy.
particles in an object move faster.
a gas contracts.
particles will start to move back to a fixed position.
- 4. Multiple Choice
A gas
has a definite shape but no definite volume.
has a definite volume and a definite shape.
has slow-moving particles.
no definite shape and no definite volume.
- 5. Multiple Choice
Freezing is an example of a phase change. What changes in state is it referring to?
Solid to gas
Liquid to solid
Gas to solid
Liquid to gas
- 6. Multiple Choice
Which state of matter has tightly packed molecules?
solid
liquid
gas
plasma
- 7. Multiple Choice
Which state of matter has a definite shape and a definite volume?
solid
liquid
gas
plasma
- 8. Multiple Choice
What phase change is happening when ice cream changes from a solid to a liquid?
freezing
melting
burning
evaporation
- 9. Multiple Choice
Which is true about a liquid? It
has indefinite shape and ndefinite volume.
has a definite shape and a definite volume.
is found in stars.
has definite volume, but indefinite shape.
- 10. Multiple Choice
Particles of a liquid
are tightly packed together and stay in a fixed position.
move away from each other quickly.
decrease in volume with increasing temperature.
are free to move around one another but still touch.
- 11. Multiple Choice
What term describes a solid changing immediately to a gas?
Deposition
Sublimation
Evaporation
Freezing
- 12. Multiple Choice
What changes in state happen during condensation?
gas to solid
gas to liquid
liquid to solid
solid to liquid
- 13. Multiple Choice
The speed of the movement of the molecules in a substance determines the _____ of the substance.
volume
density
pressure
temperature
- 14. Multiple Choice
Which has a greater distance between particles?
water at 120*C
water at 20*C
water at 0*C
water at 70*C
- 15. Multiple Choice
The slower the particles in a substance move,
the colder it is.
the warmer it is.
the more energy it has.
the less density it has.
- 16. Multiple Choice
Thermal energy is
heat energy.
the energy of motion.
energy of nuclear processes.
an indication of physical change.
- 17. Multiple Choice
Helium balloons rise because
helium is less dense than air.
helium is more dense than air.
helium is cooler than air.
helium is warmer than air.
- 18. Multiple Choice
What is temperature?
The average KE of the particles in a substance.
The same thing as heat.
The average PE of the particles in a substance.
- 19. Multiple Choice
This is a measure of how hot or cold something is; specifically a measure of how fast particles in an object are moving.
Thermometer
Temperature
Absolute Zero
Specific Heat
- 20. Multiple Choice
What would be the effect on the particles if more thermal energy is supplied (added) to the system?
They would slow down.
They would stop moving.
They would speed up.
There would be no effect.
- 21. Multiple Choice
What phase change occurs between points B and C if heat is added?
Freezing
Melting
Boiling
Condensing
- 22. Multiple Choice
Which phase change occurs between points D and E if heat is added?
Freezing
Melting
Boiling/Vaporization
Condensing
- 23. Multiple Choice
Which states of matter exist between points B and C?
Solid and liquid
Liquid and gas
Gas and solid
Plasma and gas
- 24. Multiple Choice
What endothermic changes are happening between points B and C on the graph? (Choose more than one answer.)
The substance is changing from a solid to a liquid
The substance is changing from a liquid to a gas.
Temperature is increasing.
Particle attraction is weakening.
- 25. Multiple Choice
Which phase change occurs between points B and C if heat is REMOVED?
Freezing
Boiling
Melting
Condensing
- 26. Multiple Choice
The picture below shows a closed system before and after undergoing a change.
What caused the change in the system?
Particles were added to the system.
Water was added to the system.
Heat was added to the system.
Air was added to the system.
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