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- 1. Multiple Choice
Looking at the graph, what is happening to the ice where the blue arrow is pointing?
the temperature starts to level off. This is because it takes time for all the ice to melt.
When the ice has melted, the graph continues to go upwards until the water reaches boiling point.
The graph goes in a line upwards as the temperature of the ice starts to increase.
The graph levels off as it takes time for all the liquid water to turn to steam before rising again.
- 2. Multiple Choice
What is happening to the ice where the red arrow is pointing (second phase)
The temperature levels off as it takes time for all the liquid water to turn to steam before rising again.
Latent heat as the temperature starts to level off. This is because it takes time for all the ice to melt.
Once all the ice has melted the graph continues to go in a straight line until the water reaches boiling point.
The graph goes in a straight line as the temperature of the ice starts to increase.
- 3. Multiple Choice
What is happening to the ice in the section where the green arrow is pointing?
The graph goes in a straight line as the temperature of the ice starts to increase.
The temperature starts to level off as it takes time for all the liquid water to turn to steam before rising again.
Latent heat
Once all the ice has melted the graph continues to go in a straight line until the water reaches boiling point.
- 4. Multiple Choice
What is the orange arrow pointing at?
The graph goes in a straight line as the temperature of the ice starts to increase.
The temperature starts to level off. This is because it takes time for all the ice to melt.
Once all the ice has melted the graph continues to go in a straight line until the water reaches boiling point.
Latent heat as it takes time for all the liquid water to turn to steam before rising again.
- 5. Multiple Choice
I could explain how to graph changes of state to someone else
I could CONFIDENTLY
I could BUT THERE ARE SOME THINGS I AM STILL UNSURE ABOUT
Pfft, AS IF. I need to go back and look at this section again.
- 6. Multiple Choice
How does thermal energy play a role in particle motion and changes of state?
Thermal energy is a term that refers to temperature
Increasing an object's thermal energy increases particle motion and can cause a change of state.
Decreasing an object's thermal energy increases particle motion and can cause a change of state.
Thermal energy is the energy added from a heat source.
- 7. Multiple Choice
The diagram shows a heating curve for ice. Which line represents the ice melting?
A
B
C
D
E
- 8. Multiple Choice
Why are lines B and D flat?
The ice is melting
The ice is freezing
All of the thermal energy is used to break the bonds
They stopped the stopwatch
They stopped heating the ice.
- 9. Multiple Choice
The diagram shows a heating curve for ice. Which line represents the ice in a liquid state (water)?
A
B
C
D
E
- 10. Multiple Choice
The diagram shows a cooling curve for ice. Which line represents the ice in a liquid state (water)?
A
B
C
D
E
- 11. Multiple Choice
The diagram shows a cooling curve for ice. Which line represents the ice freezing?
A
B
C
D
E
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