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Questions and Answers
What is physical change?
What is physical change?
A physical change is to change one or more physical properties in which the matter's identity stays the same.
Which of the following are examples of physical changes?
Which of the following are examples of physical changes?
- Breaking glass (correct)
- Folding paper (correct)
- Mixing candies (correct)
- Melting ice (correct)
- Shredding paper (correct)
Which of the following is not a physical change?
Which of the following is not a physical change?
- Water turns into ice
- Frying an egg
- Baking a cake (correct)
- Burning a match
How can matter change state?
How can matter change state?
A form of energy is ______ energy.
A form of energy is ______ energy.
Match the changes in state of matter with their appropriate names:
Match the changes in state of matter with their appropriate names:
Flashcards
Physical Change
Physical Change
A change in which the substances in a material remain the same, but the form or appearance changes.
Change of State
Change of State
A change in the state of matter (solid, liquid, gas) due to the addition or removal of heat. Examples include melting, freezing, evaporation, and condensation.
Melting
Melting
The process of a solid turning into a liquid.
Evaporation
Evaporation
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Freezing
Freezing
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Breaking Glass
Breaking Glass
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Mixing Candies
Mixing Candies
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Shredding Paper
Shredding Paper
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Folding Paper
Folding Paper
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Melting Ice
Melting Ice
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Study Notes
Physical Changes
- Physical change alters the physical properties but not the identity of a substance
- Examples include breaking glass, mixing candies, shredding paper, folding paper, and melting ice.
Identifying Physical Changes
- Question: Which of the following are not physical changes?
- Answer:
- Water turning into ice: physical change
- Baking cake: not a physical change
- Frying an egg: not a physical change
- Burning a match: not a physical change
Changing Matter States
- Changing a substance's state requires energy transfer.
- Thermal energy is the energy involved in such changes.
- Thermal energy is also known as heat.
- Changes from solid to liquid: melting
- Changes from liquid to gas: evaporation
- Changes from liquid to solid: freezing
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