Phase Change Flashcard

Phase Change Flashcard

Assessment

Flashcard

Physics

7th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a phase change?

Back

A phase change is the transformation of a substance from one state of matter (solid, liquid, gas) to another due to the addition or removal of energy.

2.

FLASHCARD QUESTION

Front

What happens to water molecules when energy is removed?

Back

The water molecules move slower and start moving in place.

3.

FLASHCARD QUESTION

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object possesses due to its motion.

4.

FLASHCARD QUESTION

Front

How does temperature affect molecular movement?

Back

As temperature increases, molecules move faster; as temperature decreases, molecules move slower.

5.

FLASHCARD QUESTION

Front

What is the difference between a solid, liquid, and gas in terms of molecular arrangement?

Back

In solids, molecules are tightly packed and vibrate in place; in liquids, molecules are close but can move around each other; in gases, molecules are far apart and move freely.

6.

FLASHCARD QUESTION

Front

What occurs during melting?

Back

During melting, a solid absorbs energy and changes into a liquid.

7.

FLASHCARD QUESTION

Front

What occurs during freezing?

Back

During freezing, a liquid loses energy and changes into a solid.

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