What is energy?
Understanding Energy

Flashcard
•
Science
•
7th Grade
•
Easy

Sebastian Alongi
Used 1+ times
FREE Resource
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25 questions
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1.
FLASHCARD QUESTION
Front
Back
Energy is the ability to make things happen or cause change. It can cause something to move, heat up, or light up.
2.
FLASHCARD QUESTION
Front
What is kinetic energy?
Back
Kinetic energy is energy in motion. Examples include a rolling ball or a moving car.
3.
FLASHCARD QUESTION
Front
What is potential energy?
Back
Potential energy is stored energy due to an object’s position or structure. Examples include a stretched rubber band or a rock on a hill.
4.
FLASHCARD QUESTION
Front
How does energy flow in systems?
Back
Energy flows in systems but doesn’t disappear; it can change forms. In a closed system, energy may move or transform but is never lost.
5.
FLASHCARD QUESTION
Front
What is the Law of Conservation of Mass?
Back
During a chemical reaction, the total mass remains constant. Mass isn’t created or destroyed; it simply changes form.
6.
FLASHCARD QUESTION
Front
Why is conservation of mass observed in a closed system?
Back
In a closed system, no matter enters or leaves, so mass is conserved. A sealed container helps demonstrate mass conservation better than an open one.
7.
FLASHCARD QUESTION
Front
What are the main characteristics of solids?
Back
Solids have a fixed shape and closely packed particles.
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