Unit 7 Review

Flashcard
•
Science
•
4th Grade
•
Hard
+5
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is potential energy?
Back
Potential energy is the energy stored in an object due to its position or state. For example, a ball held at a height has potential energy because of its position above the ground.
Tags
NGSS.MS-PS3-2
2.
FLASHCARD QUESTION
Front
What is mechanical energy?
Back
Mechanical energy is the total energy of an object due to its motion (kinetic energy) and its position (potential energy). For example, water falling from a waterfall has mechanical energy.
3.
FLASHCARD QUESTION
Front
What is sound energy?
Back
Sound energy is the type of energy that is produced when vibrations travel through air or another medium. For example, when a guitar string vibrates, it creates sound energy.
Tags
NGSS.MS-PS4-1
NGSS.MS-PS4-2
4.
FLASHCARD QUESTION
Front
How does carrying a full bucket differ from carrying an empty bucket in terms of energy?
Back
Carrying a full bucket requires more energy than carrying an empty bucket because the full bucket has more weight.
Tags
NGSS.MS-PS3-4
NGSS.MS-PS3-5
5.
FLASHCARD QUESTION
Front
What factors affect the energy produced by a wind turbine?
Back
The energy produced by a wind turbine is affected by wind speed, the size of the turbine, and the efficiency of the turbine.
Tags
NGSS.MS-ETS1-4
6.
FLASHCARD QUESTION
Front
What is kinetic energy?
Back
Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.
Tags
NGSS.MS-PS3-1
NGSS.MS-PS3-5
7.
FLASHCARD QUESTION
Front
What is the relationship between height and potential energy?
Back
The higher an object is positioned, the more potential energy it has. For example, a ball on a high shelf has more potential energy than a ball on the floor.
Tags
NGSS.MS-PS3-2
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