Unit 1 Chapter 4&5 Flashcard
Flashcard
•
Science
•
3rd Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an electromagnet?
Back
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It typically consists of coiled wire and a source of electric charge, such as a battery.
2.
FLASHCARD QUESTION
Front
What happens to an electromagnet when the electric current is turned off?
Back
When the electric current is turned off, the electromagnet loses its magnetic field, causing any ferromagnetic materials it was holding (like scrap metal) to fall.
3.
FLASHCARD QUESTION
Front
What are balanced forces?
Back
Balanced forces are forces that are equal in size and opposite in direction, resulting in no change in motion of an object.
4.
FLASHCARD QUESTION
Front
What occurs when forces become unbalanced?
Back
When forces become unbalanced, it can cause an object to start moving or change its motion.
Tags
NGSS.MS-PS2-2
5.
FLASHCARD QUESTION
Front
Give an example of an object that is not made with electromagnets.
Back
Sneakers are an example of an object that is not made with electromagnets.
6.
FLASHCARD QUESTION
Front
What is the role of a battery in an electromagnet?
Back
A battery provides the electric charge necessary to create a magnetic field in an electromagnet.
Tags
NGSS.MS-PS2-3
7.
FLASHCARD QUESTION
Front
How does coiling wire affect the strength of an electromagnet?
Back
Coiling wire increases the strength of an electromagnet because it concentrates the magnetic field lines, enhancing the overall magnetic effect.
Tags
NGSS.MS-PS2-3
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