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Which of the following is true about magnetism and electrici…

Which of the following is true about magnetism and electricity?

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In ferromagnetic materials, smaller groups of atoms band tog…

In ferromagnetic materials, smaller groups of atoms band together into areas called …

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What effect does the needle being pushed in different direct…

What effect does the needle being pushed in different directions by the grooves as the record spins have?

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What is the difference between a magnet and being magnetic?

What is the difference between a magnet and being magnetic?

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Grasshoppers make sounds by rubbing their wings together. Th…

Grasshoppers make sounds by rubbing their wings together. They can also make sounds by popping their wings which causes their veins to stiffen. Which of the following comparisons of the two methods grasshoppers use to make sounds are true?

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The wavy structure of the grooves causes the needle to be pu…

The wavy structure of the grooves causes the needle to be pushed in different directions as the record spins. 

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How does the structure of the record result in different sou…

How does the structure of the record result in different sounds being produced?

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What property of this wave is represented by the letter “A”

What property of this wave is represented by the letter “A”

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Which of the following is true about the motion of the objec…

Which of the following is true about the motion of the objects?

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When we dropped a rock onto the table with a laser beam (dot…

When we dropped a rock onto the table with a laser beam (dot) bouncing off of a mirror on the table, the dot that showed up on the wall or ceiling but did not move because solid objects cannot vibrate.

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