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Electrical Induction

Authored by Lisa Thompson

Science

8th Grade

NGSS covered

Electrical Induction
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A balloon has a negative charge.  The glass rod has a positive charge.  What will happen when the glass rod is brought near the balloon?

The balloon will be attracted to the rod

The balloon will be repelled by the rod

The balloon will remain in place

The balloon will spin in circles

Tags

NGSS.HS-PS2-4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Two small hollow metal spheres hung on insulating threads attract one another as shown. It is known that a positively charged rod will attract sphere A. Which statements can be correctly concluded about the charge on the spheres?

A has a positive charge

B has a negative charge

A and B have opposite charges

A is neutral

Tags

NGSS.HS-PS3-5

NGSS.HS-PS2-4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?

positive charge.

negative charge.

neutral charge

charge at all

Tags

NGSS.MS-PS2-3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Voltage can be induced in a wire by

moving the wire near a magnet.

moving a magnet near the wire.

changing the current in a nearby wire.

all of these

Tags

NGSS.HS-PS2-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What would happen if I move a bar magnet in and out of a coil of copper wire?

Electric current would disappear 

The magnet would explode 

Electric current will flow through the wire

It would produce a gravitational field

Tags

NGSS.HS-PS2-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If a magnet is pushed into a coil, voltage is induced across the coil. If the same magnet is pushed into a coil with twice the number of loops,

one-half as much voltage is induced.

the same voltage is induced.

twice as much voltage is induced.

four times as much voltage is induced.

Tags

NGSS.HS-PS2-5

7.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Which pairs of materials could be used to create electromagnetic induction?

Coiled wire, a magnet

Coiled wire, a battery

A magnet, a battery

None of the above

Tags

NGSS.HS-PS2-5

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