How can you INCREASE the strength of an electromagnet?

Decrease the amount of electricity

Are the magnetic field lines in the picture correct?

Yes, because they point from north to south.

No, because they point from north to south (they're supposed to go the other way).

Yes, because the North pole is on the left in all pictures.

No, because the North pole is on the left in all pictures (it's supposed to be on the right).

How are electromagnets different from magnets?

you can turn an electromagnet on/off

magnets have a North and South pole

If you cut a bar magnet in half, each half would...

have it's own north and south poles

Which statement is true about both magnetic and electric fields?

Like charges attract each other

If you have both the balloon and pvc wand with a build up of negative charges. How can you decrease the potential energy of the balloon?

Rub both with wool more vigorous

Cameron and Morgan are each holding a bar magnet with opposite poles facing each other. They walk in opposite directions until they stop feeling their magnet pull towards the other one. What can they conclude about the distance between them when they stop feeling their magnets pull?

They are outside the magnetic field of their magnets.

The distance made the magnets' force stronger.

The magnetic fields are far enough apart to change direction.

The magnetic field was weaker when they were close.

A student claims that Earth has a magnetic field. Which evidence would best support the student's claim?

The student turns in all directions with a compass and the needle always points north.

The student creates a working circuit that illuminates a bulb using wire and a battery.

The student receives a shock after walking across the carpet and touching a doorknob.

The student rolls a ball down a large hill and the ball comes to a complete stop at the bottom

Ivan has a magnet and four different objects. He places the magnet near each of the objects and records whether each object attracts, repels, or has no reaction. Which question is Ivan's experiment designed to answer?

Which objects will respond to a magnetic force?

Which type of magnet will apply force on an object?

How can magnetic force affect an object's shape?

How does an object's gravity affect a magnet?

If Earth had twice the mass it has now, how would the gravitational force between it and the Sun change?

The gravitational force would be twice as much as it is now.

The gravitational force would be four times as much as it is now.

The gravitational force would be half as much as it is now.

The gravitational force would be the same as it is now.

Two new planets are discovered, planet X and planet Y. The planets have identical volumes, but the mass of planet X is two times greater than the mass of planet Y. If two identical space ships land on each planet, which of the following will be true?

The weight of the space ship on planet X will be greater than the weight of the space ship on planet Y.

The mass of the space ship on planet Y will be greater than the mass of the space ship on planet X.

The weight of the space ship on planet Y will be greater than the weight of the space ship on planet X.

The mass of the space ship on planet X will be greater than the mass of the space ship on planet Y.

A magnet can hold a piece of paper to the door of a refrigerator. How does the magnet stick without touching the door?

The magnetic force of the magnet can act at a distance.

Gravity attracts the magnet to the door.

The magnet induces a magnetic field in the paper.

Atoms from the magnet pass through the paper and touch the door.

A student claims that the gravitational force between two objects depends upon the mass of the objects and the distance between them. Which argument best supports the student's claim?

If the distance between two objects increases, the gravitational force between the objects will decrease.

If the distance between two objects decreases, the gravitational force between the objects will disappear.

If the distance between two objects increases, the gravitational force between the objects will increase.

If the distance between two objects decreases, the gravitational force between the objects will not change.

Why doesn’t the gravitational pull between the Sun and the planets cause the planets to fall into the Sun?

The speed of the planets flings them out.

The background stars pull back on the planets.

The Sun’s magnetic fields are pushing out.

The Sun’s rotation pushes the planets out.

Gravitational, Magnetic, Electrical Fields

Authored by Charles Martinez

Physics

12th Grade

NGSS covered

Gravitational, Magnetic, Electrical Fields

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47 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A compass points north because of the Earth's ________ field?

electrical

gravitational

magnetic

static

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the area around an object that can attract or repel other objects in that area?

Magnetic Field

Magnetic Fission

Force

Friction

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Magnetic fields are created by _______ electric charges.

only positive

only negative

moving

static

Tags

NGSS.HS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these metals is NOT attracted to a magnet?

Aluminum

Cobalt

Iron

Nickel

Tags

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Electric fields are created by _____ electric charges.

only positive

only negative

moving

static

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of charge would be attracted to a positively charged object?

Only positive

Only negative

Both

Neither

Tags

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

DECREASING which factor would INCREASE the force on a paper clip by a permanent magnet?

Current

Distance

Magnet size

Magnet strength

Tags

NGSS.MS-PS2-5

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Gravitational, Magnetic, Electrical Fields

A compass points north because of the Earth's ________ field?

What is the area around an object that can attract or repel other objects in that area?

Magnetic fields are created by _______ electric charges.

Which of these metals is NOT attracted to a magnet?

Electric fields are created by _____ electric charges.

Which type of charge would be attracted to a positively charged object?

DECREASING which factor would INCREASE the force on a paper clip by a permanent magnet?

Electric fields are usually created when _____ are transferred between objects.

How can you INCREASE the strength of an electromagnet?

Fields allow objects to exert _____ on each other without touching.

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