What did sailors use slivers of magnetic rocks for?

• To create images of organs inside the body

• To guide them on their voyages

• To hold data on the backs of credit cards

• To produce colorful auroras in the night sky

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What did early sailors use magnets for?

• To guide electrons to the screens of televisions and computer monitors

• To create strips that hold data on the backs of credit cards

• To find their direction on the open sea

• To produce colorful auroras in the night sky

What is the force between two north poles or two south poles of magnets?

• Repel

• Attract

• Push

• Pull

Tags

NGSS.MS-PS2-3

What is the force between a north and a south pole of magnets?

• Repel

• Attract

• Push

• Pull

Tags

NGSS.MS-PS2-3

What is a magnetic field?

• A visible pattern of lines looping from one pole of a magnet to the opposite pole

• A force that repels or attracts through empty space

• A pattern of lines that push away from each other

• A force that pulls or pushes certain metals

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Where is Earth's north magnetic pole located?

• At the north geographic pole

• Beyond the Queen Elizabeth Islands of northern Canada

• At the south geographic pole

• In Magnesia, Asia Minor

What is the difference between true north and magnetic north?

• True north is located beyond the Queen Elizabeth Islands of northern Canada

• Magnetic north is located at the north geographic pole

• True north is the direction indicated by a compass needle

• Magnetic north is the direction indicated by a compass needle

What is the magnetic dip angle?

• The amount that the field at a place points up or down

• The amount that the field at a place points north or south

• The amount that the field at a place points east or west

• The amount that the field at a place points toward or away from the Earth

What did James Clerk Maxwell discover about the relationship between electricity and magnetism?

• They are two separate forces

• They are unrelated to each other

• They are one force called electromagnetism

• They are forces that cancel each other out

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What creates the magnetism of a substance?

• Protons in the nucleus of the atom

• Electrons orbiting the nucleus of the atom

• Neutrons in the nucleus of the atom

• Positively charged particles in the atom

Tags

NGSS.MS-PS2-3