Openscied 8.3 lesson 6 magnet

What is a magnetic field?

• A magnetic field is a type of weather phenomenon

• A magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.

• A magnetic field is a type of cooking technique

• A magnetic field is a type of musical instrument

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Describe the concept of magnetic force.

• Magnetic force is the force exerted by electricity on magnetic materials.

• Magnetic force is the force exerted by friction on magnetic materials.

• Magnetic force is the force exerted by gravity on magnetic materials.

• Magnetic force is the force exerted between magnets or between a magnet and a magnetic material.

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What are magnetic poles?

• Regions on a magnet where the magnetic force is concentrated.

• Regions on a magnet where the magnetic force is dispersed

• Areas on a magnet where there is no magnetic force

• Points where magnets repel each other

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Explain the behavior of magnetic materials in the presence of a magnetic field.

• Magnetic materials align their magnetic domains with the external magnetic field, exhibiting magnetic properties like attraction or repulsion.

• Magnetic materials create their own magnetic field opposite to the external field, canceling out the effects.

• Magnetic materials repel the external magnetic field, causing them to move away from it.

• Magnetic materials absorb the magnetic field, rendering them non-magnetic.

How does the Earth's magnetic field affect compass needles?

• Compass needles repel Earth's magnetic field, causing them to point in random directions.

• Compass needles align with Earth's magnetic field lines, pointing towards the magnetic South Pole.

• Earth's magnetic field has no effect on compass needles.

• Compass needles align with Earth's gravitational field, not the magnetic field.

How do magnetic fields interact with each other?

• By changing colors

• By emitting sound waves

• Based on the principles of attraction and repulsion.

• Through chemical reactions

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NGSS.MS-PS2-5

Discuss the relationship between magnetic force and distance.

• Magnetic force increases as distance increases linearly.

• Magnetic force decreases as distance decreases.

• Magnetic force decreases as distance increases.

• Magnetic force remains constant regardless of distance.

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What are some common examples of magnetic materials?

• gold

• silver

• iron, nickel, cobalt, alloys

• copper

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How can you determine the direction of a magnetic field?

• Consult a horoscope

• Ask a magic eight ball

• Lick your finger and hold it up in the air

• Use a compass needle

Explain the concept of magnetic field lines.

• Magnetic field lines are static and do not change over time.

• Magnetic field lines are only visible under a microscope.

• Magnetic field lines are physical ropes that emit magnetic energy.

• Magnetic field lines are imaginary lines used to represent the direction and strength of a magnetic field.