Magnetism 7.1.3

What is a magnetic field?

• A magnetic field is a type of cooking technique

• A magnetic field is a type of musical instrument

• 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.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

How are magnetic fields created?

• Magnetic fields are created by sound waves.

• Moving electric charges create magnetic fields.

• Magnetic fields are created by gravitational forces.

• Magnetic fields are created by static electric charges.

Tags

NGSS.MS-PS2-3

What is electromagnetism?

• Branch of physics dealing with interactions between electrically charged particles and magnetic fields.

• Investigation of marine life

• Analysis of geological formations

• Study of plant biology

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Explain the concept of magnetic poles.

• Magnetic poles are determined by the color of the magnet.

• There is only one type of magnetic pole, known as the neutral pole.

• Magnetic poles are regions on a magnet where the magnetic force is weak.

• Magnetic poles are regions on a magnet where the magnetic force is concentrated. There are two types of poles: North and South. Like poles repel each other, while opposite poles attract each other.

What are the two types of magnetic poles?

• Top pole and Bottom pole

• East pole and West pole

• Positive pole and Negative pole

• North pole and South pole

What is the difference between a north pole and a south pole?

• The north pole is warmer than the south pole.

• The north pole is located in the Southern Hemisphere.

• The south pole has a higher population density than the north pole.

• The main difference is the orientation of the Earth's magnetic field lines.

How do like poles and unlike poles interact?

• Like poles repel, unlike poles attract

• Unlike poles repel, unlike poles repel

• Like poles attract, like poles attract

• Like poles attract, unlike poles repel

Tags

NGSS.MS-PS2-3

What is magnetic force?

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

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

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

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

Tags

NGSS.MS-PS2-3

Describe the factors that affect the strength of magnetic force.

• Temperature, humidity, pressure

• Color of magnets, size of magnets, shape of magnets

• Distance between magnets, orientation of magnets, material of magnets, presence of interfering magnetic fields

• Time of day, geographic location, magnetic field strength

Tags

NGSS.MS-PS2-3

How is the direction of a magnetic field represented?

• Lines of force flowing from north to south outside the magnet and from south to north inside the magnet.

• Magnetic fields are represented by solid lines connecting the north and south poles of a magnet.

• The direction of a magnetic field is shown by dotted lines surrounding the magnet.

• Lines of force flowing from east to west outside the magnet and from west to east inside the magnet.