7.1.1 Magnetic Fields

• Magnets create magnetic fields around them.


  True
• Magnetic fields can be represented using field line diagrams.
• Match the property of magnetic field lines with its description:

  Start ↔️ North pole of the magnet

  End ↔️ South pole of the magnet

  Direction ↔️ Always from North to South

  Density ↔️ Represents field strength
• The density of magnetic field lines is higher near the poles of a magnet.


  True
• Where do magnetic field lines start outside a magnet?

  North pole
• What is the direction of magnetic field lines outside a magnet?

  North to South
• Where do magnetic field lines end outside a magnet?

  South pole
• Magnetic field lines are closer together where the magnetic field is stronger.


  True
• Magnetic field lines always point from the North pole to the South
• Arrange the steps of how magnetic field lines behave around a bar magnet.

  1️⃣ Originate from the North pole

  2️⃣ Curve around the magnet

  3️⃣ Terminate at the South pole
• What do magnets create around them?

  Magnetic fields
• Match the properties of magnetic field lines with their descriptions:

  Start ↔️ North pole of the magnet

  End ↔️ South pole of the magnet

  Direction ↔️ North to South outside the magnet

  Density ↔️ Represents the strength of the magnetic field
• Magnetic field lines end at the South
• What is the direction of magnetic field lines outside a magnet?

  North to South
• What does the density of magnetic field lines represent?

  Field strength
• Magnetic field lines always point from South to North outside a magnet.

  False
• What are magnetic fields regions around?

  Magnet or electric current
• Magnetic field lines always point from North to South outside the magnet.


  True
• Magnets create invisible areas called magnetic fields
• What are magnetic field lines diagrams used to represent?

  Direction and strength
• Magnetic flux is a measure of the amount of magnetic field passing through a given area
• Magnetic flux is measured in webers (Wb).


  True
• What is the range of Earth's magnetic field strength in microtesla?

  25 to 65 μT
• Magnetic fields are regions around a magnet or an electric current where magnetic forces can be detected.
• What is the direction of magnetic field lines outside a magnet?

  North to South
• Magnetic flux measures the total number of magnetic field lines passing through a surface.


  True
• What does the density of magnetic field lines represent?

  Field strength
• The magnetic field is strongest near the poles of a magnet.
• Match the property of magnetic field lines with its description:

  Direction ↔️ Always from North to South

  Start ↔️ North pole of the magnet

  End ↔️ South pole of the magnet
• Magnetic field lines curve around a magnet from the North to the South pole.


  True
• The density of magnetic field lines represents the strength of the magnetic field.
• What are magnetic fields regions around?

  Magnets or electric currents
• The density of magnetic field lines represents the strength of the magnetic field.

  True
• Outside a magnet, magnetic field lines always point from North to South
• What does the density of magnetic field lines indicate?

  Strength of the field
• Magnetic field lines originate from the South pole of a magnet.

  False
• Arrange the properties of magnetic field lines in a diagram.

  1️⃣ Lines start at the North pole

  2️⃣ Lines curve around the magnet

  3️⃣ Lines end at the South pole
• Magnetic field lines start at the North
• What are magnetic fields represented by?

  Magnetic field lines
• Magnetic field lines start at the North