Bar Magnet

• Directions: Use the magnetic field sensor to measure the strength (B) of the magnetic field at 4 different points around the magnet.
  Question: Record all 4 values

The smaller the B field number, the ​ (a)   the magnetic field.

• weaker
• stronger
• unchanged

The larger the B field number, the ​ (a)   the magnetic field.

• stronger
• weaker
• unchanged

Write a statement about how the distance from the magnet affects the strength of the magnetic field.

Place a compass in 8 different locations around the magnet. Draw the compass’s red pointer (magnetic north) at each spot

Which direction does the compass always point?

• North
• South
• West
• East

What pole of the bar magnet does the compass point to?

• The south pole of the bar magnet
• The west pole of the bar magnet
• The east pole of the bar magnet
• The north pole of the bar magnet

Stay on the "Bar Magnet" tab and turn on "Show Planet Earth."

Draw Earth, labeling its geographic north and south poles.

How is Earth’s magnetic field different from that of the bar magnet?

• Same

• Opposite

Why does a compass always point to Earth’s geographic north pole? Use these key terms in your explanation: opposite, Earth’s geographic poles, Earth’s magnetic poles, north, south.