Science study guide 2

What movement can be observed if two magnets Attract, Repel?

Pulling force, pushing force.

All magnets are

Dipolar

Without a compass, we need iron ___ or a computer simulation to help us visualize magnetic fields.

fillings

How do the directions of the forces in the field around a magnet challenge?

he direction of magnetic force changes from pushing (repel) with same poles to pulling (attract) with opposite poles, with invisible "field lines" showing the path. They always go out of the north pole and into the south pole, looping around to show the direction, like tiny arrows pointing away from north and towards south.

How would you describe the shape of the magnetic field around the magnet?

Continous, closed loop that emerge from the North Pole, curve outwards and around to the South Pole.

What magnetic poles are facing each other based on the magnetic field lines below?

See diagrams below

How is the Earth like a magnet?

An iron inner core and spinning outer core made of liquid and nickel creates an invisible magnetic field, like a huge bar magnet, with a North and South Pole that guides compasses, protects us from the Sun’s harmful rays and helps some migrating animals navigate where they are going.

Draw the 8 compass needle positions based on the magnet below.

The North end of a compass needle points toward the South Pole of the magnet.

What would a compass needle do next to a South facing magnet.

Red needle points to the South Pole.

What would a compass needle do next to a North facing magnet?

Red needle points away from the North Pole alliigning with the magnetic field.

Graphing Practice: complete the graph below to identify the relationship

Title: How Distance Affects Magnetic Field Strength.