Unit 2 Magnets Study Guide

How do the magnets appear to be floating here?

• The magnets LIKE poles are facing each other

• The magnets OPPOSITE poles are facing each other

Tags

NGSS.MS-PS2-3

Magnets that are LIKE poles will...

• Attract

• Repel

• Retract

Tags

NGSS.3-PS2-3

Number of Coils Height of Magnet

18 - - - - - - - - - - - - - - - - - - - 3.5 cm

22 - - - - - - - - - - - - - - - - - - - 4.0 cm

25 - - - - - - - - - - - - - - - - - - - 5.5 cm

27 - - - - - - - - - - - - - - - - - - - - ?????

By looking at the trend of this graph if there were 27 coils in the electromagnet what height would the magnets repel to??

• 5.0 cm

• 5.5 cm

• 6.0 cm

• 4.0 cm

As the electric current in the wire INCREASES, the strength of the electromagnet will...

• increase

• decrease

• remain the same

Tags

NGSS.MS-PS2-3

Electromagnet Number of Turns of Wire Paperclips Picked Up

1 - - - - - - - - - - - - 10 - - - - - - - - - - - - - - - - - 5

2 - - - - - - - - - - - - 30 - - - - - - - - - - - - - - - - - 11

3 - - - - - - - - - - - - 50 - - - - - - - - - - - - - - - - - 18

What happens to the strength of the electromagnet as we ADD MORE turns of wire?

• increases

• decreases

• remains the same

Electromagnet Number of Turns of Wire Paperclips Picked Up

1 - - - - - - - - - - - - 10 - - - - - - - - - - - - - - - - - 5

2 - - - - - - - - - - - - 30 - - - - - - - - - - - - - - - - - 11

3 - - - - - - - - - - - - 50 - - - - - - - - - - - - - - - - - 18

What are the magnets strength in order from Strongest to Weakest

• 1, 2, 3

• 2, 1, 3

• 3, 2, 1

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS2-5

How does distance affect the force a magnet has on an object?

• objects closer to magnet will be pulled faster

• objects further away from magnet will be pulled faster

• No difference whether the magent is closer or further

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Like poles (N-N or S-S) will...

• Attract

• Repel

• Reverse

Tags

NGSS.MS-PS2-3

Opposite poles (N-S or S-N) will...

• Attract

• Repel

• Retract

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What are TWO factors that affect the strength of an electromagnet?

• number of coils of wire

• size of the object

• energy or voltage of the battery

Tags

NGSS.MS-PS2-3