Question

identifying electric fields
which object represents a negatively charged particle?
which object represents a positively charged molecule?
which object represents an uncharged molecule?
which object will not move when in an electric field?

Explanation:

• Negatively charged particle: Electric field lines point towards a negative charge. In the given figures, object \( B \) has field lines pointing towards it.
• Positively charged molecule: Electric field lines point away from a positive charge. Object \( A \) has field lines pointing away from it.
• Uncharged molecule: An uncharged molecule has no electric field lines associated with it (since there is no charge to create an electric field). Object \( C \) has no field lines.
• Object that will not move in an electric field: An uncharged object does not experience a force in an electric field (\( F = qE \), and if \( q = 0 \), \( F=0 \)). So, the uncharged object (\( C \)) will not move.

Answer:

• Negatively charged particle: \( B \)
• Positively charged molecule: \( A \)
• Uncharged molecule: \( C \)
• Object that will not move in an electric field: \( C \)