Ch 21-23 Warm-Up

When a positive charge moves along the direction of an electric field, its potential energy ________.

• increases

• decreases

• stays the same

Tags

NGSS.HS-PS3-5

When a negative charge moves along the direction of an electric field, its potential energy ________.

• increases

• decreases

• stays the same

Tags

NGSS.HS-PS3-2

When a positive charge moves along an equipotential line, its potential energy ________

• increases

• decreases

• stays the same

The change in electric potential energy (aka work on the system) can be written by which two equations:

Tags

NGSS.HS-PS2-4

In a conductor, the electric potential is _____ and the electric field is _______

• zero; zero

• zero; constant

• constant; constant

• constant; zero

A positively charged object is attracted to another object. What could that object be? (pick all that apply)

• A neutral conductor

• A neutral insulator

• A positively charged object

• A negatively charged object

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Which of the following correctly shows the dot product operation using trigonometry?

• A · B = |A| |B| sin(θ)
• A · B = (|A| + |B|) sin(θ)

• A · B = |A| |B| cos(θ)
• A · B = (|A| - |B|) cos(θ)

The electric potential due to a point charge is

Tags

NGSS.HS-PS2-4

The electric potential energy due to a point charge is

Tags

NGSS.HS-PS2-4

Charging by Induction occurs when....

• two charged objects touch each other causing charges to move

• electrons are rubbed off one neutral object to another neutral object

• a neutral object is placed in a magnetic field.

• a charged object causes a charge separation in a neutral conductor without touching