5.1 Alternating and direct current

An oscilloscope shows the current flow above what type of current is it showing?

• DC

• AC

• Rectified Current

• Non rectified current

Tags

NGSS.HS-PS4-1

AC stands for ___.

• Alternating Current
• Attraction Connections

Current that is used by most household appliances

• AC
• DC
• BC
• AC/DC

Current from a battery is 

• AC
• DC
• BC
• AC/DC

The device that lowers our AC voltage so we can use it in our homes

• Transformer

• motor

• diode

• generator

Step-up transformers...

• improve the efficiency of the national grid
• reduce the voltage to a safe level for the home
• both 

Step-down transformers...

• improve the efficiency of the national grid
• reduce the voltage to a safe level for the home
• both 

The type of current where charges flow in one direction

• Direct Current
• Alternating Current
• Electron Flow
• Voltage

The type of current where flow of charge changes direction

• Alternating Current

• Direct Current

• Voltage

• Switchback Current

Power

• power = potential difference

• power = potential difference × current

• power = potential difference / current