Electric Discharge

Lightning is _____.

• a buildup of neutrons
• harmless
• a high-voltage electric current
• a large discharge of static electricity

Tags

NGSS.HS-PS4-3

Which is true about lightning in a thunderstorm?

• Water droplets and ice create friction in the cloud, giving the cloud an unbalanced charge.

• Lightning rises from the ground into the cloud, releasing positive charges into the cloud.

• Lightning is only created in the northern hemisphere. In the southern hemisphere it is called bightning.

Tags

NGSS.MS-ESS3-2

What best describes the way a Vann de Graff machine shocks the people standing close by?

• Negative charges build up in the Van de Graff dome and jump out into a person, looking for a positive charge to pair with.

• Positive charges build up in the Van de Graff dome and jump out into the person, looking for a negative charge to pair with.

• Electricity from the wall flows in a current through the Van de Graff and into the person standing close.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Where does the negative charge go in a storm cloud?

• near the bottom of the storm cloud

• near the top of the storm cloud

• evenly throughout the storm cloud

The bottom roller and top roller on a Van de Graff generator are made of the same plastic.

• True

• False