Static Electricity Review

An objective with a negative charge would _______ an object with a neutral charge

• Attract
• Repel
• Do nothing

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Two objects with negative charges would

• Attract
• Repel
• Do nothing

Tags

NGSS.HS-PS2-4

Which word best describes this picture?

• Charging by Friction

• Charging by Conduction

• Charging by Telekinesis

• Polarization

If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that

• friction destroyed electrons in the rod.

• electrons have moved out of the rod.

• protons have moved to the rod.

• electrons have moved to the rod.

Tags

NGSS.HS-PS1-3

If the distance between two charged objects is reduced by half, what happens to the force?

• Quadruples

• Doubles

• Triples

• Reduces by half

Tags

NGSS.HS-PS2-4

An electrostatic force of 2 X 10² N is exerted on a charge of 4 C at point P in an electric field. The magnitude of the electric field intensity at P is

• 8 X 10² N/C
• 5 N/C
• 2 X 10^-2 N/C
• 50 N/C

Tags

NGSS.HS-PS2-4

A positive charge of 4.0x10^-6 C exerts an attractive force of 8.0 N on an unknown charge 20.0 cm away. The unknown charge is

• $+8.9\times10^{-6}$ C

• $-8.9\times10^{-6}$ C
  

• $+4\times10^{-6}$ C

• $-4\times10^{-6}$ C
  

Tags

NGSS.HS-PS2-4

How much charge does one electron have?

•  $-1.60×10^{-19}$ C

•  $+1.60×10^{-19}$ C

•  $-6.25\times10^{18}$ C

•  $+6.25\times10^{18}$ C

The electric field lines for a positive charge is always directed away from the charge. True or False?

• True

• False

Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ____ and object B is ____.

• +,+
• +,-
• -,+
• -,-

Tags

NGSS.HS-PS3-5