Electricity Regents

What does it mean when the electric field lines are close together?

• the field is positive
• the field is negative
• The field is strong
• the field is weak

Tags

NGSS.HS-PS2-4

The law of conservation of charge states that...

• all atoms have more protons than electrons
• only protons can be rubbed off of an atom
• charge cannot be created or destroyed
• charge cannot be transferred 

The electrostatic force between two charges located 2 meters apart is 0.10 N.  What will the force be between these charges when they are located 1 meter apart?

• 0.40 N
• 0.20 N
• 0.10 N
• 0.05 N

Tags

NGSS.HS-PS2-4

What is it called when an object gains a charge when touched by a charged object?

• Induction
• ESD
• Conduction
• Conducting path

How is the electric force between two charges affected when both of the charges are doubled?

• four times as much
• two times as much
• half as much
• one quarter as much

Tags

NGSS.HS-PS2-4

The elementary charge in nature is equal to ..........

• 1.6x10^-16C
• 1.6x10^-19C
• 1.9x10^-16C
• 1.9x10^-19C

An .......... is a device used to check whether an object is charged or not.

• Chargescope
• Electroscope
• Electronscope
• Charger

Two similar metal spheres, A and B, have charges of +2.0 x 10^-6 coulomb and +1.0 x 10^-6 coulomb, respectively. The magnitude of the electrostatic force on A due to B is 4.0N newtons. What is the magnitude of the electrostatic force on B due to A?

• 2.0N

• 4.0N

• 8.0N

• 1.0N

Tags

NGSS.HS-PS2-4

2 charges feel a force of 40 N. if we cut the distance between them in half, what is the new force they feel

• 20

• 80

• 160

• 10

Tags

NGSS.HS-PS2-4

When an object gains electrons it becomes __________

• Neutral

• Positively charged

• Negatively charged