Electrostatics

What must be the charge of the two particles and how do you know?

• They are both positive, the electric field lines repel each other and are heading out of the charges

• They are both positive, field lines repel each other and are heading toward the charges

• They are both negative, field lines repel each other and are heading out of the charges

• They are both negative, field lines repel each other and are heading toward the charges

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NGSS.HS-PS2-4

How can you determine how strong the electric force a point charge will experience at a certain point in an electric field?

• The total number of electric field lines

• How close together the electric field lines are

• What direction the electric field lines are pointing

• How large the charge at the center is drawn

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How can you make sure that a Van De Graaf generator will prevent you from being shocked and why will that strategy protect you?

• Touch the generator before cranking while touching the ground, this will assure that your protons will deflect the electrons that try to flow into you

• Touch the generator after cranking it for several minutes, this will assure that the electrons have repelled each other before you touch it

• Touch the generator before cranking while touching the ground, this will assure that the electrons will flow through you and into the ground

• Touch the generator before cranking while suspended, this will assure that the electrons will flow through you and into the sky

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NGSS.HS-PS2-4

If you have an electric force of 6 N and double the charge of both charges, what will be resulting force?

• 6 N

• 12 N

• 24 N

• 1.5 N

• 3 N

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NGSS.HS-PS2-4

Which is NOT a similarity between gravitational force and electrical force?

• They both depend on the distance

• The both involve two objects (either charged or with mass)

• They are both repulsive and attractive

• They both significantly decrease with distance

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NGSS.HS-PS2-4

Which is the unit for charge?

• M x m²/s²

• C

• k

• Amps

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NGSS.HS-PS2-4

What causes a charge to be built on a glass rod rubbed by cheese cloth?

• Electrons being transferred from the cloth to the rod

• Electrons being transferred from the rod to the cloth

• Protons being transferred from the cloth to the rod

• Protons being transferred from the rod to the cloth

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If the distance between two charged particles is quadrupled (4 times larger), what will happen to the force between them?

• It becomes four times larger

• It becomes sixteen times larger

• It becomes four times smaller

• It becomes sixteen times smaller

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NGSS.HS-PS2-4

Why did the aluminum leaves separate when the charged glass rod was brought near the metal rod?

• The aluminum picked up a temporary positive charge

• The aluminum picked up a temporary negative charge

• The aluminum picked up a permanent positive charge

• The aluminum picked up a permanent negative charge

Tags

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NGSS.HS-PS3-5

All charged particles generate

• electric fields

• force fields

• gravitational fields

• power fields

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