Fields and Forces

P.5 (A&C)

Electrical Fields

Multiple Choice

What direction does the electric field ALWAYS flow? (Use the diagram to help you.)

• out from the negative to positive

• out from the positive to the negative

Multiple Choice

Each electron carries with it the fundamental charge that always has a measured value of...

• 9.8 m/s

• 1.6 E -19 C

• 161 C

• 1.61 C

Multiple Choice

An electon charge will always have a fundamental charge that is always...

• Positive (1.6E-19C)

• Negative (-1.6E-19C)

Multiple Choice

An Proton charge will always have a fundamental charge that is always...

• Positive (1.6E-19C)

• Negative (-1.6E-19C)

Multiple Choice

What is the name of the substance that can EASILY transfer an electric charge?

• Conductor

• Insulator

Multiple Choice

What is the name of the substance that DOES NOT transfer an electric charge?

• Conductor

• Insulator

Multiple Choice

Where exactly are free electrons (valence electrons) found in an atom?

• around the nucleus

• electrons outer shell

• in the nucleus

Multiple Choice

What causes these free electrons to move in the first place?

• an imbalance of an electrical charge

• when one object has the same amount of free electrons as another object

Multiple Choice

If an object has an overall negative charge, what does that mean?

• it has too many electrons

• it doesnt have enough electrons

Multiple Choice

If an object has an overall POSITIVE charge, what does that mean?

• it has too many electrons

• it doesn't have enough electrons (Its missing electrons)

Multiple Select

What are the different ways to transfer a charge to another object? (Select all that apply)

• charging by direct contact (like friction)

• charging by polarization (creating an imbalance of charges within a single object)

• induction (creating a net charge without making direct contact)

• Grounding

Multiple Choice

Which object has a stronger electrical field?

• A

• B

• C

Multiple Choice

Where is the electrical field the strongest?

• between the two charges

• on the left and right of the charges

• above and below the charges

Multiple Choice

Which direction do the electrical field lines ALWAYS flow?

• positive to negative

• negative to positive

Multiple Choice

If a positive charge (RC +) was placed in the electrical field, as shown in the picture, which direction will it begin to move?

• up

• down

• right

• left

Multiple Choice

If a positive charge is placed in the electrical field, as shown in this different picture, which direction will it begin to move?

• up

• down

• right

• left

Multiple Choice

What direction will this positive point charge move?

• up, repelled away from the charge ( vertically positive)

• down, attracted towards the charge (vertically negative)

• to the left (horizontally negative)

• to the right (horizontally positive)

Multiple Choice

Why is the point charge moving away from the positive charge?

• because they are repelling since a point charge is normally positive & so they are both positive

• because they are attracted