11QT Static electricity and electric field

Multiple Choice

A negatively charged material has ___________ electrons.

• gained

• lost

Multiple Choice

A positively charged material has __________ electrons

• lost

• gained

Multiple Select

The Law of Conservation of Charge states that charges are neither _________ or _________. SELECT the TWO answers that go in the blank

• cancelled

• created

• acquired

• destroyed

Multiple Choice

Like Charges

• attract

• repel

Multiple Choice

Electric charges that are alike _______ each other.

• Attract
• Repel

Multiple Choice

If an object has more positive than negative charges, its electrical charge is...

• positive

• negative

• neutral or no charge

• opposite

Multiple Choice

If an object has the same number of positive and negative charges, its electrical charge is...

• positive
• negative
• neutral or no charge
• opposite

Multiple Choice

The girl's hair and the comb are attracting  one another.  The hair and the comb have

• opposite charges
• like charges

Multiple Choice

The child's hair is sticking up because.....

• Each hair is positively charged and they are attracting each other.

• Each hair is positively charged and they are repelling each other.

Multiple Choice

What would happen if the t-shirt and the balloon were brought close together?

• They would attract

• They would repel

Multiple Choice

What is the charge on the t-shirt?

• +7

• +3

• -4

• +11

Multiple Choice

What is the charge on the balloon?

• -7

• -3

• +3

• -10

Multiple Choice

I am the negatively charged particle in an atom. I can move freely.  I can be released, shared, or “stolen” from an atom.  Who am I?

• proton
• neutron
• electron

Multiple Choice

Static electricity is:

• electricity flowing in a wire
• the buildup of electric charges on an object
• when protons move between objects

Multiple Choice

Sometimes when you touch a doorknob you get shocked. This is an example of...

• Charging by Friction

• Charging by Conduction

• Charging by Reflection

• Polarization

Multiple Choice

Materials through which electrons move easily__.

• insulator
• conductor

Multiple Choice

If the charge of $$q_1$$  is doubled, what would happen to the force?

• It would double (x2)

• It would quadruple (x4)

• It would half (x1/2)

• It would quarter (x1/4)

Multiple Choice

If the distance between the charges is doubled, what would happen to the force?

• It would double (x2)

• It would quadruple (x4)

• It would half (x1/2)

• It would quarter (x1/4)

Multiple Choice

Electrical forces are...

• Invisible

• Visible

• Not Real

• Dangerous

Multiple Choice

The area of electric force around an electrically charged particle is called an...

• Electric Force

• Electric Field

• Electricity

• Attract and Repel

Multiple Choice

In electrical fields, when a line is pointed inward towards a particle it means the particle is....

• Postitive

• Negative

• Neutral

• Lost

Multiple Choice

In electrical fields, when a line is pointed outward away from a particle it means the particle is....

• Positive

• Negative

• Neutral

• not good at directions.

Multiple Choice

What do we call electricity that builds up on an object?

• Static Electricity

• Current Electricity

• An electrical field

• Shmoovin

Multiple Choice

What do we call electricity that moves from one place to another?

• Static Electricity

• Current Electricity

• Rockin

• A Magnetic Field

Multiple Choice

At which point is the electric field the strongest

• A
• B
• C
• D

Multiple Choice

Q_A and Q_B are two charges creating an electric field. Based on the electric field lines, we can conclude

• Q_A and Q_B are both positive
• Q_A and Q_B are both negative
• Q_A is positive and Q_B is negative
• Q_A is negative and Q_B is positive

Multiple Choice

Which of the following is a true statement about the electric field between the two plates?

• The field is attractive between the plates and uniform in strength

• The field is repulsive between the plates and uniform in strength

• The field is attractive between the plates and strongest near the positive

• The field is repulsive between the plates and strongest near the positive

Multiple Choice

Which diagram correctly shows the electric field around a negative charge?

• A

• B

• they are both positive

Multiple Choice

The electric field surrounding a positively charged object is

• Away from the charge
• Toward the charge

Multiple Choice

An atom of oxygen has 8 protons and 10 electrons, this means the atom is ____________

• positively charged because it has excess electrons

• negatively charged because it has excess electrons

• positively charged because it has a deficiency of electrons

• negatively charged because it has a deficiency of electrons

Multiple Choice

Coulomb's law also says if distance increases, then force

• decreases

• disapears

• destroyed in a heartbeat

• doubles

Multiple Choice

How do electric field lines represent the magnitude of an electric field?

• Length of the line
• With arrows
• Density of lines
• Width of lines

Multiple Choice

In the diagram below, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?

• Right
• Left
• Up 
• Down