Module 6: Electricity and Magnetism

Reorder

Rank the objects from STRONGEST magnetic field to WEAKEST magnetic field.

• Electromagnet with 3 batteries and 5 loops

• Solenoid with 1 battery and 5 loops

• Electromagnet with 1 battery and 5 loops

• Electromagnet with no current and 1 loop

1

2

3

4

• 1
• 2
• 3
• 4

Multiple Choice

What did Thales of Miletus discover about static electricity in 500 B.C.?

• It can be generated by rubbing amber with silk or fur

• It is caused by lightning

• It can be stored in batteries

• It is a form of magnetism

Multiple Choice

What did Benjamin Franklin's kite experiment prove about lightning and electricity?

• They are unrelated

• They are the same thing

• They are opposites

• They are both forms of energy

Categorize

Options (7)

Positive Charge

No Charge

Negative Charge

Orbit Nucleus

Along with protons, determines the atom’s mass.

Determines the atom’s elemental identity

Determines what chemical bonds the atom will form.

Identify each statement as describing a proton (p), neutron (n), or electron (e). - Positively charged. - Negatively charged. - No charge. - Orbit the nucleus. - Determines the atom’s elemental identity. - Determines what chemical bonds the atom will form. - Along with protons, determines the atom’s mass.

Proton

Neutron

Electron

Multiple Choice

In the diagram above, a positive test charge is located between two charged spheres, A and B. Sphere A has a charge of +2q and is located 0.2 meter from the test charge. Sphere B has a charge of -2q and is located 0.1 meter from the test charge. If the magnitude of the force on the test charge due to sphere A is F, what is the magnitude of the force on the test charge due to

sphere B?

• $$2F$$

• $$\frac{F}{2}$$

• $$\frac{F}{4}$$

• $$4F$$

Multiple Choice

What do the lines in the diagram represent in terms of electric fields?

• Weaker force

• Stronger force

• No force

• Constant force

Multiple Choice

In Static Electricity, how do the charges behave?

• They flow

• They build up and stay

• They disappear

• They change

Multiple Choice

Figure shows a student after rubbing a balloon on his hair.The balloon and hair have become charged. Describe the force that acts on the student’s hair.

• non-contact force, attraction between hair and balloon

• contact force, attraction between hair and balloon

• non-contact force, repulsion between hair and balloon

Multiple Choice

What is the process called when objects tend toward equilibrium and lose their static charge?

• Static Equilibrium

• Static Discharge

• Static Electricity

• Static Friction

Multiple Choice

What is the relationship between voltage and current flow in an electrical circuit?

• Voltage causes current to flow

• Voltage has no effect on current

• Current causes voltage to flow

• Voltage is independent of current

Multiple Choice

What is the relationship between the diameter of a pipe and the electrical current flowing through it?

• Larger diameter allows more current

• Smaller diameter allows more current

• Diameter has no effect on current

• Current is independent of pipe length

Multiple Choice

The resistance of the light bulb is 15 ohms. If the battery was replaced by one with double the voltage (with no other replacements), then the light bulb resistance must _____.

• Increase to 30 ohms

• Not change

• Decrease to 7.5 ohms

• No way to tell

Open Ended

Use the diagram of the series circuit to answer the question.

If another battery is added to the circuit, how will the brightness of the bulbs change?

Multiple Choice

What will happen if one light bulb is removed from this circuit (without the wires being reconnected)?

• The other bulbs will go out since this is a parallel circuit.

• The other bulbs will stay on since this is a parallel circuit.

• The other bulbs will get dimmer since this is a series circuit.

• The other bulbs will stay on since this is a series circuit.

Multiple Choice

The voltmeter is at 0 in this image. How would you manipulate the experiment to create electricity (measured in volts)?

• Flip the magnet around so the North pole is facing out
• Move the magnet back and forth
• Take the magnet out
• Add more coils around the paper cylinder

Multiple Choice

What is the origin of the name "magnet"?

• It comes from the word "magnetite"

• It is named after a famous scientist

• It refers to a type of metal

• It is derived from the word "lodestone"

Multiple Choice

What happens to the poles of a magnet when it is snapped in half?

• They remain the same

• They become the same poles

• They become the opposite poles

• They disappear

Multiple Choice

What happens to the magnetic forces when domains are randomly arranged?

• They create a strong magnetic effect

• They cancel each other out

• They align in one direction

• They become unmagnetized

Multiple Choice

What are the two types of magnets mentioned in the text?

• Temporary magnets

• Permanent magnets

• Electromagnets

• Superconducting magnets

Multiple Choice

What is the angle between true north and magnetic north called?

• Magnetic declination

• Geographic declination

• True declination

• North declination

Multiple Choice

What can you do to make electromagnets stronger?

• Increase number of coils of wire.

• Increase number of batteries used.

• Both A and B.

• Neither A nor B.

Multiple Choice

While electric current is flowing through a wire, what surrounds the wire?

• a magnetic field
• a glowing light
• neutrons
• protons

Multiple Choice

Which of the following describes a motor?

• It creates mechanical energy.

• It doesn't need an electrical source to function.

• It doesn't follow the Law of Conservation of Energy.

• It converts electrical energy into mechanical energy.

Multiple Choice

What must the student do in the picture, in order to induce electricity and move the the galvonometer

• nothing

• move the magnet

• add more loops of wire

• unplug the galvnonmeter

Multiple Choice

If a transformer reduces voltage, it is called a....................... transformer.

• step left

• step right

• step up

• step down

Multiple Choice

The transformer is a device used to .......... the value of a voltage.

• steady

• resist

• change

• anchor

Multiple Choice

Ratio of voltages is equal to ratio of _______________________.

• number of iron sheets in core

• number of coil

• number of turns in coil

• number of electromagnetic

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident