Physics_B_061625

Which of the following best describes the conservation of charge during conduction?

• Charge is created when two objects touch.

• Charge is transferred from one object to another, but the total charge remains the same.

• Charge disappears after conduction.

• Both objects become neutral.

When a negatively charged rod is brought near a neutral electroscope without touching it, what process is primarily occurring?

• Conduction

• Induction

• Polarization

• Radiation

If a glass rod is rubbed with silk and becomes positively charged, what happens to the silk?

• It becomes positively charged.

• It remains neutral.

• It becomes negatively charged.

• It loses all charge.

Which device is commonly used to detect the presence of electric charge?

• Thermometer

• Electroscope

• Barometer

• Voltmeter

During polarization, what happens to the charges within a neutral object when a charged object is brought near?

• Charges are transferred to the neutral object.

• Charges within the object rearrange, but the total charge remains zero.

• The object becomes permanently charged.

• The object loses electrons.

A Van de Graaf generator is used to charge a metal sphere. What principle ensures that the total charge in the system is conserved?

• Conservation of mass

• Conservation of charge

• Conservation of energy

• Conservation of momentum

Which of the following materials is commonly used to demonstrate charging by friction?

• Copper wire

• Glass rod and silk

• Aluminum foil

• Plastic cup

When a charged balloon is brought near small pieces of paper, the paper is attracted to the balloon. This is an example of:

• Conduction

• Induction

• Polarization

• Insulation

If a negatively charged rod touches a neutral metal sphere, what will happen to the sphere?

• It will become positively charged.

• It will become negatively charged.

• It will remain neutral.

• It will lose mass.

Which process involves the direct transfer of electrons from one object to another by contact?

• Induction

• Conduction

• Polarization

• Reflection