Static Electricity and Electric Charge Concepts

What phenomenon is responsible for the mild electric shocks sometimes experienced during everyday activities like handshakes or taking off a jumper?

• Current electricity

• Magnetism

• Electrostatics

• Gravity

How do insulating materials like wool, acrylic, or plastic become charged with static electricity?

• By heating them

• By rubbing them together

• By exposing them to light

• By cooling them

What are electrons, in the context of electric charge?

• Positively charged particles in the nucleus of an atom

• Neutral particles found in the nucleus of an atom

• Negatively charged particles that orbit the nucleus of an atom

• Particles that carry no electric charge

When a balloon is rubbed against a sleeve, and electrons move from the sleeve to the balloon, what are the resulting charges on the balloon and the sleeve?

• Both become positively charged

• Both become negatively charged

• The balloon becomes negatively charged and the sleeve becomes positively charged

• The balloon becomes positively charged and the sleeve becomes negatively charged

What is the primary difference in how conductors and insulators handle electric charge?

• Conductors attract charge, while insulators repel charge

• Conductors allow charge to spread out and dissipate, while insulators hold the charge in place

• Insulators allow charge to spread out and dissipate, while conductors hold the charge in place

• Conductors generate charge, while insulators absorb charge

What type of force occurs when two objects with the same type of electric charge are brought close together?

• An attractive force

• A repulsive force

• No force

• A magnetic force

What is the interaction between a positively charged object and a negatively charged object?

• They repel each other

• They attract each other

• They have no interaction

• They neutralize each other without interaction

How can one definitively determine if an object is electrically charged?

• By observing if it attracts an uncharged object

• By observing if it repels a known charged object

• By touching it to see if it sparks

• By measuring its temperature

What is a potential danger of static electricity, especially in environments with flammable materials like petrol stations?

• It can cause objects to become extremely cold

• It can generate a magnetic field

• It can create a spark leading to a fire

• It can cause materials to become brittle

How does an electrostatic precipitator help reduce pollution from power stations?

• It cools down the smoke to condense particles

• It converts smoke into harmless gases through chemical reactions

• It uses magnetism to separate particles from the smoke

• It charges smoke particles to attract them to collecting plates