Exploring Charge and Current in Electricity

What part of the atom has a positive charge?

• Proton

• Atom

• Neutron

• Electron

What happens when a negatively charged comb is placed near a stream of water?

• Water repels

• Water freezes

• Water evaporates

• Water is attracted

What does it mean if an object is electrically charged?

• It is insulated

• It has an imbalance of electrons

• It is magnetic

• It is at high temperature

How can electrons move between materials?

• Through sound waves

• Through light exposure

• Through physical contact

• Through heat transfer

Which materials are generally good conductors of electricity?

• Gases

• Metals

• Woods

• Plastics

What is the primary function of a battery in an electrical circuit?

• To block current

• To store data

• To emit light

• To create a flow of electrons

What causes electrons to flow from one side of the battery to the other?

• Physical shaking

• Temperature change

• Chemical reaction

• Magnetic field

What unit is used to measure the flow of electrons?

• Watts

• Volts

• Ohms

• Amperes

What is the significance of the coulomb in electrical measurements?

• It measures resistance

• It measures voltage

• It measures power

• It measures the batch of electrons

What is the relationship between amperes and coulombs?

• Coulombs convert to amperes using a chemical formula

• Amperes measure force, coulombs measure energy

• Amperes are a type of coulomb

• One ampere is one coulomb per second