Structures of Matter and Electric Charge

Questions and Answers

Electric charge has no effect on objects.

Like charges repel each other. (correct)

Like charges attract each other.

Unlike charges repel each other.

As the flow of protons through a conductor.

As the movement of electrons from negative to positive.

As the flow of electrons from positive to negative.

As the movement of charge from positive to negative. (correct)

It cannot conduct electric current.

Electrons are bound tightly to their own atom.

It has a positive charge.

Electrons move freely from atom to atom. (correct)

<p>Neutral</p> Signup and view all the answers

<p>Rubber</p> Signup and view all the answers

Study Notes

Elements consist of a single type of atom, forming the basic building blocks of matter.

Proton: Positively charged particle located in the nucleus of an atom.
Neutron: Neutral particle found in the nucleus, contributing to atomic mass.
Electron: Negatively charged particle that orbits the nucleus at high speeds in energy shells.

Cell: Represented by + - symbols indicating positive and negative terminals.
Battery: Shown with - + - symbols for multiple cells.
Resistor: Symbol not specified; used to limit current flow.
Incandescent Lamp: Symbol not specified; produces light by heating a filament.
Fuse: Symbol not specified; provides overcurrent protection.
One Way Switch: Symbol not specified; allows current flow in one direction.
Ammeter: Illustrated as + A - to measure electric current.
Voltmeter: Depicted with + V - to measure voltage.
Ohmmeter: Denoted with - Ω - to measure resistance.

Electric current results from the movement of free electrons through a conductor.
The flow conventionally moves from positive to negative, while actual electron flow is from negative to positive.
Current is measured in Amperes (A).