Electrical Principles Quiz

What are good conductors and insulators referred to in electrical scientific principles?

• Devices that regulate voltage

• Materials that allow or resist the flow of electric current

• Components used to store electric charge

• Tools used to measure electric current

What does resistance and resistivity in electrical circuits describe?

• The capacity of a battery to hold charge

• The amount of voltage needed to power a device

• The opposition to the flow of electric current

• The rate at which electric power is transferred

What is meant by the term "voltage drop" in relation to electrical circuits?

• The increase in voltage across a component

• The decrease in voltage across a component

• The total voltage supplied to a circuit

• The constant voltage in a closed circuit

What are the chemical and thermal effects of electric currents?

• Generation of light and sound

• Creation of magnetic fields and radiation

• Changes in chemical composition and generation of heat

• Increase in resistance and capacitance

How are atoms within a solid described in terms of their movement?

• They move freely from one another.

• They are able to move around but maintain their volume.

• They are attached to each other and don't move around.

• They have no volume or shape.

What is a characteristic of atoms within a liquid?

• They have no volume or shape.

• They are attached to each other and don't move around.

• They can move freely from one another.

• They are able to move around while maintaining their volume.

What is true about atoms within a gas?

• They are attached to each other and don't move around.

• They move around and do not maintain a fixed volume.

• They are able to move around but maintain their volume.

• They have no volume or shape and can move freely from one another.

What is the charge of a proton?

• Negative

• No charge

• Positive

• Variable

Which particle in an atom has no charge?

• Proton

• Electron

• Neutron

• Positron

What is the charge of an electron?

• Positive

• No charge

• Negative

• Variable