Electricity

The negatively charged particles in an atom are called ____

• negatrons

• protons

• neutrons

• electrons

Positive charges flow from ____.

• low-resistance areas to high-resistance area

• low-voltage areas to high-voltage areas

• high-voltage areas to low-voltage areas

• insulators to conductors

Which is designed to transform electrical energy into thermal energy?

• parallel circuit

• battery

• series circuit

• resistor

What is the standard voltage difference of electrical energy exiting standard home outlets in the US?

• 12 V

• 1200 V

• 220 V

• 120 V

Which of these is necessary in order to make an electric circuit?

• an open circuit

• a closed circuit

This question has 2 parts. The first answer is for the first question. The second answer is for the second question. What is the current through this circuit? What is the power consumed by the lightbulb in this circuit?

• 30 A, 96 kW

• 0.80 A, 96W

• 120 A, 1.25 W

• 1.25 A, 1.25 kW

Electrical devices have resistance because they ____

• contain insulators

• are exposed to sunlight

• are used to protect delicate electronic components

• convert some thermal energy into electrical energy

Tags

NGSS.MS-PS2-3

Voltage difference is measured in ___.

• ohms

• amperes

• volts

• watts

Resistance is the tendency of a material to promote the flow of electrons.

• True

• False

Tags

NGSS.MS-PS2-3

The rate at which electrical energy is converted to another form of energy is called electrical potential.

• True

• False

Tags

NGSS.HS-PS3-3