PS Ch 7 Electricity

A circuit that has two or more separate branches for current is a _____. (7.3a & Notes HO)

• parallel circuit

• circuit diagram

• series circuit

• electron circuit

The statement, current is equal to the voltage difference divided by the resistance, is known as _____. (7.2d & Notes HO)

• Ohm’s law

• Einstein’s equation

• Newton’s law

• Faraday’s law

A static discharge differs from an electric current in that a static discharge _____. (7.1d & Notes HO)

• is a flow of electrons

• lasts for only a fraction of a second

• results because a force is exerted on the electrons

• involves the movement of ions as well as electrons

Electric charge that has accumulated on an object is referred to as _____. (7.1a & Notes HO)

• current electricity

• static electricity

• circuit electricity

• current circuit

Resistance is measured in a unit called the _____. (7.2c & Notes HO)

• ampere

• volt

• ohm

• coulomb

The rate at which an electrical device converts energy from one form to another is called _____. (7.2c & Notes HO)

• electrical energy

• electrical power

• electrical resistance

• voltage regulation

Tags

NGSS.HS-PS3-3

A path that allows only one route for a current is called a _____. (7.3a & Notes HO)

• series current

• parallel circuit

• parallel current

• series circuit

Which of the following is the correct relationship among power, current, and voltage? (7.3c, 7.3 HO & Notes HO)

• P = I/V

• P = I × V

• V = P × I

• Ω = P × I

A television that requires an average of 0.40 ampere of current is operated on a 120-volt service for 5.0 hours. How much energy is used? (7.3c & 7.3 apply math ques.)

• 1.5 kWh

• 0.24 kWh

• 0.15 kWh

• 0.67 kWh

Tags

NGSS.HS-PS3-1

One source of constant electric current is a ____. (7.2b; 7.4 HO & SG)

• switch

• dry cell

• transformer

• coulomb