Electric Energy and Power

What is the energy possessed by a charge due to its position in an electric field?

• electrical potential energy

• electrical kinetic energy

• electrical mechanical energy

• electrical potential difference

Tags

NGSS.HS-PS3-2

Electric power is the rate at which charge carriers

• pass through an area

• do work

• move through a potential difference

• collide with atoms

superconductor

• material with high resistance

• material with low resistance

• material with half resistance

• material with zero resistance

kWh stand for

• kilowestohm

• kilometwer

• kilowatt hour

kilowatt hour is equa to

• 1000W for 3600s

• 1500W for 3600s

• 1000W for 3000s

• 500W for 10s

What does power mean?

• Joules transferred per second
• Electron flow per second
• Speed of electrons
• Electron energy

Which of the following equations is an equation for power, involving current and resistance?

• P= I/V

• P = IR

• P = IVR²

• P = I²R

Which of the following is an equation for power, involving voltage and resistance?

• P = V/R

• P = V²/R

• P = VR

• P = V²R²

A kilowatt-hour is equal to ____________ joules.

• 3,600

• 360,000

• 3,600,000

• 360,000,000

If electrical power costs $0.12/kwh, and I use 9 x 10⁸ Joules of electrical energy, what will I be charged?

• $10

• $20

• $30

• $40

Tags

NGSS.HS-PS3-1