Electricity Practice

Rebecca tries to explain to her sister what is taking place. Which of the following best describes static electricity?

• The flow of electrons through a conductor

• The build-up of electric charge on an object's surface

• The continuous movement of electrons in a circuit

• The conversion of electrical energy into light

The illustration below represents balloon A, which has an electrical charge. Balloon A would be most attracted to which other balloon?

• Balloon 1

• Balloon 2

• Balloon 3

• Balloon 4

Tags

NGSS.MS-PS2-3

This represents an incomplete electric circuit because the wires are not connected at X. Which object should Cory place at X to complete the circuit and allow the lightbulb to glow?

• Magnet

• Battery

• Iron Nail

• Second lightbulb

Tags

NGSS.MS-ETS1-1

Which of the following components is considered a load?

• Conductor

• Lightbulb

• Switch

• Battery

Electric lights, such as lightbulbs, will not turn on unless their electrical circuit is a ___________ circuit.

• Series
• Parallel
• Open
• Closed

Cory is interested to see which household items he can add to the circuit and still get it to work. Which of these groups contains items that could all conduct electricity?

• Rubber ball, plastic comb, nail

• Paper clip, penny, metal screw

• Cork, dollar bill, tweezers

• Glass, copper wire, paper

Which of the circuits above is a series circuit?

• Circuit A

• Circuit B

In a series circuit, what happens if one component fails?

• All components will continue to work

• The current increases

• All components will stop working

• The voltage increases

Tags

NGSS.MS-PS2-3

What would happen to light bulb #3 in circuit B if bulb #2 goes out?

• It will stay on

• It will go out

• The current will increase

• The current will decrease

Tags

NGSS.MS-PS2-3

How does adding more bulbs in a parallel circuit affect the brightness of each bulb?

• Brightness increases

• Brightness stays the same

• Brightness decreases

• Brightness will change over time