Electricity

In the image, a student is rubbing a balloon on his head. What method is he using to charge the balloon?

• friction

• induction

• conduction

Which of the following is an electrical insulator?

• copper

• rubber

• aluminum

In the image there are four common electrical devices. Which electrical device runs on direct current?

• Device 1 - Toaster

• Device 2 - monitor/TV

• Device 3 - Flashlight

• Device 4 - Lamp

The diagram show a two examples of circuits. Which choice correctly explains circuit 1 and circuit 2?

• Circuit 1 is parallel & Circuit 2 is series

• Circuit 1 is series & Circuit 2 is parallel

It is important to practice electrical safety. Which of the following choices is unsafe?

• seeking shelter under a tree during a lightning storm

• keeping appliances AWAY from sinks and bathtubs

• Using GFCI in the home

Tags

NGSS.MS-ESS3-2

The diagram shows 4 parts of a circuit. Which one is the energy producer?

• 1

• 2

• 3

• 4

In the image showing 4 parts of a circuit, which one is the load?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ETS1-1

An object can become electrically charged if it gains or loses which particle?

• protons

• neutrons

• electrons

Which of the following best decribes alternating current?

• current going in one direction

• current that alternates direcation

What is the difference between charging by conduction and charging by induction?

• During conduction, charges move between touching objects; during induction, charges rearrange within an object that is near another charged object.

• During induction, charges move bewteen touching objects; during conduction, charges rearrange within an object that is near another charged object.