EIE: Designing Alarm Circuits

Which of the following would an electrical engineer do for his or her job? Mark ALL that apply:

• draw a circuit so others can build it

• build car engines

• use insulators and conductors

• improve electrical circuits

• design the shape of electric cars

A toaster takes electrical energy and changes into

• sound energy

• mechanical energy

• heat energy

• light energuy

A light bulb takes electrical energy and changes it to

• heat energy

• mechanical energy

• sound energy

• light energy

Which of the following circuits does NOT match this schematic diagram? Choose the BEST answer.

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Which of the following schematic diagrams correctly represents this circuit?

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The diagram above shows 2 batteries connected to 3 light bulbs and 3 different objects labeled A, B, and C.

Which of the objects are conductors?

• Object A

• Object B

• Object C

The picture above shows a glass of water being heated on a hot plate. Energy is changing from one form to another. When the energy enters the hotplate, what form is it in?

• plug

• heat

• cold

• electricity

What form does the energy change into?

• heat

• water

• electricity

• hot plate

Which of the following is a technology? Mark ALL that apply.

• broom

• electric car

• paper clip

• oak tree

• battery