Technology Systems I

JEOPARDY!Catch the

Wave

History

Ends with “ER”

Name that

Scientist

It Does What

?

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JEOPARDY! ROUND 2

Units of

Measure

In order to…

How Waves Behave

Circuit

Sense

Safety First!

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DOUBLE JEOPARDY!It’s All

in A Name

Codes Procedures

Why or

Why Not?

Design Calcs

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FINAL JEOPARDY!

Find the power used by the 5 ResistorAND

Find the total current out of the source

I1 I2

R1

5 R2

10

As frequency goes up, this goes down..

In this type of wave motion, the particles of the medium move perpendicular to the direction the wave

travels.

This term describes the physical

distance between adjacent crests (or troughs) of a wave.

This class of waves do not require a

physical medium.

This term describes one complete

pattern of a wave.

Invented In the 1790’s Claude

Chappe’s telegraph system only worked

in this.

These ancient people first described the

peculiar static effects of Amber

Guglielmo Marconi’s invention

could transmit and receive only this type of message.

In 1837, messages were first sent in Morse code by means of this

device.

Invented by an Italian count, this device

first sparked people’s curiosity in

1800.

This part of a communications system sends the

message.

This is an acronym that describes a

device that makes a very bright,

monochromatic light.

This simple device measures current in an electrical circuit.

This thin light-carrying strand

always has at least two layers.

Invented before the laser, this device

created very strong microwaves.

This scientist’s 1916 theory led to the

development of the laser, among other

things.

The units for ΔV are named for this

Italian scientist.

Little-known today, he built the first working laser in

1960.

The unit of electric current is named for this French scientist from around 1800.

His 1831 investigations proved that an

electric current could be produced by a

magnet.

The lower index of refraction of this outer layer keeps

light inside an optical fiber.

This device converts a sound wave into an electrical wave.

This simple tool responds to the

Earth’s magnetic field.

Commonly used as a light source, an LED is short for a Light Emitting ________.

This complex tool is used to display electric signals

The period of a wave is measured in these

small units.

This basic unit is used to measure

wavelength.

The resistance of an electrical device to

current flow is measured in this

unit.

Short for “cycles per second”, this unit of frequency sounds like a rental car.

Named for a French scientist, the unit of electric charge ends

with a silent “b”.

In order to make sure that the message was

received, a communications

system should use this method.

In order to calculate the power in an

electric circuit, you need to multiply the

voltage by …

In order to find the frequency of a

signal when you know its period, you

need to…

In order to tell whether a circuit is wired in series, you should

remove one bulb and the other bulbs

should…

In order to calculate current from the voltage and the

resistance, you should ____________ the voltage

by the resistance.

When a light wave travels across a

boundary from one medium to another, it

_______________.

When a light wave travels through gaps

in a barrier, it _______________.

The pencil in this picture

appears to be broken because the ____ of the light changes.

In this diagram illustrating the

Law of Reflection, the blue line is

referred to as the _________ line.

The light ray “bounces” as it travels in this

picture because of Total Internal ____________.

This diagram shows a

__________circuit.

This diagram shows a

__________circuit.

Three identical light bulbs are connected as shown to a

12-V battery. Each light bulb will

receive ____ Volts.

Each light bulb in this circuit has a current

of 50 milliamps. The total

current from the battery is

________.

The voltage across the 3.0 resistor in this circuit is ________.

10.0V

2.0

3.0

You must be careful with even a low-

powered laser because it can still cause this.

These devices will melt to interrupt a dangerously high

current.

A conductive path between the terminals

of a circuit voltage source is known as this.

This device acts like an automatic switch,

opening when too much current flows.

If you value your eyesight, never look into the opening of

this.

The unit of electrical resistance is named for this scientist who

investigated the relationship between voltage and current.

This nineteenth-century scientist who was born in Scotland

invented the telephone.

The unit of power is named for this

English marketer of early steam engines.

The height of a wave crest is named by

this term.

This is the name for the amount of signal

lost in a communications

system

The resistance of this resistor.

The resistance of this resistor.

The color bands of a 1500 5% resistor.

This word appears here in Morse code.

• — — • — • • • • •

This word appears in Morse code.

• • • — • — — • — • • — — • • — — — — •

To show that laser light is monochromatic, you need to show that the

light is made up of this.

In order to measure direct current voltage using the multimeter, you need to

press the blue button labeled with these

letters.

In order to measure direct current using the

multimeter, you need to press the blue button labeled DCA, then you need to remove this.

Before you can find frequency using an

oscilloscope, you need to find the period. To do this, you need to count

the spaces between these.

To find peak-to-peak voltage using an oscilloscope, you need count the spaces between

these.

Should you leave the beam stop of a laser open all the time?Why or why not?

Could you make a reliable communications system using lasers in open air?

Why or why not?

To make a string of lights so that if one bulb

burns out, the others will stay on, should you wire the lights in series?

Why or why not?

To build a circuit so that the light bulbs

are as bright as possible, should you

wire them in parallel?Why or why not?

According to this attenuation

graph,should you

choose a light source of 575 nanometers to work with this optical fiber?

Why or why not?

Ed uses a meter to measure a current of 15 mA. In Amperes,

this current would be…

A current 0f 0.5 Amperes flows through

a 20- resistor. The voltage across this resistor would be…

A current 0f 5.0 Amperes flows through a television when it is connected to a

120-Volt supply. The power rating of this

television would be…

The total resistance of this circuit is…

30.0V

4.0

2.0

The current through this circuit is…

30.0V

4.0

2.0