Physics Digital Encoding Quiz

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Quiz on digital encoding and imaging.

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Alaa

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Physics Digital Encoding Quiz


Froggy Jumps Physics Digital Encoding QuizVersión en línea Quiz on digital encoding and imaging. por Alaa 1 Which binary number represents the decimal number 28? a 10101 b 11100 c 11000 2 Which binary number represents the decimal number 27? a 11000 b 10101 c 11011 3 Before digital cameras, how were images captured? a By sound recording b By binary coding c By exposing light onto a film coated with chemicals 4 What is an image on a captured film called? a Negative b Positive c Frame 5 The unit equivalent to the amount of information needed to specify a choice between binary alternatives is called? a Bit b Megabyte c Byte 6 How many possible values can be represented with 3 bits? a 8 b 16 c 4 7 What is the first step in storing sound digitally? a Sampling the sound wave b Drawing waveforms c Recording on film 8 A higher sampling rate means: a Lower sound quality b More accurate representation of sound c Fewer binary codes needed 9 What makes digital information easy to share? a It cannot be transmitted over networks b It is always in printed form c It can be copied without loss of quality 10 Why is digital information considered reliable? a It cannot be duplicated b It degrades over time c It is less prone to errors compared to analog 11 How many values can 3 bits represent? a 16 b 4 c 8 12 What is the first step in storing sound digitally? a Recording on film b Drawing waveforms c Sampling the sound wave 13 A higher sampling rate means? a Lower sound quality b More accurate representation of sound c Shorter recording time 14 Analog sound is continuous; digital sound is stored as? a Continuous curves b Binary codes (0s and 1s) c Magnetic groove 15 In 3D imaging, a voxel is? a The 3D picture element b The 2D pixel c A volume file format 16 What makes digital information easy to share? a Cannot be transmitted over networks b Can be copied without loss of quality c Always printed 17 Why is digital information reliable? a Cannot be duplicated b Less prone to errors compared to analog c Degrades over time 18 What allows wireless signals to travel long distances? a Electromagnetic waves b Mechanical waves c Sound vibrations 19 Why do microwaves heat water molecules? a Water molecules are heavy and store heat easily b Water molecules are metallic and conduct electricity c Water molecules act like antennas that absorb microwave energy 20 What is a key advantage of transmitting information digitally? a It cannot be shared with others b It can be transmitted quickly over networks c Requires large physical storage

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Physics Digital Encoding Quiz

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Physics Digital Encoding QuizVersión en línea

por Alaa

Which binary number represents the decimal number 28?

Which binary number represents the decimal number 27?

Before digital cameras, how were images captured?

What is an image on a captured film called?

The unit equivalent to the amount of information needed to specify a choice between binary alternatives is called?

How many possible values can be represented with 3 bits?

What is the first step in storing sound digitally?

A higher sampling rate means:

What makes digital information easy to share?

Why is digital information considered reliable?

How many values can 3 bits represent?

What is the first step in storing sound digitally?

A higher sampling rate means?

Analog sound is continuous; digital sound is stored as?

In 3D imaging, a voxel is?

What makes digital information easy to share?

Why is digital information reliable?

What allows wireless signals to travel long distances?

Why do microwaves heat water molecules?

What is a key advantage of transmitting information digitally?