DOL Digital and Analog information 12-19-24

1. Which of the following best defines "information"?

• A collection of secrets and codes.
• Data or facts.
• Songs and games.

2. How is digital information represented?

• Through a series of continuous waves.
• By using a combination of 0s and 1s.
• Through handwritten symbols and characters.
• By encoding information in colors.

3. Anthony’s car shows the car’s speed on a dial like the one below. Is this dial an analog or digital display, and how do you know?

• Analog, because the hand can point to any value on the dial
• Analog, because it displays an exact value of the car’s speed
• Digital, because there are markers for different speeds on the dial
• Digital, because it displays an exact value for the speed

4. Ariana is touring a recording studio. She notices that the studio prefers to store music using digital devices rather than analog devices. What is one reason that the studio might store music using digital signals?

• Sound information can only be stored using digital signals.
• Digital signals carry more information than analog signals.
• Stored digital signals can be more reliable than analog signals.

Tags

NGSS.MS-PS4-3

5. Part A The graph below shows an analog signal with sample times at a specific interval. Sampling rate describes the frequency at which snapshots of an analog signal are recorded when converting to a digital signal. What does the sampling rate graph describe in the conversion from analog to digital?

• The size of the analog signal.
• A amplitude of the analog signal.
• The frequency of the digital signal.
• The frequency at which snapshots are taken.

Tags

NGSS.MS-PS4-3

Part B Imagine you are taking pictures of your favorite pet. How does taking a lot of pictures quickly, like a high sampling rate, help capture all the details of your pet? How might it be different if you take pictures slowly, like a low sampling rate? Use SCR Format.

Tags

NGSS.MS-PS4-3