Unit 3 Lesson 4 Quiz review

Which camera would provide the highest quality image?

• One with lots of pixels

• One with a large screen

• One with lots of storage

• one with a large eyepiece

Emily sends a coded message by knocking on the wall. Jacob sends his coded message by turning a flashlight on and off. Their messages are shown in the table.

Which statement describes the messages Emily and Jacob sent?

Choose the correct answer.

• They sent the same message using the same type of energy.

• They sent the same message using different types of energy.

• They sent different messages using the same type of energy.

• They sent different messages using different types of energy.

Which statement is an advantage of using a wire to send a signal?

Choose the correct answer.

• Wired technology is not easily portable

• The wire is less likely to suffer from interference

• It is difficult to lay long distances of wire for sending signals

• Wires can be damaged and must be repaired before they can work again.

Human senses use a type of code to communicate between the sense organs, such as the eyes and the brain. When humans see a picture with their eyes, nerve signals carry a code of the picture through the optic nerve to the brain. Then the brain decodes the picture. Compare this process to how computers use code to communicate pictures to other computers.

Humans see a picture with their eyes.

• Computers receive pictures made of pixel dots

• Computer change pixels to 0's to 1's

• Computers use modems to move the code

• Computers decode 0's and 1's into picture pixels

Tags

NGSS.MS-LS1-8

Human senses use a type of code to communicate between the sense organs, such as the eyes and the brain. When humans see a picture with their eyes, nerve signals carry a code of the picture through the optic nerve to the brain. Then the brain decodes the picture. Compare this process to how computers use code to communicate pictures to other computers.

The picture is coded as nerve signals.

• Computers receive pictures made of pixel dots

• Computer change pixels to 0's to 1's

• Computers use modems to move the code

• Computers decode 0's and 1's into picture pixels

Tags

NGSS.MS-LS1-8

Human senses use a type of code to communicate between the sense organs, such as the eyes and the brain. When humans see a picture with their eyes, nerve signals carry a code of the picture through the optic nerve to the brain. Then the brain decodes the picture. Compare this process to how computers use code to communicate pictures to other computers.

Signals travel through the optic nerve to the brain.

• Computers receive pictures made of pixel dots

• Computer change pixels to 0's to 1's

• Computers use modems to move the code

• Computers decode 0's and 1's into picture pixels

Tags

NGSS.MS-LS1-8

Human senses use a type of code to communicate between the sense organs, such as the eyes and the brain. When humans see a picture with their eyes, nerve signals carry a code of the picture through the optic nerve to the brain. Then the brain decodes the picture. Compare this process to how computers use code to communicate pictures to other computers.

The human brain receives the signals and makes sense of the picture.

• Computers receive pictures made of pixel dots

• Computer change pixels to 0's to 1's

• Computers use modems to move the code

• Computers decode 0's and 1's into picture pixels

Tags

NGSS.MS-PS4-3

Which of these methods use technology, patterns, or both to transmit information? Choose all the answers that apply.

• Morse Code

• flags

• scytale

• Texting a friend using your phone

Tags

NGSS.MS-PS4-3

Cell phones use patterns to encode messages. How are cell phone signals transferred? Select the best answer.

• They go from the tower to the phone, then to another phone.

• They go from the receiver’s phone to the sender’s phone.

• They go from sender to tower, to relay, to tower, then to receiver.

• They go from tower to receiver, to sender, to relay, then back to the receiver

What is the first step in sending a message from your cell phone to a friends?

• Tower near your cell phone

• Tower near your friends cell phone

• your cell phone

• relay

Tags

NGSS.MS-PS4-3