ETS 2.1

Earthquakes are usually associated with ____.

• violent weather

• large cities

• faults

• the east coast of North America

Tags

NGSS.MS-ESS3-2

The labeled parts of the sailboat have specific functions.

The sale provides the force needed to move the boat

The mast holds up the sail

The rudder steers the boat

Drag and drop each part of the sailboat into the box to identify it as a structural, propulsion, or control subsystem.

Groups:

(a) Structural

,

(b) Propulsion

,

(c) Control

• Mast

• Sail

• Rudder

Tags

7.ETS.3.3

What is the source of the message in this communication system?

• the satellite

• the satellite dish

• the USGS data collection site

• the water data available on the internet

Tags

7.ETS.3.1

Which of the following is the storage for this communication system?

• the lake

• the satellite

• the satellite dish

• the web server

Tags

7.ETS.3.1

The picture below shows a television satellite dish. The satellite dish is an example of which of the following components of a television communications system?

• decoder

• encoder

• receiver

• transmitter

Tags

7.ETS.3.1

Where is information being Encoded here?

• The trumpet being recorded by the microphone

• Compute 2 sending a signal to the speaker

• The speaker playing soudn

• Computer 1 sending the file to computer 2

Tags

NGSS.MS-PS4-3

How is a message being transmitted here?

• From the eletrical system to the door lock

• From the door lock to the mechanism

• From the Remote to the car via radio waves

• From the remote button to the battery

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the following best describes the encoder of a common telephone communication system?

• Receiving transmitted electrical signals

• converting sound to electrical impulses

• Changing electrical impulses into sounds

• Sending electrical signals through a circuit

The law of reflection states that when light rays strike a plane mirror they are

• reflected at a smaller angle at which they arrived

• reflected at the same angle at which they arrived

• reflected at a larger angle at which they arrived

Tags

NGSS.MS-PS4-2

What is the primary function of the Earth's atmosphere in regulating temperature?

• A) To trap heat from the sun

• B) To reflect sunlight back into space

• C) To absorb ultraviolet radiation

• D) To provide oxygen for respiration