6th-8th Grade Tech/Eng MCAS Review

To send a message from one person, thing, or place to another is an example of

• decoding.
• receiving.
• transmitting.
• storing.

Tags

NGSS.MS-PS4-3

Television remote controls use infrared (light wave) signals to allow a viewer to change channels from a distance.  Which of the following best describes the operation of the remote control?

• decoding and storing
• storing and retrieving
• encoding and transmitting

Tags

NGSS.MS-PS4-3

Which one of the following is an example of an output?

• manufactured product
• communicated message
• transported person
• all of the above

Flipping the light switch is what step in the technological system model?

• Input
• Output
• Process
• Feedback

8.ETS.2.05: The picture below shows a group of sharp steel strips arranged in a pattern that is used to manufacture cardboard jigsaw puzzles. What is the purpose of the group of steel strips?

• to cut the puzzle pieces out of cardboard

• to join the puzzle pieces together for packaging

• to assemble the puzzle pieces for store displays

• to finish the puzzle pieces by smoothing the cardboard

7.ETS.3.05: A computer touch screen allows users to enter information. Users have complained that the touch screen is too difficult to operate because the system does not indicate when a choice has been selected.

The complaints are which element of the universal systems model?

• feedback

• goal

• inputs

• processes

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

7.ETS.3.04: In a house, cracks are forming in the walls, around the corners of several doors, and around the windows. The cracks are forming because the house is constructed on unstable ground.

Which of the following parts of the house should be strengthened to prevent the cracks from getting worse?

• the decking

• the foundation

• the roofing

• the siding

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

7.ETS.3.03: Which of the following statements best explains why helicopters are usually more effective than airplanes for search-and-rescue operations in mountainous regions?

• Helicopters can land safely in smaller areas.

• Helicopters can fly faster to reach their destination.

• Helicopters can fly longer distances without refueling.

• Helicopters can stay in the air longer in bad weather conditions.

6.ETS.2.03: Which of the following describes the proper use of a tool?

• A screwdriver is used to bend a thick wire.

• A pair of pliers is used to cut thin sheets of metal.

• A wrench is used to push a nail into a piece of wood.

• A drill press is used to make a hole at a precise angle.

6.ETS.1.05: A city street must be widened. The street cannot be too close to the buildings on it.

Which of the following would best show how close the widened street would be to the buildings?

• floor plans of each building

• photographs of each building

• site plans of the areas in front of each building

• photographs of the views from the front doors of each building

Tags

NGSS.MS-ETS1-1