Revision 3

Hammering a nail on a roof is

• input

• process

• output

Tags

NGSS.MS-PS3-5

A done roof with shingles

• input

• process

• output

Tags

NGSS.MS-ETS1-1

Tools to build a roof are

• input

• output

• process

Tags

NGSS.MS-ETS1-1

Which of the following would be

classified as feedback?

• sending pictures

• receiving pictures

• constructing a system

• reporting problems

Why are helicopters more effective than other means of transportation for search and rescue operations?

• Helicopters can land safely in land in

  smaller smaller areas.

• Helicopters can fly faster than anything.

• Helicopters can fly longer

• They can stay in the air longer.

A pilot lowers the flaps before takeoff to increase which of the following

forces?

• Lift

• Drag

• Gravity

• Thrust

Which of the following statements

describes how engineers increase

tensile strength tensile strength when building a

deck?

• They use concrete that sets

  more quickly.

• They put steel bars within the

  concrete

• They add a layer of asphalt

  on top of the concrete.

• They reduce the amount of

  water in the concrete

  mixture.

Which force acts on a suspension bridge?

• Compression

• Tension

• Bending

• Torsion

Tags

NGSS.MS-PS2-2

According to the Pugh chart, which material would be the best to pick?

• Wood

• Plastic

• Metal

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

In an experiment, what is the factor

that the scientist measures called?

• Independent variable

• Control

• Constant

• Dependent variable