Work and Machine Quiz

Force is a ______ or ______

• simple, complex

• in, out

• up, down

• push, pull

Tags

NGSS.MS-PS2-1

Energy Can not be created or destroyed, only converted from one form to another.

• True

• False

Tags

NGSS.MS-PS3-5

The efficiency of a machine can be increased by reducing ________.

• effort

• friction

• fulcrum

• resistance friction

Tags

NGSS.MS-ETS1-1

Work transfers

• effort

• energy

• sweat

• velocity

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which is not considered a simple machine?

• The wheel and axle

• the pulley

• The Pump

• The screw

Which of the following is the best example of work being done?

• lifting a box

• holding a box

• doing homework

• pushing a stationary box

A machine with a 5N input and a 25N output force has a mechanical advantage of?

• 20

• 125

• 5

• 2

Tags

NGSS.MS-ETS1-2

No machine can be 100% efficient because of

• Convection energy

• friction

• thermal energy

• waste energy

Units of force are

• grams

• joules

• newtons

• meterz

Which is doing work?

• holding a box

• picking up a pencil

• pushing a wall

• siting in a chair