Mechanical Systems

When you have a system with a driving gear that is _______ than the driven gear, you will increase torque and decrease speed.

• smaller

• bigger

• same size

• thicker

Tags

NGSS.MS-PS2-1

Identify this simple machine

• Lever

• Wheel & Axle

• Inclined Plane

• Screw

The device used to raise a flag up a flag pole is an example of a 

• wheel and axle 

• lever

• inclined plane 

• pulley 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

This device

• wedge

• lever

• incline plane

• wheel and axle

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The fixed point on the lever is called 

• load

• resistance

• bar

• fulcrum

Which of these is not a simple machine?

• Scissors

• Screw

• Wheel and axle

• Pulley

For work to be done on an object, the direction and force have to be going the same direction.

• True

• False

Two examples of a pulley...

• knife & axe blade

• lightbulb & screw

• flagpole hoist & window blinds

• catapult & teeter totter

Tags

NGSS.MS-ETS1-1

lever

• a fixed point

• mass of the object lifted by the lever

• a rigid bar or plank that can rotate around a fixed point

• work unit

Tags

NGSS.MS-PS2-2

fulcrum

• mass of the object lifted by the lever

• a rigid bar or plank that can rotate around a fixed point

• is done when a force acts on an object to make that object move, a transfer of energy

• a fixed point