Mechanical

If the output (driven) gear is smaller than the input (drive) gear, the speed will

• increase
• be constant
• decrease
• there is not enough information

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

To push or pull an object

• torque
• work
• force
• energy

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

37 Newtons of force are required to lift a mass 3.5 meters above the floor. How many newton.meters of work is done?
W=F x d

• 12.95
• 129.5
• 1295
• 1480

Tags

NGSS.MS-PS3-5

A force that opposes the movement of one solid in contact with another solid.

• Friction
• Efficiency
• Radian
• Motor

A ratio of the output work delivered by a machine to the input work done on the machine to operate it.

• Power
• Friction
• Radian
• Efficiency

A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.  

• wedge
• screw
• lever
• inclined plane 

Tags

NGSS.MS-PS2-2

An inclined plane wrapped around a rod forms this simple machine 

• lever
• pulley
• screw
• wedge 

Tags

NGSS.MS-PS2-2

A simple machine that consists a rigid bar that pivot about a fixed point

• lever
• pulley
• wheel and axle
• fulcrum 

Tags

NGSS.MS-PS2-2

An axe is an example of a

• pulley
• inclined plane
• screw
• wedge 

A seesaw is an example of a  

• wedge
• lever 
• inclined plane 
• pulley