Simple Machines

Device that is thick on one end and tapers to a thin edge on the other end. Can be considered as 2 inclined planes back-to-back.

• wedge

• Mr. Ellis

• lever

• screw

An inclined plane wrapped around a cylinder. The closer the threads, the greater the mechanical advantage.

• screw

• Mr. Ellis

• wedge

• device

A flat, slanted surface. Allows input force to be exerted over longer distances.

• wheel and axle

• Mr. Ellis

• inclined plane

• pulley

Tags

NGSS.MS-PS2-2

A grooved wheel with a rope, chain, or cable wrapped around it which can be pulled to change the direction and force on an object. This simple machine can be fixed, movable, or part of a system

• Mr Ellis

• pulley

• wedge

• wheel and axle

Tags

NGSS.MS-PS2-2

A rigid bar that is free to pivot or rotate about a fixed point called a fulcrum. There are 3 classes of this simple machine.

• lever

• Mr. Ellis

• wedge

• pulley

Two cylindrical objects that are fastened together and rotate about a common axis.

• wheel and axle

• Mr Ellis

• potato wedge

• pulley

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

It takes 20 Newtons of force to move a desk 10 meters. How much work is done to move the desk?

Make sure to include unit labels

It takes 3 Newtons of force to lift a paint can up a shelf. The total work exerted is 6 joules. What distance did the paint can travel?

Use Unit Labels

A hydraulic lift exerts a force of 1,200 N to lift the frame of a car 3 meters between factory stations. How much work is done to move the car?

dont forget units

A total of 200 joules of work is exerted when hauling a tree that needs to be planted across a 20 meter field. How much force is needed to move the tree?

Don't forget units