Science: Simple Machines, Force, and Work

A simple machine that consists of a bar that pivots at a fixed point called a fulcrum

• lever

• work

• Force

• wheels

Force exerted on an object that causes it to move, it must MOVE.

• lever

• work

• Force

• wheels

Tags

NGSS.MS-PS2-2

The fixed point around which a lever pivots.

• fulcrum

• work

• rollers

• wheels

Tags

NGSS.MS-PS2-2

Round objects used to make objects easier to move without an axel.

• fulcrum

• work

• rollers

• wheels

Tags

NGSS.MS-PS2-1

A push or pull exerted on an object.

• Pulley

• work

• Force

• wedge

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Attaches to a wheel for direction

• Pulley

• wedge

• axel

• screw

Tags

NGSS.MS-PS2-1

A simple machine that consists of a grooved wheel with a rope or cable wrapped around it.

• Pulley

• wedge

• axel

• screw

Ratio of the output force exerted by a machine to the input force applied to the machine.

• Pulley

• Force

• fulcrum

• mechanical advantage

Slanted surface used to raise an object; Uses greater distance but uses less force; you want a long, gentle slope not a short, steep slope.

• Screw

• Axel

• Incline Plane: Ramp

• mechanical advantage

Tags

NGSS.MS-PS2-2

A simple machine that is an inclined plane wrapped around a central cylinder to form a spiral.

• Screw

• Axel

• Incline Plane: Ramp

• mechanical advantage