Force, Motion, and Simple Machines

A push or pull on an object.

• effort

• work

• force

• simple machines

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A simple machine that is two inclined planes back to back that helps cut or split other objects.

• wedge

• screw

• lever

• inclined plane

Tags

NGSS.MS-PS2-2

A machine that is made up of two parts: a disk that turns around an axis and transfers force to and from an axle.

• pulley

• wheel and axle

• lever

• inclined plane

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A stiff bar that moves about a fixed point (fulcrum). It helps lift heavy objects.

• wedge

• fulcrum

• lever

• inclined plane

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

a wheel and a rope that changes the direction of the force to lift objects upward

• wheel and axle

• lever

• pulley

• inclined plane

Tags

NGSS.MS-PS2-1

A cone shaped object that has an inclined plane wrapped around it.

• screw

• lever

• wedge

• inclined plane

A sloped surface that makes it easier to go from one height to another height

• screw

• lever

• wedge

• inclined plane

Tags

NGSS.MS-PS2-2

Friction is a force that ______ motion.

• helps

• creates

• opposes

• destroys

Tags

NGSS.MS-PS2-2

Friction causes a moving object to slow down or ______.

• move

• stop

• go faster

• create force

Tags

NGSS.MS-PS2-2

Friction can also prevent an object at rest from _______.

• helping

• resting

• stopping

• moving

Tags

NGSS.3-PS2-1