PLTW 3rd grade Simple Machines Review

What kind of machine is this?

• lever

• pulley

• screw

• inclined plane

What kind of machine is this?

• wheel and axle

• wedge

• inclined plane

• lever

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What kind of machine is this?

• wedge

• screw

• wheel and axle

• pulley

What kind of machine is this?

• wedge

• lever

• screw

• wheel and axle

What kind of machine is this?

• inclined plane

• wedge

• lever

• pulley

What is the resistance force?

• the girl

• the dog

Tags

NGSS.3-PS2-1

What is the effort force?

• The weight of the car.

• The person pushing the car.

Tags

NGSS.MS-PS2-2

What is the effort force?

• The man pushing the tire.

• The weight of the tire.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the resistance force?

• The girl pulling the tractor.

• The tractor.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is a force?

• friction

• two objects rubbing together

• a struggle

• a push or a pull

Tags

NGSS.3-PS2-1