Simple Machines

The fixed point on a lever is called the __________.

• Bar

• Wedge

• Fulcrum

• Screw

A ___________ is a wheel with a rope wrapped around it that can be used to lift or PULL heavy objects by changing the direction or amount of force.

• Lever

• Wedge

• Pulley

• Inclined Plane

Which of the following are examples of inclined planes? (Hint: Two!)

• Door

• Slide

• Flag Pole

• Ramp

A __________ is a bar that moves around a fixed point in order to push, pull, or move things.

• Pulley

• Lever

• Wedge

• Screw

An __________________ is a flat surface that is raised higher at one end in order to move objects up or down.

• Lever

• Pulley

• Inclined Plane

• Wedge

A ___________ is an object that is wide at one end and pointed at the other to help cut or split objects.

• Wedge

• Screw

• Pulley

• Wheel & Axle

Which of the following are examples of levers? (Hint: Two!)

• Light Switch

• Seesaw

• Ramp

• Flag Pole

Which of the following are examples of wedges? (Hint: two)

• Jar lid

• Needle

• Nail

• Hose

Which of the following are examples of screws? (Hint: two!)

• Knife

• Jar lid

• Seesaw

• End of a light bulb

Simple machines change the ___________ of a force and the _________ of force needed to do something.

• Position

• Direction

• Amount

• Speed

Tags

NGSS.MS-PS2-1