Force and Work

What type of simple machine would be most useful for raising a flag to the top of a flagpole?

• wedge

• Inclined plane

• Screw

• Pulley

What type of simple machine is most helpful for holding a door open?

• Wedge

• Wheel and Axle

• Screw

• Pulley

What type of simple machine would be most useful for eating from a cereal bowl?

• lever

• wedge

• screw

• inclined plane

Simple machines reduce the amount of work that is done?

• True

• False

Tags

NGSS.4-PS3-4

A device used to make work easier is a simple machine.

• True

• False

There are two or more simple machines in this picture

• True

• False

The strawberry is the load in this picture.

• True

• False

Which word describes an objects speed and direction?

• Velocity

• Altitude

• Acceleration

• Speed

What is a beam or bar with a fulcrum?

• Lever

• Screw

• Inclined Plane

• Wedge

This jar and lid are examples of what simple machine

• Lever

• Wedge

• Wheel and Axle

• Screw