challenge simple machines review

What is an example of a lever?

• stapler

• crowbar

• seesaw

• all of the above

Work can be defined as

• a force exerted on an object

• a push or pull exerted on an object

• movement of an object without a force

• a force exerted on an object that causes it to move

Which of these activities would require the least effort?

• Walking up a short ramp with a steep incline.

• Walking up a long ramp with a steep incline.

• Walking up a long ramp with a slight incline.

• Bypassing the ramp and jumping directly onto a platform.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of these activities would require the least effort?

• Walking up a short ramp with a steep incline.

• Walking up a long ramp with a steep incline.

• Walking up a long ramp with a slight incline.

• Bypassing the ramp and jumping directly onto a platform.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which Olympic event features an inclined plane?

• The 100-meter dash

• Swimming

• Downhill skiing

• Ice skating

What is a lever?

• Any piece of metal that bends.

• Any bar or a rod that's set up to tilt on a fulcrum.

• Any bar that's used to lift a load.

• Any bar that's attached to a pulley.

In a doorknob, what part functions as the wheel?

• The knob itself

• The metal rod in the middle

• The fulcrum

• The keyhole

The handles of a wheelbarrow are an example of what type of simple machine?

• Pulley

• Lever

• Inclined Plane

• Wheel and Axle

An ax, a zipper, and a front tooth are examples of a simple machine called a

• Lever

• Wedge

• Screw

• Inclined Plane

Which of the following is NOT a simple machine?

• Lever

• Screw

• Inclined Plane

• Engine