Levers and Pulleys

In a simple machine, what is the load?

• point where the lever arm pivots

• the force needed to move the load

• the mass lifted by a system

• the distance the load travels

In a simple machine, what is the effort?

• the force needed to move the load

• the distance the load travels

• the mass lifted by a system

• the object being moved

What is the unit used to measure force?

• meter

• gram

• Newton

• liter

What is the point where the lever arm pivots?

• load

• fulcrum

• mass

• effort

What class lever is pictured below?

• Class-1 &3

• Class-3

• Class-2

• Class-1

Which of the following is NOT part of a pulley system?

• rope

• pulley

• load

• wedge

any of the six basic devices that provide mechanical or other advantage, such as pulleys and levers

• effort
• lever
• load
• simple machine

A ______ is a grooved wheel with a rope running along the groove.

• lever
• pulley
• screw

A sloping force, like a ramp, that reduces the mount of force required to lift an object.

• screw
• wheel and axle
• inclined plane

Tags

NGSS.MS-PS2-2

A simple machine that can split things apart or hold a door open.

• wedge
• screw
• lever