Levers

WHAT ARE THE 3 MAIN PARTS OF A LEVER?

• FOOT, EFFORT, REPORT
• FULCRUM, STRUCTURE, EFFORT
• FULCRUM, EFFORT, LOAD

What is definition of the effort?

• The fixed point or pivot
• The point where the force is applied 
• The point where the weight/resistance is coming from

In a simple machine, what is the load?

• point where the lever arm pivots

• the force needed to move the load

• the object lifted by a system

• the distance the load travels

What is the unit used to measure force?

• meter

• gram

• Newton

• liter

Tags

NGSS.HS-PS2-1

The fixed point on a lever is called a(n)

• lever arm
• load
• fulcrum
• effort

A ___________ is a bar that pivots on a fixed point. 

• wheel and axle
• pulley
• lever
• wheel

Which tool is an example of a lever?

• riding lawn mower
• wheel on a car
• scissors
• dishwasher

What is definition of the effort?

• The fixed point or pivot
• The point where the force is applied 
• The point where the weight/resistance is coming from

Which of the following is true for the picture?

• elephant is the fulcrum, mouse is the effort, triangle is the load
• mouse is the fulcrum, triangle is the effort, elephant is the load
• triangle is the fulcrum, mouse is the effort, elephant is the load

Tags

NGSS.MS-PS2-4

If simple machines reduce the force needed to move an object, what trade-off must be made?

• increase the amount of work
• decrease the amount of work
• increase the distance the force is applied
• decrease the distance the force is applied

Tags

NGSS.MS-PS2-1