Match the following

• Inclined plane

• 
• lever

• 
• Wheel and Axle

• 
• Wedge

• 
• Pulley

• 

Tags

NGSS.MS-ETS1-1

What is the difference between a class 1, class 2, and class 3 lever?

• Class 3

• 
• Class 2

• 
• Class 1

• 

Tags

NGSS.MS-PS2-2

A 500-newton cart is lifted to a height of 1 meter using a 10-meter long ramp. You can see that the worker only has to use 50 newtons of force to pull the cart. You can figure the mechanical advantage in either of these two ways: 

• 10

• 50

• 5000

• 11

Tags

NGSS.MS-PS2-2

Match the following

• Work divided by time

• Simple Machine

• Force multiplied by time

• Power

• used in assessing the performance

• Compound Machine

• a lever

• Work

• More than one simple machine doing work

• Mechanical Advantage

It takes 45N to lift a 180N box with a pulley. What is the mechanical advantage of the pulley?

• 4

• 135

• 8100

• 225

Tags

NGSS.MS-PS2-2

A crate with a mass of 50 kg is pushed along a floor with a force of 20N for a distance of 5m. Calculate the work done.?

• 100 J

• 10 J

• 4 J

• 2.5 J

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

push or pull

Tags

NGSS.MS-PS2-1

type of machine made up of two or more simple machines

fixed point on which a lever rotates

a measure of the amount a machine multiplies a force is its