Unit 6: Work, Power, and Simple Machines

Match these units

• Distance

• Joules

• Power

• Newtons

• Force

• meters

• Work

• J/s or Watts

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Match these units

• Power

• meters

• Distance

• J/s or Watts

• Force

• Joules

• Work

• Newtons

Tags

NGSS.MS-PS3-3

Match the formulas

• Work

• work/time

• Speed

• mass × acceleration

• Power

• force * distance

• Force

• distance/time

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Work is only done when an object (a)  

• moves
• stays still
• articulates
• conjugates

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Due to (a)   , the work put into a machine is always greater than the work output

• energy
• efficiency
• friction
• mass

Tags

NGSS.MS-PS3-5

The ratio of work output to work input is called

(a)   . ​ (b)   numbers are better. The stocks (old timey handcuffs) on Aang have a very low amount of this.

• energy

• efficiency
• friction

• mass

• Higher
• Lower

It takes Appa a force of 200N to carry the kids 1,000 km. How much work has he done? (a)  

• 1200 Joules of work
• 500 Joules of work
• No work has been done
• 200,000 Joules of work

Toph pushes against the turret with 500 Newtons of Force. It stays in place.

1. 1. How much work has been done?

2. (a)  

2. How do you know? (b)  

• 1000 Joules of work

• 500 Joules of work

• 0 Joules of work
• Excessive force leads to work being done
• No movement, no work
• Force was applied and an object moved

When Aang fights Ozai, he wields 500,000,000 Joules in 250 seconds. His power is _______ J/s

Tags

NGSS.HS-PS3-1

Match these simple machines

• inclined plane

• 
• Wedge

• 
• Pulley

• 
• Lever

• 

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-PS2-1

NGSS.MS-PS2-2