Work, Energy, Power Review

How much work is being done with 200 N of force over 426 meters?

• 85,200 J
• 45,620 J
• 90,480 J
• 62,329 J

Tags

NGSS.HS-PS3-1

If 150 Joules of work is needed to move a box 10 meters, what force was used? 

• 1500 N
• 15 N
• 1.5 N
• 150 N

Tags

NGSS.HS-PS2-1

Calculate the KE of a runner that has a mass of 80 kg and is running at a velocity of 8 m/s

• 5120 J
• 320 J
• 640 J
• 2560 J

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 

• Both the potential energy and kinetic energy decrease
• The potential energy decreases while the kinetic energy increases 
• The kinetic energy decreases while the potential energy increases 
• Bothe the potential energy and kinetic energy increase 

Tags

NGSS.HS-PS3-1

At which point is potential energy greatest?

• W
• X
• Y
• Z

At which point is kinetic energy greatest? 

• W
• X
• Y
• Z

When a pendulum swings, at which point is kinetic energy highest?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

How much power is required to do 40.2 J of work in 3.3 s?

• 12.18 W

• 132.66 W

• 43.5 W

• 0.08 W

A force of 4.6 N moves a 2.7 kg box a distance of 3.3 m in 6.8 s. How much power is exerted?

• 2.23 W

• 6.03 W

• 17.4 W

• 278.7 W

Tags

NGSS.HS-PS3-1

What is the Total Energy of the system?

• 14 J

• 12 J

• 6 J

• 8 J

Tags

NGSS.HS-PS3-1