Power

What is the definition of power?

• the amount of work an object does
• the rate at which force is applied
• the amount of matter in an object
• the rate at which work is done

This is work divided by time.

• Work
• Distance
• Power

How much time is needed to produce 720 Joules of work if 90 watts of power is used? 

• 0.125 s
• 8 s
• 64800 s
• 80 s

Tags

NGSS.HS-PS3-1

If 68 W of power is produced in 18 seconds, how much work is done?

• 1,224 J
• 0.264 J
• 3.77 J
• 12.24 J

Tags

NGSS.HS-PS3-1

What is the definition for kinetic energy?

• the energy of motion (due to mass and velocity)
• stored energy due to position
• Energy at the top of a hill

What is energy?

• Force applied over a distamce
• How much work is done.
• Ability to do work

Tags

NGSS.MS-PS3-5

What is the unit of measurement for Power?

• Joules
• Newtons
• Watts
• Meters

What is the equation for power?

• P = Work/time
• P = Force/time
• P = time/distance
• P = Work * time

What is power?

• transfer a force through a distance
• the rate of speed 
• the rate of work being done
• transfer of space over time

If 68 W of power is produced in 18 seconds, how much work is done?

• 1,224 J
• 0.264 J
• 3.77 J
• 12.24 J

Tags

NGSS.HS-PS3-1