12.11 Work and Power Concepts

What is the formula for calculating work done when a force is applied to move an object a certain distance?

If a force of 10 N is applied to move an object 5 meters, what is the work done?

• 15 J

• 50 J

• 5 J

• 100 J

Tags

NGSS.HS-PS3-1

What is the unit of power?

• Joule

• Watt

• Newton

• Meter

If a machine does 200 J of work in 4 seconds, what is its power output?

• 50 W

• 800 W

• 100 W

• 25 W

Which of the following statements is true about power?

• Power is the rate at which work is done.

• Power is the total amount of work done.

• Power is the force applied over a distance.

• Power is the energy stored in an object.