Work, Power, and Energy Quiz

Determine the work done on the car when Renatta and her friends apply a cumulative force of 1080 N to push the car 218 m to the nearest fuel station.

(a)  

How much work did the lifter do to the barbell during the ascent phase of a rep of the bench press, where the lifter exerts an average vertical force of 1000 N against a barbell while the barbell moves 0.8 m upward?

(a)  

How much work did the player do on the sled when a football player pushes a weighted sled with 225 Newtons of force along a 10.0 -meter long course?

(a)  

Calculate the power of a vehicle that does 30 J of work in 10 seconds.

(a)  

What will be the power of a body that has done 60 J of work in 3 seconds?

(a)  

How fast did a 385-pound lineman travel if he has 1227.66 J of kinetic energy?

(a)  

3730 watts = ______h.p.

 

•   a. 5

• b. 2

• c. 746

• d. 6

A push and pull upon an object resulting from the object’s interaction with another object.

                                     

• a. Force  

•    b.  Friction

• c. Motion

• d. Acceleration

Work = Force x _______

                                                       

• a. Distance

•   b. acceleration  

• c. Velocity

• d. Speed

The unit of power is _______.

                                         

• a. Watt per second

• b. Joule

• c. Kilojoule

• d. joule per second