Physical Science - Work-equation calculations

If you push a chair 3.25 m across the room employing a force of 56.2 N, how much work have you done on the chair?

• 183 J

• 17.3 J

• 1234 J

• 175 J

Which unit is the SI unit for reporting work and/or energy?

• joule

• newton

• meter

• second

How much work is done on a 1 kg bottle of soda while you hold onto it in line at the grocery store for 240 s while waiting for your turn to check out?

• 240 J

• 2352 J

• 0 J

• 5 J

A person working out lifts a 40 lb. kettlebell from the floor to his waist (a distance of 1.22m). How much work does he do on the kettlebell?

• 0 J

• 48.8 J

• 217J

• 32.8 J

A student moves a box across the floor by exerting 174.8 N of force and doing 3250 J of work on the box in 25 s. How far does the student move the box?

• 0.744 m

• 18.6 m

• 22724 m

• 465 m

A student exerts a net force of 850.0 N pushing a box 15.00 m across the floor in 27.00 s. How much work does the student perform?

• 56.67 J

• 12750 J

• 472.2 J

• 1530. J

A box is moved several times resulting in a displacement of 1.35 m from its original position. An average acceleration of 1.50 m/s² has resulted in 28.6 J of work being performed on the box. Calculate the mass of the box and its contents, in lbs.

• 31.1 lbs.

• 14.1 lbs.

• 31.8 lbs.

• 25.7 lbs.