Work Done Not Done

what is the product of force and displacement?

• work

• power

• energy

what is the unit of work?

• Newton

• Joule

• Watt

• meter

what is the formula needed to solve for work?

• W=F/ $\Delta$ x

• F=W $\Delta$ x

if you push a cart with a force of 60 N for 2 m... how much work have you done

• 120 J

• 30 J

• 120 N

• 30 N

If 40N of force is applied to Rollo Koster's 10 kg cart over a distance of 50 meters, how much work is done?

• 8000J

• 8000N

• 4000J

• 2000J

Tags

NGSS.HS-PS3-2

Which of the following is the best example of work being done. 

• doing homework
• lifting a box
• pushing a stationary box
• holding a box

In which of these cases is work being done? 

• A student sleeps
• A student pushes a locked door that does not move
• a student carries his chair into another room
• A student sits on the carpet

Ahmed is out with his friends. Misfortune occurs and Ahmed and his friends find themselves getting a workout. They apply a cumulative force of 1000 N to push the car 200 m out of the sand. Determine the work done on the car.

• 2 x 10⁵ J

• 2.70 x 10⁴ J

• 3.2 x 10^-4 J

• 3.54 x 10⁵ J

Tags

NGSS.HS-PS2-1

Two people push on a wall with 100 N. The wall doesn’t move. How much work is done?

• 100J

• 100N

• 0J

• 0N

A student lifts 100 N of books 1 m to his shoulder. He walks forward 10 m to the stairs and goes up 3 m. He walks 20 m forwards to class. How much work has been done to the books?

• No work is done

• 100J

• 300J

• 400J

Tags

NGSS.HS-PS2-1