Work Done and 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.MS-PS3-5

Power is defined as the quantity that measures the rate at which _____ is done or energy is transformed.

• energy

• time

• work

• elasticity

what is the product of force and displacement?

• work

• power

• energy

Tags

NGSS.MS-PS3-5

what is the unit of work?

• Newton

• Joule

• Watt

• meter

Tags

NGSS.MS-PS3-4

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

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

• 100J

• 100N

• 0J

• 0N

Calculate work: A 100 Newton force is applied to move a 15 kg object a distance of 5 meters?

• 20 Joules

• 75 Joules

• 500 Joules

• 1500 J

Tags

NGSS.MS-PS3-5

The unit used to measure work is the 

• Watt

• Newton

• Joule

• meter

If Jay Loppy pushes his van 20 meters how much work is done?

• 2,000J

• 40,000J

• 10,000J

• 800,000J

How much work is being done with 200 N of force over 426 meters?

• 85,200 J

• 45,620 J

• 90,480 J

• 62,329 J