Work and Power Review

Ana, has a mass of 105 kg, is walking up a set of stairs that are 5 meters high. What is Ana's work?

• 105 N

• 4425 J

• 1195.9 J

• 5145 J

Tags

NGSS.HS-PS3-1

What is the unit for mass

• meters

• seconds

• kilograms

• meters/sec

What are the units for power?

• joules

• meters

• watts

• seconds

What is the work done when a person applies a force of 20 N on a box 10 m?

• 2 J

• 20 J

• 200 W

• 200 J

What is the time take to do work of 5000 J over 50 W

• 120 seconds

• 10 seconds

• 100 seconds

• 1000 seconds

Tags

NGSS.HS-PS3-1

What is the mass of a sinking object with 1520 J of work over 8 meters? (round to the nearest whole number.)

• 190 kg

• 190 N

• 15 kg

• 19 kg

Tags

NGSS.HS-PS3-1

What are the units for work (there can be multiple answers.)

• N*m

• Watts

• Joules

• kg * m/s

What is work in science?

• having a job

• using a force to make an object move

• a push or a pull

• stored energy

Which pictures shows work in science?

• 
• 
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Mr. Ertekin used 20N to move a box 4m. How much work did he do?

• 24 J

• 5 J

• 16 J

• 80 J