Unit 7 Work and Power Notes

Multiple Choice

Work or Not Work?

Hammering a nail.

• WORK

• NOT WORK

Multiple Choice

Work or Not Work?

Pushing a person in a wheelchair.

• WORK

• NOT WORK

Multiple Choice

Work or Not Work?

A man holding 75kg above his head for 30 seconds.

• WORK

• NOT WORK

Open Ended

What is one way work, force, and motion apply to everyday life?

Multiple Choice

How much work does a horse do while moving a wagon 20 meters with a force of 300 Newtons?

• 600 J

• 60 J

• 6000 J

• 500 J

Multiple Choice

Tommy does 15 Joules of work to push his pencil 5 cm. How much force does he use?

• 3 N

• 6 N

• 75 N
• 150 N

Multiple Choice

A man is sitting on a bench with a force of 350 Newtons. How much work has he done?

• -350 N

• 350 N

• 0 N

• 1 N

Multiple Choice

How much power does it take to kick a soccer ball a distance of 20 meters with 70 Joules of work in 5 seconds?

• 13 Watts

• 14 Watts

• 20 Watts

• 70 Watts

Multiple Choice

SpongeBob lifted 12 Newtons a distance of 2 meters in 3 seconds.  

How much work is done?

• 24 J

• 6 J

• 3 J

• 60 J

Multiple Choice

SpongeBob lifted 12 Newtons a distance of 2 meters in 3 seconds.  

What is his power output? 

• 2 W

• 4 W

• 6 W

• 8 W