Work and Power Review

What is "work" best described as in physical science?

• A force applied over time.

• A force applied over a distance.

• Being a teacher.

• A mass that is accelerating.

What is the unit for Work? (Not "W"!)

What is the correct formula for work?

How much work is done if a 5 N force is applied over a distance of 6 m?

• 5/6 J

• 6/5 J

• 30 J

• 11 J

What force is applied if 150 J of work is done over a distance of 3 m?

• 15 N

• 500 N

• 450 N

• 50 N

Over what distance is a 40 N force applied if the work done is 400 J?

• 16000 m

• 16 m

• 10 m

• 0.1 m

How much work is done if a 50 N object is lifted 4 m into the air?

What is the unit for Power?

• Joules

• Newtons

• Meters/Second

• Watts

What is the correct formula for calculating Power?

What is the power output if 500 J of work is done in 5 seconds?

• 10 W

• 100 W

• 1000 W

• 2500 W