Physics 4.1 Work

In which of the following situations do your arms do work on books?

• holding a heavy stack of books while standing
• carrying a heavy stack of books
• dropping a stack of books onto a table
• picking up a pile of books from the floor

Work is done by the component of the force that is ___ to the objects displacement.

• Parallel

• Perpendiculul

• Zero

• Angled

How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?

• 15 J
• 45 J
• 0 J
• 5 J

The unit used to measure work is the 

• Watt
• Newton
• Joule
• meter

Energy is the ability to do  ___________.

• Nothing
• Work
• Energy
• Change

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

Tags

NGSS.HS-PS3-1

500 J of work is done by a person who uses a force of 50N to move a box, how far does it go?

• 10 m

• 0.1 m

• 25,000 m

• 10 J

Newtons are the unit for _____________.

• Work

• Distance

• Acceleration

• Force

Tags

NGSS.HS-PS2-1

A force of 125 N is applied to the handle of the lawnmower. If it creates an angle of 40 degrees, how much work is done to move the mower 20 meters?

• 1915 N

• 1607 J

• 1915 J

• 2500 J

Calculate the work done by the applied force

• 20 J

• 375 J

• 300 J

• 500 J