What is work?

What is work?

By Bevonie Taylor

Multiple Choice

Which of the following do you believe is Scientific work? Select all you think is correct

• Reading a book

• Holding a weight over your head

• Pushing a car that is stuck in mud but isn't moving

• Pushing a shopping cart in store.

Multiple Choice

Man holds a concrete block at arms length for 15 minutes

• work

• no work

Multiple Choice

Mechanic pushes a car into his garage.

• work

• no work

Multiple Choice

You take up a pencil that fell from the ground

• work

• no work

Multiple Choice

You stand at the bus stop with your book bag on shoulders.

• work

• no work

Multiple Choice

Work is done when a force moves an object in the _________ of the force that is applied.

• direction
• position
• energy

Multiple Choice

_ is done whenever a force moves an object over some distance.

• force

• work

• energy

Multiple Choice

If you are sitting still at school reading a book, you are doing work.

• false

• true

Poll

Do you understand the concept of scientific work?

• yes, I get it

• Almost there

• I'm lost

Multiple Choice

To measure work, you must ________ the force by the distance through which it acts.

• add
• subtract
• multiply
• divide

Multiple Choice

Kevin lifted a 10-newton box a distance of 1.5 meters.  How much work did he do?

• 10 newtons
• 4 joules
• 15 joules

Multiple Choice

A mountain climber who weighs 900 newtons scales a 100-meter cliff.  How much work does the climber do?

• 90,000 Joules
• 900 watts
• 1800 joules

Multiple Choice

A parent uses a force of 300 newtons to pull a toddler in a wagon for 400 meters.  How much work did the parent do?

• 12,000 newtons
• 120,000 joules
• 60,000 joules

Multiple Choice

Pushing a lawn mower requires a force of 200 newtons.  If 4,000 joules of work is performed, how far has the mower moved?

• 20 meters
• 25 meters
• 200 joules

Multiple Choice

A box was pushed 42 meters, and 13,734 joules of work was done.  How much force was used?

• 578,8287 joules
• 327 newtons
• 300 meters

Multiple Choice

A pitcher threw a ball of 2 newtons and did 330 joules of work.  How far did she throw the ball?

• 165 meters
• 52 meters
• 660 meters

Multiple Choice

A landscape worker attempted to move a 300kg boulder for 30 minutes but was unable to budge it.  How much work did the worker do?

• 2,940 newtons
• 0 joules
• 29.4 meters