100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Physics Chapter 9 Question and answers correctly solved $13.49   Add to cart
Quickly navigate to
Preview
  2.  
  3. PHYSICS
  4.  
  5. PHYSICS

Exam (elaborations)

Physics Chapter 9 Question and answers correctly solved

 8 views  0 purchase
  • Course
  • PHYSICS
  • Institution
  • PHYSICS

Physics Chapter 9 Question and answers correctly solved Physics Chapter 9 In physics, work is defined as - correct answer e. force times distance If you lift two loads up one story, how much work do you do compared to lifting just one load up one story? - correct answer d. twice as much...

[Show more]

Preview 2 out of 7  pages

Document information

  • October 19, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

Written for

  • PHYSICS
  • PHYSICS

Seller

avatar-seller
Academia199

Reviews received

Content preview

Physics Chapter 9
In physics, work is defined as - correct answer ✔e. force times distance


If you lift two loads up one story, how much work do you do compared to lifting
just one load up one story? - correct answer ✔d. twice as much


If you lift one load up two stories, how much work do you do compared to
lifting one load up only one story? - correct answer ✔d. twice as much


If Nellie Newton pushes an object with twice the force for twice the distance,
she does - correct answer ✔c. four times the work


The unit of work is the - correct answer ✔c. joule


Power is defined as the - correct answer ✔c. work done on an object divided
by the time taken to do the work


The unit of power is the - correct answer ✔e. watt


Potential energy is the energy an object has because of its - correct answer
✔c. location


The amount of potential energy possessed by an elevated object is equal to -
correct answer ✔d. the work done in lifting it


Kinetic energy of an object is equal to - correct answer ✔b. one half the
product of its mass times its speed squared

, How much farther will a car traveling at 100 km/s skid than the same car
traveling at 50 km/s? - correct answer ✔d. four times as far


An arrow in a bow has 70 J of potential energy. Assuming no loss of energy to
heat, how much kinetic energy will it have after it has been shot? - correct
answer ✔d. 70 J


Energy is changed from one form to another with no net loss or gain. - correct
answer ✔c. Always true


As a pendulum swings back and forth - correct answer ✔e. all of the above


When a car's speed triples, its kinetic energy - correct answer ✔d. increases
by nine times


Rockets are launched from an airplane in the forward direction of motion. The
kinetic energy of the airplane will be - correct answer ✔c. decreased


A job is done slowly, and an identical job is done quickly. Both jobs require the
same amount of work but different amounts of - correct answer ✔b. power


Which requires more work: lifting a 70-kg sack vertically 2 meters or lifting a
35-kg sack vertically 4 meters? - correct answer ✔c. both require the same
amount of work


A ball is thrown into the air with 100 J of kinetic energy which is transformed to
gravitational potential energy at the top of its trajectory. When it returns to its
original level after encountering air resistance, its kinetic energy is - correct
answer ✔c. less than 100 J

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Academia199. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $13.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75057 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$13.49
  • (0)
  Add to cart