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 Science 20 Question and answers already passed $13.99   Add to cart
Quickly navigate to
Preview
  2.  
  3. PHYSICS
  4.  
  5. PHYSICS

Exam (elaborations)

Physics Science 20 Question and answers already passed

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

Physics Science 20 Question and answers already passed Physics Science 20 average speed- description of motion when speed is changing the total distance over the total time instantaneous speed- the speed in an instant - correct answer average speed instantaneous speed scalar- only magn...

[Show more]

Preview 2 out of 5  pages

Document information

  • October 19, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

Written for

  • PHYSICS
  • PHYSICS

Seller

avatar-seller
Academia199

Reviews received

Content preview

Physics Science 20
average speed- description of motion when speed is changing the total
distance over the total time


instantaneous speed- the speed in an instant - correct answer ✔average
speed
instantaneous speed


scalar- only magnitude
vector- magnitude + direction - correct answer ✔scalar
vector


distance- is measured along a path without regard to direction


displacement- the measure from the starting point to the end point


average velocity- the total displacement over the total time (with direction)
indicated how fast an object changes position, and the direction of this change
- correct answer ✔distance
displacement
average velocity


the slope of a line of a position-time graph gives the speed of the object


the area under a line of a velocity time graph gives the displacement of an
object - correct answer ✔slope

, the area under a line of a velocity time graph


acceleration- a change in velocity. (can mean a change in speed or direction


deceleration- a negative change in speed (slowing down)


uniform motion- acceleration described by a sloping, straight line on a
velocity-time graph - correct answer ✔acceleration
deceleration
uniform motion


The oncoming drivers visibility is reduced because of the glare in their eyes
which can lead to accidents.
They also emit more blue light than other headlights, so it takes a long time to
adapt back to seeing in the dark - correct answer ✔Describe two risks
associated with the use of HID headlights.


They illuminate more distance ahead of the vehicle, so the driver can see
farther, so the driver would notice something on the road earlier.
They improve visibility in the rain. - correct answer ✔Describe two benefits
associated with the use of HID headlights.


For travel where there is a change in direction or where the movement is not
in a straight line, the magnitude of the average velocity will be less than the
average speed. - correct answer ✔For many journeys, the magnitude of the
average velocity is less than the average speed. Describe a situation where
this relationship is true.


If they only went to intersections where the speed limit was 70km/h or less
they would not get a whole representation of different speed limits and how

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 $13.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

78140 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
$13.99
  • (0)
  Add to cart