Bad Physics Teaching: Solve Grade 11 Physics Question

  • Thread starter Thread starter SRForum
  • Start date Start date
  • Tags Tags
    Physics
Click For Summary
SUMMARY

The discussion centers on a Grade 11 Physics student struggling with a question about calculating average acceleration for a rollercoaster that accelerates from 0 to 160 km/h in 7 seconds. The student expresses frustration over inadequate teaching support and seeks guidance on solving the problem. Key calculations involve determining acceleration in km/h per second, m/s², and in g's (where g = 9.8 m/s²). Participants emphasize the importance of showing attempts at problem-solving to facilitate better assistance.

PREREQUISITES
  • Understanding of basic physics concepts, particularly acceleration.
  • Familiarity with unit conversions between km/h and m/s.
  • Knowledge of gravitational acceleration (g = 9.8 m/s²).
  • Ability to interpret and apply physics problem-solving techniques.
NEXT STEPS
  • Learn how to calculate average acceleration using the formula: acceleration = (final velocity - initial velocity) / time.
  • Study unit conversion methods between kilometers per hour and meters per second.
  • Explore the concept of gravitational acceleration and its applications in physics problems.
  • Review problem-solving strategies for physics, including showing work and reasoning through examples.
USEFUL FOR

This discussion is beneficial for Grade 11 students studying physics, educators seeking to improve teaching methods, and anyone interested in understanding the fundamentals of acceleration and problem-solving in physics.

SRForum
Messages
6
Reaction score
0
Bad Physics Teach! :(

Hello all,

I am in grade 11 Physics, and have a question that I need to solve. My teacher has repeatedly said that he hates physice, "I don't want to teach it, and you don't want to learn it", and offers virtually no help, yet assigns massive ammounts of work! I have over 100 questions (in this same format to do), I was wondering if I have an example, someone could walk me through it, so that I can do the rest. I've had many attempts, and every time that I had shown him, he has just said "nono, Look it up in the textbook". Thanks again, Here's the quetion.

A rollercoaster accelerates from 0-160 km/h in 7 seconds. Calculate the average acceleration in:

a) km/h per s


b) m/s(squared)


c) g's (9.8 m/s).
 
Physics news on Phys.org
Hi SRForum, and welcome to Physics Forums!

First of all, I think you should report this guy to his boss. He is being paid to do a job.

Second, we do have a requirement here at PF that you show an attempt at the problem (https://www.physicsforums.com/showthread.php?t=28). So if you'd be so kind as to post what you think is the best of your "many attempts", we'd appreciate it. Then we can explain what is going wrong.
 
Every one of those questions depends on knowing the definition of "acceleration". What is it?
 

Similar threads

Grade 11 Question: Newton's Third Law -- Calculating acceleration of an airboat
  • · Replies 3 ·
Replies
3
Views
3K
Question about Projectile Motion: Throwing a Flower Pot from a Balcony
  • · Replies 18 ·
Replies
18
Views
2K
Solving for Work Done When Accelerating a Mass
  • · Replies 3 ·
Replies
3
Views
1K
Help with question on motion: Avoiding a rear-end collision
  • · Replies 6 ·
Replies
6
Views
3K
What Are the Most Challenging Questions in Grade 11 Nuclear Physics?
  • · Replies 3 ·
Replies
3
Views
3K
Some quick questions concerning uniform acceleration and linear motion
  • · Replies 2 ·
Replies
2
Views
2K
Alternatives to Mastering Physics in teaching E&M and Optics
  • · Replies 1 ·
Replies
1
Views
5K
Average Acceleration and Time Taken to accelerate
  • · Replies 3 ·
Replies
3
Views
3K
Grade 11 Intro to Physics question - distance a football travels
  • · Replies 12 ·
Replies
12
Views
3K
Easy N2L question grade 11 physics
  • · Replies 6 ·
Replies
6
Views
3K