Practice Gravity Resistance - 8.3 | Getting Started 14 | Construction Engineering & Management - Vol 1
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Typing
Memory
Math
English Adventures
Knowledge

8.3 - Gravity Resistance

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define rolling resistance.

💡 Hint: Think about how tires interact with different surfaces.

Question 2

Easy

What factor greatly reduces rolling resistance on a hard surface?

💡 Hint: Consider what keeps tires from sinking or dragging.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is rolling resistance driven by?

  • Weight of machine
  • Type of fuel
  • Speed of machine

💡 Hint: Think about what happens when machines roll on softer surfaces.

Question 2

True or False: Higher tire pressure on a soft surface reduces rolling resistance.

  • True
  • False

💡 Hint: Consider how tires behave differently on hard vs. soft surfaces.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A construction vehicle with a gross weight of 40,000 kg is moving on a gravel road with a rolling resistance of 90 kg per ton. If the vehicle sinks 4 cm into the ground, calculate the total tractive effort required.

💡 Hint: Break down the rolling resistance into weight and penetration force.

Question 2

Discuss how machinery would operate differently on a wet, muddy road compared to a dry, firm surface. What implications does this have for estimated power requirements?

💡 Hint: Consider factors like rolling and penetration resistance in context.

Challenge and get performance evaluation