UExcel Physics: Study Guide & Test Prep  /  Science Courses

Test Prep Plan - Take a practice test

Take this practice test to check your existing knowledge of the course material. We'll review your answers and create a Test Prep Plan for you based on your results.
How Test Prep Plans work
1
Answer 50 questions
Test your existing knowledge.
2
View your test results
Based on your results, we'll create a customized Test Prep Plan just for you!
3
Study smarter
Study more effectively: skip concepts you already know and focus on what you still need to learn.

Equilibrium and Elasticity Chapter Exam

Practice Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. For an object in static equilibrium, the sum of the forces and the sum of the torques must be equal to zero. What else must be true?

Answers:

Question 2 2. One of the steps of our static problem solving methods has us making a drawing. What sort of drawing should it be?

Answers:

Question 3 3. You've gotten to the step where you are making your calculations. You have two unknown variables that you are solving for. What is the minimum number of formulas you need to solve for these two variables?

Answers:

Question 4 4. When solving a statics problem, what is the very first step we take?

Answers:

Question 5 5. In a statics problem what physical quantities are we generally solving for?

Answers:

Page 2

Question 6 6. There are three classes of levers. What are the positions on a lever we look at to determine its class?

Answers:

Question 7 7. What do we look at to tell us how effective a simple machine is?

Answers:

Question 8 8. An inclined plane can be viewed in 2D as a right angle triangle. The three sides of the inclined plane triangle are a length that travels horizontal to the ground, a height perpendicular to the ground, and a slope at some angle to the ground. Using two of these three sides, what is the equation for the mechanical advantage of an inclined plane?

Answers:

Question 9 9. A simple machine can alter the magnitude and/or direction of a force. What is an example of a simple machine that alters the direction but not the magnitude of a force?

Answers:

Question 10 10. How can we determine the mechanical advantage of a pulley system?

Answers:

Page 3

Question 11 11. When we divide stress by strain we get a measure of the stiffness of a material. What do we call this?

Answers:

Question 12 12. What does Hooke's law tell us about the relationship between stress and strain?

Answers:

Question 13 13. A stress-strain curve can be separated into two ranges called the elastic and plastic regions. What is the point that marks where the curve changes from one region to the other?

Answers:

Question 14 14. How are stress and strain related to each other?

Answers:

Question 15 15. The general equation for strain is change in length divided by the original length of the object. Two of the most common types of stress and strain are tensile and compressive stress and strain. If we were to create two separate equations for tensile and compressive stress, what would the difference between them be?

Answers:

Page 4

Question 16 16. What ratio do we look at for finding a shear or bulk modulus?

Answers:

Question 17 17. Both bulk stress and pressure are forces per unit area. How do we tell the difference between the two?

Answers:

Question 18 18. In what way must a force be applied to an object in order to create normal stress and strain within it?

Answers:

Question 19 19. An object is under shear stress and strain. In what way is the force acting on it?

Answers:

Question 20 20. If an object is under bulk stress and strain, what must be true about the force acting on it?

Answers:

Page 5

Question 21 21. Which of the following is true for an object in neutral equilibrium?

Answers:

Question 22 22. What do we call the ability of an object to maintain its balance after being disturbed?

Answers:

Question 23 23. Which of the following is true for an object in stable equilibrium?

Answers:

Question 24 24. Using the center of gravity of an object, how do we tell when the object has reached its tipping point?

Answers:

Question 25 25. What is one way you might increase the stability of an object?

Answers:

Page 6

Question 26 26. When an object is in rotational equilibrium the sum of which external property acting on the object must equal zero?

Answers:

Question 27 27. When an object is in translational equilibrium the sum of which external property acting on the object must equal zero?

Answers:

Question 28 28. Which of the following is an example of an object experiencing rotational motion?

Answers:

Question 29 29. What is true about the velocity an object can experience while under translational equilibrium, and the angular velocity an object can experience while under rotational equilibrium?

Answers:

Question 30 30. Which of the following is an example of an object experiencing translational motion?

Answers:

Equilibrium and Elasticity Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Support