Elastic modulus e - Study guides, Class notes & Summaries

Chapter 03: Physical and Mechanical Properties of Dental Materials MULTIPLE CHOICE 1. Which type of bond occurs when two atoms share electrons in their outer shell, creating full shells for both? a. Ionic bond b. Covalent bond c. Metallic bond d. Hydrogen bond ANS: B Covalent bonds occur when two atoms share electrons in their outer shell, creating full shells for both. Covalent bonds are very strong. Diamond is a good example of a strong covalent bond; it is hard and has a high...

Two forces of equal strength F pulling (or pushing) in opposite directions along an axis of symmetry of a solid cause the solid to be in tension (or compression), and the ratio ofF to the solid's cross-sectional area A (perpendicular to the direction of the forces) is called stress. A tensile stress causes the solid to lengthen, while a compressive stress causes it to shorten. In either case, the ratio of the magnitude of the change in length, t.L, to the original length, 1.{), of the...

FURTHER MATHEMATICS Paper 2 Mechanics Friday 19 May 2023 Afternoon Time allowed: 1 hour 30 minutes Materials  You must have the AQA Formulae and statistical tables booklet for A‑level Mathematics and A‑level Further Mathematics.  You should have a graphical or scientific calculator that meets the requirements of the specification.  You must ensure you have the other optional Question Paper/Answer Book for which you are entered (either Discrete or Statistics). You will have ...

1. Prefix units 2. Uncertainties Adding or subtracting- Add the absolute uncertainties Multiplying or dividing- Add the percentage uncertainties Raising to a power- Multiply the percentage uncertainties by the power 3. Percentage un- certainty in the gradient uncertainty = ½(line of best fit - line of worst fit) Percentage uncertainty = uncertainty ÷ gradient of best fit line (× 100) 4. Speed Rate of change of distance 5. Displacement The distance an object has t...

1. Title: Deflection and Bending of Beam 2. Object: ● To measure and determine the parametric form of the beam deflection. ● To measure and determine the parametric form of the bending strain. 3. Venue: HW G14. 4. Introduction: ● To figure out the relationship between the deflection and the applied force. ● To figure out the relationship between the bending strain and bending moment. 5. PROCEDURE A. Apparatus Item Quantity Rectangular beam 1 Dial gauge 1 Digital strain me...

Hooke's Law>>> ∆F = k∆x where k is the stiffness of the object Stress>>> σ=F/A where F is force and A is cross sectional area Strain>>> ε=∆x/x where x is the original length of the material and ∆x is the extension Young Modulus>>> Stress/Strain Tensile stress/strain>>> Causes the length of the material to increase, the forces act away from the center Compressive stress/strain>>> Causes the length of the material to...

Hooke's Law>>> ∆F = k∆x where k is the stiffness of the object Stress>>> σ=F/A where F is force and A is cross sectional area Strain>>> ε=∆x/x where x is the original length of the material and ∆x is the extension Young Modulus>>> Stress/Strain Tensile stress/strain>>> Causes the length of the material to increase, the forces act away from the center Compressive stress/strain>>> Causes the length of the material to...

Medical Physics ALL MCQs; 1st year QUESTION AND CORRECT ANSWER 1. Sound amplification in the outer ear (auditory canal)is affected by: a. Sound speed b. Sound pressure c. Sound amplitude - CORRECT ANSWER-b. Sound pressure 2. Prolonged exposure to loud noise can cause permanent damage to: a. The air conductivity (of the ear) b. The structure of the eardrum (tympanic membrane) c. Inner ear - CORRECT ANSWER-c. Inner ear 3. The loss of elasticity (stiffening) of the tympanic membrane will ...

Hooke's Law>>> ∆F = k∆x where k is the stiffness of the object Stress>>> σ=F/A where F is force and A is cross sectional area Strain>>> ε=∆x/x where x is the original length of the material and ∆x is the extension Young Modulus>>> Stress/Strain Tensile stress/strain>>> Causes the length of the material to increase, the forces act away from the center Compressive stress/strain>>> Causes the length of the material to decre...

The Science and Engineering of Materials, 7e Askeland SM TestBank The Science and Engineering of Materials, 7e Askeland SM1 © 2016 Cengage Learning. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. Chapter 1: Introduction to Materials Science and Engineering 1-1 Define materials science and engineering (MSE). Solution: Materials science and engineering (MSE) is an interdisciplinary field that studies and manipulates the compositi...