Physics Quiz on Crystal Structure and Elasticity

What is the defining feature of a crystal?

• Random arrangement of atoms

• Highly irregular structure

• Regular repeating pattern

• Amorphous shape

Which crystal system has all three axes of different lengths and inclined towards each other?

• Triclinic System

• Trigonal System

• Monoclinic System

• Orthorhombic System

What is the unit of Young's Modulus?

• m^2

• N

• N/m^2

• N/m

In which crystal system are the angles and axes at right angles to each other with different lengths?

• Triclinic System

• Trigonal System

• Orthorhombic System

• Monoclinic System

What is the force constant formula for a wire?

• F = EAe/L

• F = %e/L

• F = %e

• F = EAαӨ

Which crystal system has three axes inclined towards each other and of the same length?

• Trigonal System

• Orthorhombic System

• Triclinic System

• Monoclinic System

What is the energy stored formula in an elastic material?

• W = ½ %x2

• W = EAe2/2L

• W = Ee2/2L2

• W = f/2 x e

Which crystal system has three axes at right angles to each other with one inclined?

• Trigonal System

• Triclinic System

• Monoclinic System

• Orthorhombic System

What is the unit of stress?

• m^2

• N

• N/m^2

• N/m

In which crystal system are the angles and axes at right angles to each other?

• Trigonal System

• Orthorhombic System

• Monoclinic System

• Triclinic System