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WorksheetsFluids and materials
Total questions: 19
Worksheet time: 50mins
What does viscosity mean?
How close the particles are together.
The amount of matter in a substance.
How easily a fluid flows.
How dense a fluid is.
Based on their density, which substance will sink in water?
olive oil 0.92 g/cm3
gasoline 0.69 g/cm3
skim milk 1.04 g/cm3
ethanol (fuel) 0.789 g/cm3
Determine the weight of an object that measures 2.4 m2 and exerts 398 Pa of pressure.
398 N
955 N
69.2 N
166 N
An object displaces 30 mL of fluid. The weight of the fluid displaced is 7 N. The weight of the object is 9 N. What is the upthrust force that is acting on the object?
30 N
2 N
7 N
9 N
Upthrust is defined as...
the weight of the fluid displaced
the volume of the fluid displaced
The weight of the object
Lift
What is the volume of a sphere?
4πr2
34πr3
43πr2
πr2
For a small sphere falling at terminal velocity, which statement is true?
Weight = upthrust + viscous drag
Weight + upthrust = viscous drag
Weight + viscous drag = upthrust
Weight = upthurst
Ductile
elastic deformation under tensile stress
plastic deformation under tensile stress
elastic deformation under compressive stress
plastic deformation under compressive stress
Malleable
elastic deformation under tensile stress
plastic deformation under tensile stress
elastic deformation under compressive stress
plastic deformation under compressive stress
Tough
Energy required to break or fracture a material
Energy required to cause plastic deformation
Energy required to cause elastic deformation
Area above a stress strain graph
Youngs modulus
Stress x strain
Strain / stress
Stress / strain
Strain x stress
Stiffer materials...
Have a steeper gradient
Have a smaller gradient
Have a non-linear gradient
Deform easily
The area under a stress strain graph gives
Work done
Work done per unit volume
Volume
Force
What happens to the velocity of a fluid when the diameter of a pipe is decreased?
Stays the same
Decreases
Reaches terminal velocity
Increases
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