Quiz on Chapter 7 and 8

What is the unit of angular velocity?

• kg/m^3

• N/m^2

• rads-1

• m/s

What does angular acceleration measure?

• Rate of change of pressure

• Rate of change of mass

• Rate of change of linear velocity

• Rate of change of angular displacement

Which of the following is true for uniform circular motion?

• There is no centripetal acceleration

• There is only tangential acceleration

• Linear velocity is constant

• Angular acceleration is zero

What is the relationship between linear velocity and angular velocity?

• v = ωr

• v = r/ω

• v = ω^2r

• v = ω + r

What is the formula for centripetal acceleration?

• a = rω

• a = ω^2r

• a = r/v^2

• a = v^2/r

What does Pascal's principle state?

• Pressure is inversely proportional to area

• Pressure increases with depth

• Pressure is transmitted uniformly in a fluid

• Pressure is constant in all directions

What is the buoyant force equal to?

• Weight of the fluid displaced

• Weight of the fluid above the object

• Weight of the object

• Weight of the object in air

What is the unit of pressure?

• Pascal

• Joule

• kg/m^3

• N/m^2

What is the definition of density?

• Volume per unit mass

• Mass per unit volume

• Weight per unit volume

• Force per unit area

What happens to the pressure in a fluid as depth increases?

• It fluctuates

• It increases

• It remains constant

• It decreases