Revision on Topic 1 until Topic 4

A fluid travels a distance of 4.5 cm in 3 seconds. Calculate the flow rate of this fluid in cm/s.

A bottle of syrup is poured down a 50 cm tray. If it takes the syrup 40 seconds to flow all the way down the tray, then what is the syrups flow rate (cm/s)?

A can of motor oil is spilt on a driveway. The oil travels 84 cm in 1 minute and 10 seconds. What is the flow rate of the motor oil?

Cooking oil with a flow rate of 2.6 cm/s flows down a tray for 15 seconds. How far down the tray would it have travelled in cm?

How many seconds would it take for a syrup with a flow rate of 0.75 cm/s to flow down a 60 cm long cookie sheet?

Two balloons are both filled with pure oxygen. One balloon is heated up while the other is cooled down. Which balloon would you expect to have the greatest flow rate of oxygen out of it if the balloon was released?

• The hotter balloon

• The cooler balloon

• They would both have the same flow rate

If the tray was cooled down, how would this affect the syrup's flow rate?

• It would go up

• It would go down

• It would not change

If you needed to make a liquid less viscous, select ALL the things you could do to lower the viscosity.

• decrease temperature

• increase temperature

• add solvent

• evaporate away solvent

Bernoulli’s principle is defined as the___________________________________________________________.

• A. velocity in a fluid remains constant as the fluid’s pressure changes

• B. pressure in a fluid remains constant as the fluid’s velocity changes

• C. Pressure in a fluid decreases as the fluid’s velocity increases

• D. Pressure in a fluid increases as the fluid’s velocity increases

State Bernoulli's principle as an equation

• The pressure, the kinetic energy per unit volume and the potential energy per unit volume of the fluid is a constant

• The pressure, the kinetic energy and the potential energy per unit volume of the fluid is a constant

• sum of the pressure, the kinetic energy per unit volume and the potential energy per unit volume of the fluid is a constant

  
  

• sum of the pressure, the kinetic energy per unit volume and the potential energy per unit volume of the fluid are equal