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WorksheetsFluids Science
Total questions: 20
Worksheet time: 20mins
The formula to calculate density is...
d=vm
d=mv
d=af
d=td
If an object's density is more than the density of the fluid it is in, it will...
float
sink
Which is more dense: freshwater (d=1.0g/ml) or saltwater (d=1.03g/ml)
freshwater
saltwater
A 500 mL sample of fluid has a mass of 2000 g. What is its density?
0.25 g/mL
2500 g/ml
4 g/ml
1,000,000 g/ml
Buoyancy is
an upward force
a downward force
Viscous fluids are...
thin
thick
Viscosity of fluids can be better understood by measuring a fluid's ...
temperature
mass
flow rate
force rate
The formula for flow rate is ...
FR=dt
FR = vt
FR = td
FR = tf
A flow of lava travels across a Hawaian beach and travels 1 km in 2 hours. What is its flow rate?
2 km/hr
0.5 km/hr
20 km/hr
10 km/hr
Tomato1 ketchup has a flow rate of 15 cm/s. Redzest has a flow rate of 18 cm/s. Which one has the highest viscosity?
Tomato1
Redzest
Which of these flow rates indicate a low viscosity fluid?
1 cm/s
5 cm/s
10 cm/s
100 cm/s
Pressure is calculated using the formula:
P=vf
P=va
P=af
Pressure and force are the same.
True
False
1 Pascal is equivalent to
1 Newton per cm2
1 metre squared per Newton
1 Newton per m2
A 500 N person walks on the snow wearing shoes with an area of 0.1m2. They then change and put on snowshoes with an area of 1m2. Which situation puts the most pressure on the snow?
shoes
snowshoes
What pressure is created in a 1000 m2 pool holding of 75000 N of water?
75 Pa
750 Pa
7500 Pa
75 000 000 Pa
In an enclosed pressurized system, such as hydraulics or pneumatics, the pressure acts...
upwards
downwards
sideways
in all directions
Pneumatics is the name for an enclosed, pressurized system filled with...
water
air
oil
helium
When you put an input force of 100N into a pressurized system with an input cylinder of 100mL and an output cylinder of 10 mL, describe the pressure you feel.
easy to push / low pressure
moderate challenge / medium pressure
hard to push / high pressure
When you put an input force of 100N into a pressurized system with an input cylinder of 10mL and an output cylinder of 100 mL, how much does the system multiply the force?
1
10
100
1000
