Fluids Science

The formula to calculate density is...

• $d=\frac{m}{v}$

• $d=\frac{v}{m}$

• $d=\frac{f}{a}$

• $d=\frac{d}{t}$

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 ...

• $FR=\frac{t}{d}$

• $FR\ =\ \frac{t}{v}$

• $FR\ =\ \frac{d}{t}$

• $FR\ =\ \frac{f}{t}$

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

Tags

NGSS.MS-PS3-1

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