Flow rate & Viscosity

What is the curved surface of water called when it touches the sides of a container?

• Surface tension
• Gravity
• Meniscus
• Evaporation

Where does water flow faster in a stream or river?

• At the surface
• Along the edges
• At the center
• At the bottom

What causes the faster flow of water at the center of a stream or river?

• Surface tension
• Evaporation
• Adhesion
• Gravity

Tags

NGSS.MS-PS2-2

How does adhesion affect the flow of gases and liquids in pipes and tubes?

• Slows down the flow
• Speeds up the flow
• Causes turbulence
• Has no effect

What is the force that allows insects to walk on water's surface?

• Surface tension
• Adhesion
• Cohesion
• Gravity

Which type of fluid has greater cohesion?

• Thin fluid
• Less viscous fluid
• Viscous fluid
• Thick fluid

What is flow rate?

• The thickness or resistance to flow of a fluid
• The size of the pipe or opening the fluid is flowing through
• The volume of fluid moving past a certain point in a given amount of time
• The force pushing on the fluid

What is responsible for the curved top surface of water in a cup?

• Gravity
• Evaporation
• Surface tension
• Adhesion

What is the force of attraction between the particles of a substance called?

• Viscosity
• Cohesion
• Adhesion
• Surface tension

What is the cohesion of particles on a liquid's surface called?

• Adhesion
• Viscosity
• Flow rate
• Surface tension