Fluids

Question 1

A more dense substance will tend to _____ in a less dense substance.

Answer 1

Sink

Question 2

The amount of mass per unit volume of a substance.

Answer 2

Density

Question 3

The curved surface found where a liquid contacts the walls of its container.

Answer 3

Meniscus

Question 4

The volume of fluid moved when a solid object is placed in that fluid.

Answer 4

Displacement

Question 5

Type of flow which occurs when fluids move in irregular patterns, not in straight lines.

Answer 5

Turbulent flow

Question 6

The upward force exerted by a fluid on an object.

Answer 6

Buoyant force.

Question 7

The type of flow which occurs when fluids travel in straight, or almost straight lines.

Answer 7

Laminar flow

Question 8

The motion of liquids around solid objects.

Answer 8

Hydrodynamics

Question 9

An instrument which measures viscosity.

Answer 9

Viscometer

Question 10

The amount of matter in an object

Answer 10

Mass

Question 11

The amount of space an object occupies.

Answer 11

Volume

Question 12

The force of attraction between particles of another substance.

Answer 12

Adhesion

Question 13

The change of state from a liquid to a gas.

Answer 13

Evaporation

Question 14

The resistance of a fluid to flow or movement

Answer 14

Viscosity

Question 15

The type of buoyancy where a substance tends to rise in a fluid.

Answer 15

Positive buoyancy

Question 16

A force which acts to slow an object moving through a fluid.

Answer 16

Drag

Question 17

The speed at which a fluid moves.

Answer 17

Flow rate

Question 18

Describes buoyancy where an object tends to sink in a fluid.

Answer 18

Negative buoyancy

Question 19

The idea that the buoyant force exerted on an object immersed in a fluid is equal to the weight of the amount of fluid that the object displaces.

Answer 19

Archimedes principal

Question 20

The change of state from a liquid to a solid.

Answer 20

Freezing

Question 21

The force of gravity on an object

Answer 21

Weight

Question 22

Air or gas moving around solid objects.

Answer 22

Aerodynamics

Question 23

The change of state from a gas to a liquid

Answer 23

Condensation

Question 24

The idea that matter is made up of particles which are in constant motion.

Answer 24

Kinetic molecular theory

Question 25

The change of state from a solid to a liquid.

Answer 25

Melting

Question 26

The type of buoyancy where a substance tends to remain the same or at constant level while floating in a fluid.

Answer 26

Neutral buoyancy

Question 27

Increased attraction of particles at the surface of a liquid.

Answer 27

Surface tension

Question 28

A word used to describe systems which involve movement.

Answer 28

Dynamic

Question 29

Describes an object which is shaped to reduce drag.

Answer 29

Streamlined

Question 30

The force of attraction between particles in a substance.

Answer 30

Cohesion

Question 31

The change of state from a solid directly to a gas

Answer 31

Sublimation

Question 32

A push or a pull.

Answer 32

Force

Question 33

A less dense substance will tend to ____ in a more dense fluid.

Answer 33

Float