Science Quiz 4

Question 1

All matter is made up of extremely small particles called

Answer 1

Atoms

Question 2

Atoms combine to form what

Answer 2

Molecules

Question 3

What provides the basis for scientific understanding of all matter

Answer 3

Atomic theory of matter

Question 4

Who’s idea was the atomic theory of matter

Answer 4

John dalton

Question 5

What is the kinetic theory of matter

And who developed it

Answer 5

1) all molecules of matter are in constant motion
2) the warmer an object is the faster its molecules move

James Clark maxwell
Ludwig Boltzmann

Question 6

The faster atoms or molecules are moving the less the are affected by what

Answer 6

Cohesion

Question 7

The molecules of what move faster than a liquid

Answer 7

Solid

Question 8

The molecules of a what are able to move freely but rename close to eachother

Answer 8

Liquid

Question 9

The random motion of microscopic particle

Answer 9

Brownian motion

Question 10

The process of mixing molecules of one substance with another substance by random molecular motion

Answer 10

Diffusion

Question 11

Allows some substance to diffuse through them

Answer 11

Semipermeable

Question 12

One way diffusion through a semipermeable membrane is

Answer 12

Osmosis

Question 13

Solids that have well defined melting points

Answer 13

Crystalline

Question 14

Do not have specific melting points, but instead soften over a range of temperatures

Answer 14

Amorphous

Question 15

A change in shape when a force moves its normally stationary molecules

Answer 15

Deformation

Question 16

The ability of a solid to regain its original shape after being deformed

Answer 16

Elasticity

Question 17

How far a material can be deformed from its original shape

Answer 17

Resilience

Question 18

How strongly a material deposed deformation

Answer 18

Rigidity

Question 19

The maximum amount of permanent deformation a material can handle before breaking

Answer 19

Plasticity

Question 20

The resistance of a material to certain types of small deformations

Answer 20

Hardness

Question 21

Ranks minerals in the order of their ability to be scratched

Answer 21

Mohs scale

Question 22

Measures how easily a scale is dented by hardness

Answer 22

Brunel hardness scale

Question 23

The molecules in an object are being pulled apart

Answer 23

Stretching

Question 24

Hooks law

Answer 24

F= kx

Question 25

The opposite of stretching

Answer 25

Compression

Question 26

A combination of stretching and compression

Answer 26

Bending

Question 27

When two forces on opposite directions are side by side

Answer 27

Shear

Question 28

This can be thought of as shear in a circle

Answer 28

Torsion

Question 29

Attraction to molecules of a different substance

Answer 29

Adhesion

Question 30

Depends on the strength of the cohesion i. A liquid

Answer 30

Surface tension

Question 31

What occurred when the adhesion of Water to glass is stronger then a the cohesion between molecules

Answer 31

Meniscus

Question 32

The phenomenon in which liquids in thin tubes rose above or fall beneath their own levels

Answer 32

Capillarity

Question 33

The force exerted per unit of area

Answer 33

Pressure= force/ area

P=F/A

Question 34

Equip to one newton per square meter

Answer 34

Pastel (Pa)