Science Test Number 2

Front 1

What is matter

Back 1

Any thing with mass and volume

Front 2

What is the official name of the metric system

Back 2

The inter national system of units

Front 3

What us an atom

Back 3

The smallest particle of matter that can exist on its own

Front 4

Name three parts of atoms where they are in the atom and what charge they have

Back 4

Protons nucleus positive, newtrons nucleus no charge, electrons cerculing around the outside of the nucleus negitive

Front 5

What is the center of the atom called

Back 5

Nucleuse

Front 6

What to pieses of information dose the atomic number provid?

Back 6

Where the atom is on the piriodic table of elements and how many protons are in the nucleus

Front 7

What is mass

Back 7

The amount of stuff in an object

Front 8

What is Volume

Back 8

The amount of space an object takes up

Front 9

What is weight

Back 9

The measure of the pull of gravity on an object

Front 10

What is the atomic symbol

Back 10

Letter or letters that represent where the atom is on the piriodic table of elements

Front 11

What is a Molecule

Back 11

2 or more atoms put together

Front 12

What is an Element

Back 12

A group of the same types of atoms put together

Front 13

What is Condensation

Back 13

Changing from a gas state of matter to a liquid state of matter

Front 14

What is Sublemation

Back 14

Changing from a solid state of matter to a gas state of matter skipping liquid state of matter

Front 15

What is vaporization

Back 15

Changing from a liquid state of matter to a gas state of matter

Front 16

What is viscosity

Back 16

Liquids resistance to flow

Front 17

List the three states of matter

Back 17

Solid liquid gas

Front 18

Describe the arrangement of the atoms and how they move in a solid

Back 18

They are in straight rows and columns and they just vibrate

Front 19

Describe the arrangement of atoms and how they move in a liquid

Back 19

They can move around freely but have to stay connected

Front 20

What must happen to the atoms of an object in order for it to change states of matter

Back 20

You ether add thermal enargey subtract thermal enargey

Front 21

Name a liquid that has high viscosity

Back 21

Honey or syrup

Front 22

How can the viscosity of a liquid be lowered

Back 22

By adding thermal enargey

Front 23

List to types of vaporization

Back 23

Evaporation and boiling

Front 24

Where dose evaporation the place in a liquid

Back 24

On the liquids surface

Front 25

Explain what is happening during the process of boiling

Back 25

1. Add thermal enargey

2. It causes atoms to move faster

3. They brake apart and it makes a gas

4. It creates a bubble

5. The bubble rises to the top

6. The bubble pops

7. It releases gas

Front 26

What are the base unites for measuring with the metric system

Back 26

Meter liter gram

Length volume mass

Front 27

Solid

Back 27

Definite shape and definite volume

Front 28

Liquid

Back 28

No definite shape definite volume

Front 29

Gas

Back 29

No definite shape no definite volume

Front 30

Chemical properties

Back 30

Describes matters ability to change into something new

Front 31

Flamibilitey

Back 31

The ability to burn

Front 32

What are two types of properties of matter

Back 32

Chemical and phisical

Front 33

What is a phisical property of matter

Back 33

Change in matter that detects one or more of its physical properties

Front 34

List six physical properties of matter

Back 34

1. Mass

2. Volume

3. Density

4. Magnitisem

5. Conductivity of electricity

6. Flexibility

Front 35

List two examples of a physical change

Back 35

1. Wood burning

2. Bake in a cake

Front 36

List six signs of a chemical change

Back 36

Color change, odor change, formation of a solid, heat, light, formation of a gas, sound.

Front 37

How can you determine if a change in matter is a chemical or physical change

Back 37

Chemical change it turns into something new physical change you can almost always change it bake into what it was before

Front 38

How can you tell if the force applied to an object is balanced or unbalanced

Back 38

If it is balenced the motion will stay the same and unbalanced the motion will change

Front 39

List the three types of friction

Back 39

Sliding friction, rolling friction, and fluid friction

Front 40

Force

Back 40

Push or pull

Front 41

Inertia

Back 41

Resistance of an object to change its motion

Front 42

Friction

Back 42

The force that one surface exerts on another surface when the two rub against each other

Front 43

Motion

Back 43

When the distance between to objects changes you have a refrence point that is usually stationary

Front 44

Newton's first law

Back 44

An object at rest will remain at rest and an object in motion Will remain in motion unless acted apone by an unbalanced force

Front 45

Newton's second law

Back 45

The larger an objects mass the larger the force required to change the motion of that object

Front 46

Newton's third law

Back 46

For every action there is an equal and opposite reaction

Front 47

Provid 2 examples of when your body experience inertia

Back 47

When you turn a corner in the car and your body leans to the side because you want to keep going in the same direction and when you are in a roller coaster and it stops so you lean forward because you want to keep moving

Front 48

Energy

Back 48

Ability to do work or cause change in matter

Front 49

What are the two main types of energy

Back 49

Potential and kinetic

Front 50

Witch of energy dose a rock sitting on top of the hill have explain why

Back 50

Gravitational potential energy because it has the potential to fall

Front 51

What is elastic potential energy

Back 51

The enargey that you get when an object is stretched or compressed

Front 52

What is kinetic energy

Back 52

Energy of moving matter

Front 53

What dose the law of conservation of energy say

Back 53

Energy can not be created of destroyed it can only change forms

Front 54

List seven forms of energy

Back 54

Mechanical chemical electrical nuclear thermal electromagnetic sound

Front 55

What two factors affect the amount of gravitational potential energy an object has

Back 55

The hight and the position of that object

Front 56

What is a machine

Back 56

Device that makes work easier or more efficient

Front 57

List the three ways a machine makes work easier

Back 57

Changing the amount of force exerted, changing the distance the force is exerted, and changing the distance the force is exerted

Front 58

List the six simple machines

Back 58

Ramp, wedge, screw, lever, wheel and axle, and a pulley

Front 59

Describe an inclined plane

Back 59

It is a slanted surface that increases the distance that you move the object but it uses less force

Front 60

Explain how an inclined plane makes work easier

Back 60

More distance less force

Front 61

Describe a screw

Back 61

Inclined plane wrapped around a cylinder

Front 62

Explain how the number of threads on a screw or bolt relates to the length of the inclined plane

Back 62

If the threads are closer together than the inclined plane is longer and if they are farther apart the inclined plane is shorter

Front 63

How dose the number of threads on a screw or bolt affect the amount of force required to turn the screw or bolt why

Back 63

If the threads on a screw are closer together it is easier to screw in but it takes more time and if the threads are farther apart it is harder to screw in but it takes less time

Front 64

Describe a lever

Back 64

Bar that is free to pivot or rotate on a fixed point

Front 65

What is a pivot point of a lever called

Back 65

Fulcrum

Front 66

Draw and label a picture of a first class lever provide a real world example

Back 66

Draw a picture of a Tetertoter where the input is on the left and the out put is on the right and the fulcrum in the middle

Front 67

Draw and labe picture of a second class lever provide a real work example

Back 67

Draw a picture of a wheelbarrow the wheel is the fulcrum the out put is where the object is and the input is the force that you are putting into the handle

Front 68

Draw and labe a picture of a third class lever provid a really life example

Back 68

Draw a picture of a fishing pole where the in put is on the left out put is on the eight and the fulcrum is your elbow

Front 69

Describe a pulley

Back 69

Grooved wheel with a rope wrapped around it

Front 70

List two types of pulls

Back 70

Fixed pull and movable pully

Front 71

Wich type of pully multiply the input force

Back 71

Movable

Front 72

Why do objects seem lighter in water than in air

Back 72

Because water exerts a force on all submerged objects

Front 73

What is the force water applies to objects called

Back 73

Boyant force

Front 74

Why dose water pressure increase as you go deeper

Back 74

Because there is more water on top of you that is pushing down on you

Front 75

Where on a submerged object is the pressure the greatest

Back 75

The bottom

Front 76

Explain what water displacement is

Back 76

It is when you put something in the water and that object moves the water to make room for the object

Front 77

How much water dose a submerged object displace

Back 77

The same amount of volume as the object

Front 78

What must an object do in order for it to float

Back 78

Displace the same amount of water weight as the object weights

Front 79

Conduction

Back 79

The movement of thermal enargey by direct atom to atom contact

Front 80

Convection

Back 80

The movement of thermal enargey in fluids

Front 81

Thermal enargy

Back 81

Enargy in the atoms of all matter

Front 82

Conductors

Back 82

Metal that allows enargy to pass through it easy

Front 83

What Is heat

Back 83

How we fell thermal enargy moving

Front 84

What are the three ways that thermal enargy moves

Back 84

Conduction

Convection

Radiation

Front 85

What are the seven colors of visible light

Back 85

Roy g biv

Red orange yellow green blue indigo violet

Front 86

What are we seeing when we see the color white

Back 86

All of the colors being reflected of of the object

Front 87

Explain what we are seeing when we see black objects

Back 87

None of the colors are being reflected back at us so we are seeing a blank hole in space

Front 88

Why do dark colored objects get hotter than light colored objects

Back 88

Because they absorbe more radiation a white colored objects do not absorbed any radiation

Front 89

What are three examples of good insleators

Back 89

Glass plastic and wood

Front 90

Wich color of visible light has the longest wavelength

Back 90

Red

Front 91

Explain why solid objects expand when they gain thermal enargy

Back 91

Because atoms start to move faster and spread apart

Front 92

When visible light hits an object what are the two possible actions the object can do to the light

Back 92

Absorb it or reflect it

Front 93

Explain how we see objects of different colors

Back 93

Because of the different wavelengths that are being reflected off of that object and the other colors get absorbed