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# Science Final

### The science final which covers everything this year.

Question | Answer |
---|---|

Define Independent variables | The variable that is purposely changed or manipulated for the purpose of the experiment. |

Define Dependent variables | The variable that changes in response to the independent variable |

Define Variables | Factors that change in the experiment |

Define Control Group | The trials or subjects in the experiment that do NOT change (receive the independent variable) |

Define Test Group | The trails or subjects in the experiment that receive that DO change (receive the independent variable) |

Define Constants | All the variables that are kept the same thought the experiment. (same as the control group, but terminology may be switched around. So it's good to know both, just in case.) |

Which axis do you put the independent variable on when graphing the independent and dependent variables of a experiment? | you put the independent variable on the X axis (horizontal) |

Which axis do you put the Dependent variable on when graphing the independent and dependent variables of a experiment? | you put the dependent variable on the Y axis (vertically) |

What is a line graph, what data do you put on the Y and X axis, and which are line graphs best use to represent? | Line represents the changes over time, you always put time on the X axis (ex: months, years, days, minutes etc.) you put what you are measuring change in on the y axis*. LGs best used when you are observing the changes over an object in a period of days. |

What is a Bar graph, what data do you put on the Y and X axis, and which are Bar graphs best use to represent? | Bar Graphs represent data from one trial to other trail(s) in the same experiment. You put the thing you can change* on the x axis ex) types of fruit, the year, favorite color. and on the y axis you put the data results. They are best used to COMPARE data |

What is a Pie graph, what data do you put on the Y and X axis, and which are Bar graphs best use to represent? | A pie chart is a circular chart divided into sectors, each sector shows the relative size of each value. There is no X axis or Y axis. Pie are best used to represent percentages. |

Define what a observation is? | Is the information you gather from your senses. |

Define what a inference is? | A guess/conclusion you can you can make form the info gathered |

you see a cat swiftly jump out of a tub of water, what do you observe | There is one cat in this scenario, the cat is moving fast... etc, (obvious observations, not doing to much into context) |

you see a cat swiftly jump out of a tub of water, what can you infer? | Perhaps the cat is terrified of the water, Perhaps the cat's survival instincts are kicking in.... etc (go deeper into the obersevations, doing deeper thinking based on prior knowledge or guess) |

what do you say to yourself to remember an easy way to find the independent and dependent variable in a experiment | (Independent variable) causes a change in (Dependent Variable) and it isn't possible that (Dependent Variable) could cause a change in (Independent Variable). |

please give me an example of that method. | (Time Spent Studying) causes a change in (Test Score) and it isn't possible that (Test Score) could cause a change in (Time Spent Studying). |

Identity the dependent and independent variable in each scenario for the following 2 questions. (the independent variable will be ALL CAPS, and the dependent variable have brackets [ ] around it.) make me prove the answer by asking me to do the method. | ok |

While a construction crew was digging a pool in her backyard, EMMA OBSERVED THAT DIFFERENT KINDS AND AMOUNTS OF FOSSILS were present in the area behind her house. she wondered if [changes in fossil content occurred in some pattern from Surface to deeper] | Emma observed that kinds and amounts of fossils is the independent variable. changes in fossil content in some pattern from surface to deeper is the dependent. |

Mia read that [Aloe vera promoted the healing burned tissue.] She decided to INVESTIGATE THE EFFECT OF VARYING AMOUNTS OF ALOE VERA ON THE REGENERATION OF PLANRIA. | investigate the effect of varying amounts of Aloe Vera on the regeneration of planria is the independent variable and the dependent variable is Aloe vera promoted the healing burned issue. |

What are the three key words a hypothesis must have? | if then because |

give me an example of if then and because | If I play my trumpet, then I will improve my musicianship skill, because I'm practicing the fundamentals that make up musicianship. |

State the unit convesion rule. | If you go down in the unit conversion boxes then you move the decimal right. If you go up in the unit conversion boxes then you move the decimal left. |

List all the unit conversion from largest to smallest. | Killo, hecto, deca, unit, deci, centi, mili. |

What is 5dm in km? (If struggling refer to the conversion rule) | 0.0005km |

What is 3.2hl in cl? (If struggling refer to the conversion rule) | 32000cl |

Define Speed | The distance and time an object moves |

Define Velocity | Speed and direction of an object. |

Define Aceleration | The rate at which an object changes speed or direction. |

Define Average speed | Average speed is the total distance divided by the total time |

Use the average speed equation (v=d/t) to solve the following questions. | Ok |

I ride my bike for 3hrs at 10mph. Later on I rode my bike for another 2hrs at 20mph. What is SPEED of the bike? | 3hrs * 10mph = 30mi 2hrs * 20mph = 40mi 30mi + 40mi = 70mi ------- =14mi/hr 3hrs + 2hrs = 5hrs |

I ride my bike for 4.0 kilometers in 32 minutes. Later on I rode my biker for another 5.0 kilometers in 50 minutes. What is the AVERAGE SPEED? | 4.0km + 5.0km = 9.0km ------ = 9.0km/82min 50 min + 32 min = 82min |

What is equation for distance | Distance =speed X time |

What is the equation for time. | Time = distance/speed |

What is the equation for speed. | Speed = distance/time |

What do you always put on the X axis of a graph if the one of the variables is time | You always put the time on the X axis. |

Give a acceleration examples | A plane taking off, and a slowing down car. |

In a whole number like 10 where does the decimal go? | The decimals goes after the 10 like a period a the end of a sentence. |

What is the difference between Velocity and Vectors and give an example if the difference. | Velocity is speed in a direction. And a vector is number in direction. For example if I said I went 3 meters in 3 secs then that's velocity. A vector would be like saying I went 3 meters North, without stating how fast you when. |

in a distance over time graph what does it mean to "level off"? | It means that the object is not moving. |

What is the unit that force is measured in? | Force is measured in Newton's. |

Whenever I push a textbook what forces are acting on it? | Friction, force of hand, force of gravity pushing down. |

What object will move easiest? | The book because the hand has more force than the book, if the desk had more friction, then the book would be stronger force than my hand. |

What does it mean when an object is unbalanced? | Its means that the object is moving (movement) |

What does it mean when an object is balanced? | It means that the object isn't moving (no movement) |

What does sop mean? | There is speed no matter what. |

A leaf is falling list all the forces acting on the it? | air resistance and gravity. |

What are the two things gravity depend on? | Mass and Distance |

if the distance increase then the gravitational pull will _____ | decrease |

If the mass increases then the gravitational pull will ______ | increase |

List all the different types of forces. | Applied Force- applied by another person Gravity Force- Force that earth uses to attract other objects to itself Normal Force- Support force when one object is in constant contact Air resistance- As objects fall the force that pushes back at the object |

List the last three forces (that I'm not sure that will be on the test) | Tension- Transmitted through a string Spring- Exerted by a compressed or stretched spring (This one is important ) Friction- the force that opposites a movement of a object. |

Give an example of Newton's First Law | A guy who crashes his car and fly's out the window. |

Give an example of Newton's Second Law | I'm pushing a shopping cart (force) full of milk gallons (mass). I The only way to make the cart go faster is if I take out a milk gallon or two (less mass). Another way for the cart to go fast is to have another person help which is more force. |

Give an example of Newton's Third Law. | Your sitting on a stool (action) the stool is holding you up (reaction) |

What net force must act one 50.00kg mass to give it an acceleration of 0.30m/s | F=50.0kg*0.030m/s = F=15N |

Define kinetic energy and give example | kinetic energy means that a object is moving |

Define potential energy and give example | The potential an object has to have kinetic energy. |

Define potential gravitational energy and give example | The potential an object has to become kinetic energy through gravity. |

List all types of energy and give examples | Mechanical energy, Thermal, Chemical, Electrical, Sound, Nuclear and Radiant. |

Track all the energy conversions that can happened in a handled radio. | You put batteries in the battery slot- Chemical Energy You turn the tune button - Mechanical Energy you listen to Music- Sound Energy |

When a energy type is over used the particles ______ and cause _____ energy. | When a energy type is over used the particles get more excited and become more compact and cause Thermal Energy. |

What is the Law of Conversion of Energy? | Energy can be either created or destroyed |

List all the Renewable resources covered, and example what they are | Biomass (organic material made from plants and animals), Geothermal(heat from the earth, recover as heat or steam), Hydropower, Solar, Wind |

List all the Non-Renewable resources covered, and example what they are | Oil, Natural gas (decayed sea life built up), Coal (layers of dead swamp plants), Nuclear. |

Created by:
campbell36