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Physical Science EOC
NJH PS EOC Study Guide
| Question | Answer |
|---|---|
| Unit of Mass | Gram |
| Unit of Volume | Liter |
| Unit of Length | Meter |
| Order from largest to smallest: Meter, Millimeter, Centimeter, Kilometer | 1. Kilometer 2. Meter 3. Centimeter 4. Millimeter |
| What unit would you use to measure the distance from Boise to Portland? | Kilometer |
| What unit would you use to measure the length of the classroom? | Meters |
| What unit would you use to measure the diameter of your pencil lead? | Milimeters |
| What unit would you use to measure the mass of a paperclip? | A Gram |
| Hypothesis | Educated Guess, should be testable |
| Variable | Item I am testing for |
| Procedure | Something I should read before I test stuff |
| Data | Results, Fact and Figures |
| Obervations | Using my 5 senses to gather information |
| What is the volume of a square 6 cm tall, the base is 7 cm long, and the width is 2 cm. | 84cm squared (3) |
| If a block falls into a glass of water filled to 17 L and the water rises to 34 L then what is the volume of the block | 17mL |
| Solid: Shape (definite or not?), Volume (definite or not?), and Density (High, Medium, or Low?) ? | Definite, Definite, High |
| Liquid: Shape (definite or not?), Volume (definite or not?), and Density (High, Medium, or Low?) ? | No, Yes, Medium |
| Gas: Shape (definite or not?), Volume (definite or not?), and Density (High, Medium, or Low?) ? | No, No, Low |
| What is the Formula for Average Speed? | Total Distance over Total Time |
| If a plane travels 300 km in 5 hours, what is the average speed? | 60 km/hrs |
| Acceleration is a change in _____________ or______________. | Speed, Direction |
| If a bicycleist is traveling at a constant speed, but makes a turn to the west, has acceleration taken place? | Yes |
| Formula for Acceleration | Velocity (final) minus (-) velocity (initial) divided by Time |
| If a car is stopped, then accelerates to 60 miles/ hour in 3 seconds, what is the acceleration? | 20 mph/sec |
| What happens on a graph when there is a straight line? | The person is traveling at a constant Velocity. |
| The Next Questions Are True and/or False | Ya........ They are... and you should explain your reasoning.... |
| Your Weight would be the same on the Earth as on the Moon. | FALSE: There is less Gravity on the moon |
| A person would weigh the same on Bogus Basin as they would at sea level. | FALSE: You are farther away from the core of the earth |
| All objects have gravity | TRUE: Just because... |
| Gravitational pull is affected by how close are to each other. | TRUE |
| The mass of an object is the same on Earth as on the Moon. | TRUE |
| Your Weight is due to the force of gravity pulling on your mass. | TRUE |
| THE TRUE FALSE QUESTIONS ARE OVER | OVER? YES!!! |
| Why is the Gravitational force of the moon so much different then the Earth's? | The Moon has less mass then the Earth |
| A Bowling ball and a feather are dropped off the top of North at the same time. Which will hit the ground first? Explain | Bowling Ball The feather has more air resistance and less mass the Bowling ball. |
| How about with no air resistance? | They would hit the ground at the same time |
| The Force of Gravity is affected by____________and____________. | Mass and Distance |
| Force is either a ___________________or a__________________. | Push and Pull |
| I am driving a car down the street. What forces are acting on the car? | Friction, Gravity, forward momentum, and the road pushing back on the car. |
| What can you say about these forces? (are they Balanced?) | The force of acceleration is greater than friction. |
| If a car is moving to the right and you add more force to the right, what will happen? | The car will speed up |
| A force opposing all motion and causes things to stop is _______ | Friction |
| If a ball is rolling at a constant speed, what forces are acting on it? (With Friction) | Gravity, the ground pushing back on the ball, acceleration, and friction. |
| What if there was no friction? | It wouldn't stop moving. |
| If a ball is stopped we can get it moving by using a_________force. | balanced. |
| Newtons 1st Law | An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. |
| Newtons 2nd Law | The acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. |
| Newtons 3rd Law | For every action there is an equal and opposite reaction. |
| Which of Newtons laws is illustrated by the following: | It will either say 1,2, or 3 |
| It takes 10 N to move a 2 Kg object at an acceleration of 5 meters/sec/sec | 2 |
| My car is out of gas, why is it so hard to get it moving? | 1 |
| If I increase the mass of a car the acceleration will go down | 2 |
| As a bird pushes down with its wings the air pushes its wings back up | 3 |
| When my bike hits a rock and stops, why do i fly forward? | 2 |
| A rocket blows gas out it's rear, and the rocket moves forward. | 1 |
| NO MORE LAWS | :) |
| What is the formula for force? | F=m x a |
| If a block is on a table and gravity is pulling it down, how come the brick doesn't go straight through? | Pushing back against the brick. |
| Motion happens as a result of what? | An Unbalanced force. |
| Can a Bicycle move speed on flat ground without any force? | NO |
| What is the formula of Work? | Work= Force x Distance |
| What is the formula for Power? | Power= Work over Time |
| According to the Law of Conservation of Energy, Energy can not be ______________or _______________. | Created or Distroyed |
| Define KE and give an example | Energy associated with moment Falling rock |
| Define PE and give an example | Stored Energy Rock sitting on top of a hill |
| Why does a softball roll to a stop? | Friction |
| What type of Energy does friction turn into? | Heat/ Ediss |
| Identify: KE or PE | the next 6 questions |
| Gas in a race car. | KE |
| A Baseball flying over the field | KE |
| A hammer sitting on a ladder | PE |
| A ballet dancer doing a spin | KE |
| Water stored behind a dam | PE |
| A glass of milk | PE |
| END OF PE/KE QUESTIONS | |
| On a roller coaster, what position has the greatest PE | The start, before lift off |
| Greatest KE | Moving fast down then back up |
| Least PE | At any dip |
| Are the next questions violations of the conservation of energy? | next 4 Qs |
| A roller coaster moves faster at the bottom of a hill | yes |
| a baby ounces higher than you drop it from | yes |
| a bicycle slows down on a flat road when you quit peddling | no |
| Which are examples of Conduction. Convection, and Radiation. | dsaFSSDF |
| Boiling water | Convection |
| Sunlight heating the street | Radiation |
| Touching a hot fork | Conduction |
| A heat lamp | Radiation |
| Leaning up against a hot stove | conduction |
| Hot air rising | Convection |
| Will Energy/heat flow from hot-cold or cold-hot | hot-cold |
| Does ice to cool water or does water heat ice? | water heats ice |
| Doppler Effect: | A change in the sound wavelength and pitch due to an object in motion |
| Identify the following as LONG or TRAN waves | kjhg |
| Sound | LONG |
| Light | TRAN |
| Matter Vibrates | LONG |
| needs Particles to transfer | LONG |
| looks like a straight line | LONG |
| looks like a wavy line | TRAN |
| what does a sound wave look like? | dense dots then spread out dots then dense dots. |
| The Medium moves in what direction relative to sound waves(LONG) | Parallel |
| What 2 factors affect the speed of sound? _________________________and______________________ | Heat and Density |
| Would sound waves travel faster in cold objects or warm objects? ___________________ | Cold solid |
| Sonar | Instrument submarines are to detect reflection sound wave (blip, blip, blip) |
| The approximate speed of light through outer space is: | 300,000 m/sec |
| The speed of light changes depending upon | The medium it travels through |
| Fill in the blanks to list the order in which light will travel the fastest in these mediums (fastest)____________,____________,____________,______________(slowest) | Vacuum, air, water, stone |
| When light travels from air to water it will ___________ and bend. | Slowdown |
| What is at the far left of the Electromagnetic Spectrum? | Gamma rays |
| Far Right? | Am Radio waves |
| What is ROYGBIV | Red, Orange, Yellow, Green, Blue, Indigo, Violet |
| What is the shape of the wave associated with the Electromagnetic wave. | Curves close to each other then the wavelength gets larger and larger. |
| What happens as you go from left to right on the electromagnetic spectrum (Increase and decrease) | keep going |
| Wavelength | increase |
| Energy | decrease |
| Frequency | decrease |
| Which electromagnetic waves have the lowest energy___________ | AM Radio |
| Which electromagnetic wave is perceived as heat ___________ | Infared |
| Which color has the highest frequency ________ | Purple/Violet |
| Which color has the longest wavelength _____________ | Red |
| Which color has the highest energy ____________ | Purple/Violet |
| What 2 changes would you make to increase the amount of energy of a wave | Increasing Frequency and Decreasing/shortened wavelength |
| Proton | Positively charged |
| Electron | Negatively charged |
| Neutrons | neutral |
| If the atom was neutral it would ahve the same number of __________and__________ | Protons and Electrons |
| Like charges | Repel |
| Opposite charges | Attract |
| The movement of what atomic particle produces electrical current? | Electrons |
| Things that conduct electricity are called _________ | Conductors |
| Things that do not conduct electricity is called ____________ | Insulators |
| If an object gains electrons, does it become + or -? | Negative |
| If an object loses electrons what does it become? | Positive |
| If Resistance increases the Current ______ | decreases |
| If Voltage decreases the Current ________ | Decreases |
| Resistance decreases, Voltage increases, Current _________ | Increases |
| If you have 2 light bulbs the resistance ___________ and the current ____________ | Increases, Decreases |
| Batteries | Create Voltage to "Push" electrons |
Created by:
Julia_Disney
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