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Test your basic knowledge |
CSET Physical Science 3
Start Test
Study First
Subjects
:
cset
,
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Transferring of heat by the circulating motion of particles (in liquid or gas) - Occurs when hot air is less dense than cool air and therefore rises - When the heat moves in a circular pattern - convection currents are formed - Heat can be transferre
Refraction
ratio of the length of the sloped surface to the height
Weight
Convection
2. A form of energy that can be used to produce sound - light - heat - and power - it exists where the number of negative electrons does not precisely equal the number of positive protons - Electrons are held in the atom by an electrical force and have
Rebound hardness
Electricity
Liquids
Transfer of heat
3. State the specific plan on how to test the hypothesis - Create a written - step - by - step procedure - Determine the variables (any factor that can change in an experiment)
Test experiment - Step 2 - Set up the procedure
Carbon dioxide and methane
pressure and temperature
Distillation
4. Multiply force but do not change the direction of the input force End: Fulcrum Middle: Output force Other end: Input force Examples: wheelbarrows - baby strollers - bottle openers
Simple machine
Wheel and axle
Second - class lever
Develop a hypothesis
5. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)
Acceleration
Refraction
Violet
chemical symbol
6. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
Iron
Compounds
Nuclear fission
Distillation
7. When foreign substances are dissolved in water it creates a solution - Solutions with a pH of less than 7.0 are said to be acidic - and solutions with a pH greater than 7.0 are said to be basic or alkaline
Rainbow
Solution
Newton's third law of motion
Acid rain
8. Opposite process of nuclear fission - Yields energy when very light nuclei unite to a heavier nucleus - Stars (including the sun) derive their energy from nuclear fusion
First - class lever
Nuclear fusion
Temperature conversions
groups or families
9. If the pressure increases - the volume decreases; the reverse is true as well
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10. Composed of only one atom and cannot be separated into different substances except in some instances by radioactive decay or by nuclear reactions
Dependent variable (responding variable)
Temperature conversions
Reflection
Chemical elements
11. The particular state of water is determined by ___________ - the behavior of water at one atmosphere (sea level) - freezing at 0
chemical symbol
Static electricity
pressure and temperature
Velocity
12. A gas - discharge lamp that uses electricity to excite mercury vapor - The excited mercury atoms produce short - wave ultraviolet light that then causes a phosphor to fluoresce - producing visible light
Fluorescent lamp/fluorescent tube
Inclined plane
Chemical reactions
Independent variable (manipulated variable)
13. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron
The periodic table of the elements
The formation of rust
Violet
Indentation hardness
14. The sum of the protons and neutrons gives an ______________ for the element
Atomic number
number of protons
average atomic mass
chemical symbol
15. Glass has a higher ___________ than air and the different frequencies of light have different wavelengths (dispersion) - causing them to be refracted at different angles - so that you can see them - The different frequencies correspond to different c
Refractive index
positive
equally
Rainbow
16. Designed to separate substances in a liquid through vaporization - Usually carried out in an apparatus called a still - which requires a boiler - a condenser - and a receiver Example: Purify ocean water
magnetic field
117
Distillation
Incandescent light bulb
17. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Indentation hardness
Variables that are controlled
Kinetic and potential energy
Scratch hardness
18. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes
Gravitation
Reflection
Acceleration
Fahrenheit (
19. The pitch of a sound depends on how fast the particles of a medium vibrate
Pitch
Renewable energy
Draw conclusion
number of protons
20. A difference between two temperatures or an uncertainty
Fluorescent lamp/fluorescent tube
Heat conduction/Thermal conduction
Violet
Interval
21. A compound composed of one atom of sodium and one atom of chlorine (NaCl - sodium chloride)
Light
Newton's second law of motion
Table salt
Weight
22. Mechanical advantage of an inclined plane is the ______________ it spans - The inclined plane allows the same work to be done with a smaller force exerted over a greater distance Example: ramp
ratio of the length of the sloped surface to the height
Gravity
Electric current
Interval
23. Other indicators of the ________ of an acid are that when acids react with metals - hydrogen gas is released causing bases to feel soapy when touched
presence
Develop a hypothesis
groups or families
Angle of refraction
24. Seems to travel in perfectly straight lines as rays - The direction of a ray changes at the interface between two transparent materials - like air and water
Materials with high conductivity
Electrons
Third - class lever
Light
25. Involve one substance changing states (not one substance changing into another) - Typically reversible Example: water - Can change from a gas (water vapor) to a liquid (water) to a solid (ice) - but the water molecules do not change
Metals in the periodic table
Screw
The formation of rust
Physical changes
26. Scratch hardness - indentation hardness - and rebound hardness
Simple machine
Electrons
Three principal operational definitions of hardness
Boyle's Law
27. Symbol: O Protons: 8 Neutrons: 8 Mass: 16
Independent variable (manipulated variable)
Oxygen
Three principal operational definitions of hardness
Distillation
28. Displayed by permanent magnets and around electric currents
Solids
Magnetism
Optics
Electrons
29. The terms gravitation and gravity are mostly interchangeable in everyday use - refers specifically to the gravitational force exerted by the earth on objects in its vicinity
Iron
Energy
Physical properties
Gravity
30. The distance between two consecutive points on a wave (crest to crest)
Wavelength
Forms of energy
Table salt
Deposition
31. Some of the light is reflected - the angle of reflection being equal to the...
Current
Materials with high conductivity
Angle of incidence
intermediate
32. Protons have a __________ electrical charge - and neutrons have no charge
Ballast
Simple machine
positive
Convection
33. This is the variable that changes as a result of the manipulated variable. The dependent variable is observed and measured. Examples include determining how long various saltwater solutions take to freeze - and determining the number of cycles a pend
Dependent variable (responding variable)
proportional to its mass
Electromagnetic radiation
Indentation hardness
34. Some gases can transition directly to a solid Example: the formation of frost
Violet
Deposition
Chemical changes
Crest
35. A temperature interval of one degree F is an interval of 5/9 of a degree C - The Fahrenheit and Celsius scales coincide at -40
Temperature conversions
presence
Current
Litmus
36. The path or circuit an electric current flows - Electricity requires a complete path for the electrons to flow - If the path is broken and there are not alternative paths for the electrons to follow - the electrons will not move - make it possible fo
Electric circuit
Newton's second law of motion
Mixture
Current
37. The branches of natural sciences that study the nature and properties of energy and non - living matter
proportional to its mass
Physical sciences
Deposition
Simple machine
38. This is the one factor that will be intentionally changed during the experiment. Examples include changing the amount of salt that is added to water to determine its freezing point; introducing different soil types in germinating seeds; and changing
Solids
Incandescent light bulb
Weight
Independent variable (manipulated variable)
39. A natural phenomenon by which objects with mass attract one another - Compels dispersed matter to coalesce - and thus it accounts for the very existence of the earth - the sun - and most of the macroscopic objects in the universe - Responsible for ke
Gravitation
Motion
Helium
Charles's Law
40. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
groups or families
south pole
Inclined plane
Kinetic and potential energy
41. The ratio of the output to the input force - Also called leverage - Results in less force applied over a greater distance - Helps to make work easier
Metals in the periodic table
Deposition
Mechanical advantage
groups or families
42. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
Second - class lever
proportional to its mass
Violet
Wedge
43. A first - class lever - In its simplest form it consists of a rod attached to a wheel so that their movements are coupled when one of the parts is turned
Steps in conducting a scientific investigation
Acceleration
Indentation hardness
Wheel and axle
44. A compound and portable inclined plane - A triangular - shaped tool used to separate two objects or portions of an object - lift an object - or hold an object in place - It functions by converting a force applied to its blunt end into forces perpendi
Wedge
Acceleration
Physical changes
Iron
45. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam
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46. The number of protons of that element - No two elements have the same atomic number - Elements in the periodic table are arranged in order of increasing atomic number
Atomic number
Incandescent light bulb
chemical symbol
Electric current
47. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Third - class lever
pH indicator
Temperature conversions
nucleus
48. Are inclined planes - Can convert a rotational force (torque) to a linear force - and vice versa - The ratio of threading determines the mechanical advantage of the machine - More threading increases the mechanical advantage
Screw
Electricity
Weight
Violet
49. Known as insulators - In materials that act as insulators - the electrons are held tightly inside their atoms and the electrons cannot move freely - Include plastic - rubber - glass - air - and wood
Table salt
Materials with poor conductivity
Magnetism
The periodic table of the elements
50. These are the factors that are kept exactly the same in an experiment. In an experiment on plant growth - the variables could include amount of sunlight - type of soil - amount of water - and type of plant. Only one factor at a time is changed - whil
Energy
Liquids
Variables that are controlled
Carbon
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