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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. Formed by the chemical combination of two or more elements in a fixed ratio Example: water
Iron
Independent variable (manipulated variable)
Matter
Compounds
2. Major greenhouse gases
Charles's Law
number of protons
Nuclear energy
Carbon dioxide and methane
3. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Develop a hypothesis
Reflection
Gases
Uranium
4. 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 formation of rust
Ballast
Thermal energy
Mass
5. Also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism
Electrons
Electric current
Screw
Violet
6. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms
Atomic number
Refraction
Energy
Fahrenheit (
7. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle
chemical symbol
The six classical simple machines
Physical changes
groups or families
8. Elements with similar properties fall into the same vertical columns on the preriodic table to form _____ - Properties of elements change greatly across any one row (period)
Draw conclusion
positive
Charles's Law
groups or families
9. Some of the light is reflected - the angle of reflection being equal to the...
Solution
Higher boiling point
Angle of incidence
Litmus
10. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
Magnetism
Wedge
Nuclear fission
Weight
11. Displayed by permanent magnets and around electric currents
Magnetism
Mass
Crest
Kinetic and potential energy
12. Account for 17 elements in the periodic table - Lack the properties of metals but are very common - Include oxygen - nitrogen - and carbon - 7 metalloid elements - and 7 gases - Poor conductors of electricity
Non - metals in the periodic table
contrasted
Temperature conversions
presence
13. 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
chemical symbol
Carbon dioxide and methane
Celsius (
14. 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
Distillation
Wedge
Compounds
The formation of rust
15. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)
Mixture
proportional to its mass
Convection
Renewable energy
16. 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
The formation of rust
Fluorescent lamp/fluorescent tube
Mohs' scale of hardness
Water
17. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
Law of reflection
Newton's second law of motion
south pole
nucleus
18. Unlike incandescent lamps - fluorescent lamps always require a ______ to regulate the flow of power through the lamp
Hydrogen
Test experiment - Step 3
Ballast
Current
19. 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
Amplitude
Inclined plane
Nuclear fission
Nuclear fusion
20. The shortest wavelength; red is the longest
Atomic number
ratio of the length of the sloped surface to the height
Violet
Distillation
21. The particular state of water is determined by ___________ - the behavior of water at one atmosphere (sea level) - freezing at 0
pressure and temperature
Dependent variable (responding variable)
Energy
Violet
22. Metals account for the vast majority of the elements in the periodic table - Show a wide range of chemical and physical properties - Most metals are good conductors of heat and electricity - and some - like iron and cobalt - are magnetic - Many metal
Thermal energy
Inclined plane
Metals in the periodic table
Velocity
23. Results when electrical charges buildup or increase on the surface of a material - here - there is no current flowing as would be found in electrical outlets - When certain materials are rubbed together - electrons can move from one object to the oth
positive
Thermal radiation
Static electricity
groups or families
24. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions
Litmus test
Materials with high conductivity
Table salt
Refraction
25. After a rainstorm - the air is full of tiny drops of water - Each drop acts as a prism - splitting the light into the colors of the spectrum
contrasted
number of protons
Rainbow
Electrons
26. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
Matter
Optics
Gases
Velocity
27. 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
presence
Heat conduction/Thermal conduction
Gravitation
Develop a hypothesis
28. Heat tends to move from a high - temperature region to a low- temperature region - This heat transfer may occur by the mechanisms of conduction - radiation - and convection
Electrons
Interval
Transfer of heat
ratio of the length of the sloped surface to the height
29. 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
Motion
Deposition
Indentation hardness
Atomic number
30. In optics - refraction occurs when light waves travel from a medium with a given refractive index to a medium with another index Example: A ray of light will refract as it enters and leaves glass - assuming there is a change in the refractive index.
Pulley/block
Optics
Temperature conversions
Weight
31. However - a fluorescent lamp converts electrical power into useful light more __________ than an incandescent lamp; lower energy costs offset the higher initial cost of the lamp
Reflection
Materials with poor conductivity
Efficiently
Newton's first law of motion
32. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
Atomic number
Ballast
proportional to its mass
Uranium
33. 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
Rebound hardness
Rainbow
Materials with poor conductivity
Second - class lever
34. Relies on the the first law - The acceleration of an object is proportional to the force applied (the more force - the more acceleration)
35. Energy taken from finite resources that will eventually dwindle - becoming too expensive or too environmentally damaging to retrieve - Fossil fuels include coal - petroleum - and natural gas - Fossil fuels are limited and nonrenewable and contribute
Forms of energy
Reflection
Pulley/block
Nonrenewable energy
36. The earth's __________ orients the iron needles of navigational compasses
Transfer of heat
Mass
magnetic field
Oxygen
37. Atoms are made up of several tiny parts - At the center of an atom is a core called the __________ - which is made up of particles called protons and neutrons
Light
nucleus
Measurement
chemical symbol
38. The liquid state is __________ between the solid and gaseous states with regard to molecular motion and attractive forces between molecules Examples: water - oil - milk - honey
intermediate
Solution
Nuclear energy
ratio of the length of the sloped surface to the height
39. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Indentation hardness
groups or families
chemical symbol
Transfer of heat
40. Show the number of molecules or formula units of the reactants and products - Example: nitrous oxide is a colorless - odorless gas that causes mild hysteria when inhaled - hence the name laughing gas; it is prepared by heating ammonium nitrate crysta
Chemical reactions
Velocity
Lever
Scratch hardness
41. A change of one substance into a different substance - Occurs whenever compounds are formed or decomposed - During this reaction - there is a rearrangement of atoms that makes or breaks chemical bonds - This change is usually not reversible - unlike
Nuclear fusion
Chemical changes
Water
Fluorescent lamp/fluorescent tube
42. Height of the bounce of an object dropped o the material - related to elasticity
Amplitude
Pitch
Rebound hardness
Heat conduction/Thermal conduction
43. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
Table salt
proportional to its mass
Motion
Water
44. The pitch of a sound depends on how fast the particles of a medium vibrate
Water
Physical sciences
Acceleration
Pitch
45. A rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object - Examples: wheelbarrow (the wheel works as the fulcrum) - scissors (the fulcrum is where the blades cross)
ratio of the length of the sloped surface to the height
average atomic mass
Lever
Convection
46. Form a question (state the problem) - A scientific question is one that can be answered on the basis of evidence and that can be measured - The question often asks - 'What effect will something have
Interval
Acceleration
Steps in conducting a scientific investigation
Charles's Law
47. Energy can be neither created nor destroy
Law of conservation of energy
intermediate
Mechanical advantage
Materials with high conductivity
48. The burning of coal also contributes to the formation of...
Acid rain
pH
Fluorescent lamp/fluorescent tube
Density
49. A mechanical device that changes the direction or magnitude of a force - The simplest mechanisms that use mechanical advantage to multiply force - Uses a single applied force to do work against a single load force
The formation of rust
Litmus
Simple machine
Measurement
50. Makes it possible for some elements and compounds to transition from a solid to gas phase without becoming a liquid Example: a block of dry ice (CO2) - which will turn into a gas at room temperature
Sublimination
117
Renewable energy
Test experiment - Step 2 - Set up the procedure