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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. 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
average atomic mass
Solids
Screw
Efficiently
2. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)
Wavelength
Renewable energy
Current
Chemical reactions
3. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object
Scratch hardness
positive
Non - metals in the periodic table
Nuclear energy
4. A compound composed of one atom of sodium and one atom of chlorine (NaCl - sodium chloride)
Physical properties
Fahrenheit (
Table salt
Mixture
5. 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)
groups or families
Physical properties
Thermal energy
Scratch hardness
6. Displayed by permanent magnets and around electric currents
Three principal operational definitions of hardness
Magnetism
Rainbow
chemical symbol
7. 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
Distillation
The formation of rust
Gravitation
Non - metals in the periodic table
8. Anything that has mass and occupies space - Everything you see and touch is composed of matter
Matter
positive
Hydrogen
Higher boiling point
9. A water - soluble mixture of different dyes extracted from lichens - It is often absorbed onto filter paper
Litmus
positive
Nuclear energy
117
10. 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
Nuclear fusion
Simple machine
Motion
Indentation hardness
11. The mechanical advantage of a wedge is given by the ______________________ - Although a short wedge with a wide angle may do a job faster - it requires more force than a long wedge with a narrow angle
Ratio of the length of its slope to its width
Boyle's Law
Steps in conducting a scientific investigation
Oxygen
12. Relies on the the first law - The acceleration of an object is proportional to the force applied (the more force - the more acceleration)
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13. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
Mass
Nuclear fission
Motion
groups or families
14. Scratch hardness - indentation hardness - and rebound hardness
intermediate
Three principal operational definitions of hardness
Solids
Non - metals in the periodic table
15. Characterized by their ability to retain their shape - Relatively incompressible - Melt when heated and vaporize only slightly - All substances become solid if cooled sufficiently Examples: rocks - crystals - wood - feather - ice
117
Solids
Physical changes
Metals in the periodic table
16. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Law of reflection
Forms of energy
Boyle's Law
Pulley/block
17. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Charles's Law
Inclined plane
Velocity
Deposition
18. Height of the bounce of an object dropped o the material - related to elasticity
Simple machine
Rebound hardness
Gravity
magnetic field
19. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)
Acceleration
Chemical changes
Variables that are controlled
Gases
20. Rates minerals and puts them on a scale from 1 to 10 (1 is the softest and 10 is the hardest) determined by the ability of a harder mineral to scratch a softer mineral - Talc is at 1 and diamond is at 10
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21. 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
Thermal radiation
Materials with high conductivity
average atomic mass
Fluorescent lamp/fluorescent tube
22. When the electrons flow in one direction - the flowing electricity is referred to as current - An electric current is simply a flow of electrons through a wire
Current
Chemical changes
Convection
Simple machine
23. The particular state of water is determined by ___________ - the behavior of water at one atmosphere (sea level) - freezing at 0
Nuclear fusion
Frequency
pressure and temperature
Thermal energy
24. 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
Matter
Density
The periodic table of the elements
Steps in conducting a scientific investigation
25. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
Motion
Materials with poor conductivity
Pitch
Law of conservation of energy
26. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
positive
Test experiment - Step 3
Water
Liquids
27. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
Incandescent light bulb
Hydrogen
intermediate
Mixture
28. Explains why objects appear bent as light passes from one transparent object into another - Light travels at different speeds through different objects (faster through air than through water or glass) - Responsible for rainbows and for the splitting
Mixture
Refraction
Table salt
presence
29. The earth's __________ orients the iron needles of navigational compasses
Frequency
Electric circuit
Law of conservation of energy
magnetic field
30. 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
Compounds
Violet
Density
Independent variable (manipulated variable)
31. Major greenhouse gases
Carbon dioxide and methane
Electrons
freezing point
Angle of refraction
32. 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
Chemical reactions
contrasted
Second - class lever
Three states of matter
33. The burning of coal also contributes to the formation of...
Ballast
Refraction
Mechanical advantage
Acid rain
34. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)
Materials with high conductivity
Charles's Law
117
Wavelength
35. As of 2006 - the table contains _____ chemical elements whose discoveries have been confirmed - 94 are naturally found on the earth - and the rest are synthetic elements that have been produced artificially in particle accelerators
pH indicator
Electrons
117
Ratio of the length of its slope to its width
36. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring
Reflection
Static electricity
Liquids
pH
37. 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
Newton's second law of motion
Rainbow
Atomic number
Litmus
38. 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
Chemical reactions
pH indicator
Mechanical advantage
39. A grooved wheel with a rope or other item wrapped around it - used to change the direction of an applied force - change the amount of force - transmit rotational motion - or realize a mechanical advantage in either a linear or a rotational system of
Compounds
Nuclear fission
Pulley/block
Temperature conversions
40. Temperature scale named after the German physicist Daniel Gabriel Fahrenheit (1686-1736) - who proposed it in 1724 - On this scale - the freezing point of water is 32
Matter
Renewable energy
Refraction
Fahrenheit (
41. 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
Heat conduction/Thermal conduction
Frequency
Nuclear energy
Screw
42. 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
Nuclear fusion
Physical properties
Nonrenewable energy
Deposition
43. The branches of natural sciences that study the nature and properties of energy and non - living matter
contrasted
Physical sciences
Pulley/block
Litmus
44. In each element's square - the ________ is in the middle - the atomic weight is usually directly below the symbol - the atomic number is usually shown at the top of the square
Wheel and axle
chemical symbol
Nuclear energy
Wavelength
45. The portion of the light that crosses the boundary is - however - deflected in another direction - and the ______ does not equal the angle of incidence
Transfer of heat
Angle of refraction
Variables that are controlled
Mixture
46. Formed by the chemical combination of two or more elements in a fixed ratio Example: water
Test experiment - Step 2 - Set up the procedure
Law of conservation of energy
positive
Compounds
47. A degree on the Fahrenheit scale is 1/180th of the interval between the __________ and boiling point
freezing point
Electricity
proportional to its mass
Acceleration
48. The number of waves produced in a given time
Crest
Frequency
freezing point
Indentation hardness
49. Protons have a __________ electrical charge - and neutrons have no charge
positive
Steps in conducting a scientific investigation
intermediate
Transfer of heat
50. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle
The six classical simple machines
Thermal radiation
Electric circuit
Pitch