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Test your basic knowledge |
CSET Physical Science 3
Start Test
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Subjects
:
cset
,
science
Instructions:
Answer 50 questions in 15 minutes.
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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. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight
Newton's first law of motion
Mass
Celsius (
Carbon dioxide and methane
2. 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
Dependent variable (responding variable)
Convection
Thermal energy
Mohs' scale of hardness
3. 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
Fahrenheit (
117
Compounds
pH
4. 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
Hardness
Iron
Solution
Frequency
5. An electric current also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism - Recent work has united these phenomena - as well as light - into electromagnetic radiation
Distillation
Electric current
Electromagnetic radiation
Newton's first law of motion
6. Some gases can transition directly to a solid Example: the formation of frost
Weight
Mixture
Deposition
Liquids
7. 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
Convection
Lever
Current
Density
8. 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
Hardness
Solids
Fahrenheit (
Newton's second law of motion
9. The shortest wavelength; red is the longest
Fluorescent lamp/fluorescent tube
Violet
Compounds
Heat conduction/Thermal conduction
10. Obtained by two different means - fission and fusion
Solution
Nuclear energy
Third - class lever
Gravitation
11. A water - soluble mixture of different dyes extracted from lichens - It is often absorbed onto filter paper
Litmus
Sublimination
Ratio of the length of its slope to its width
Test experiment - Step 1 - Select the materials
12. 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
Physical properties
Efficiently
Solids
Carbon
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
Pulley/block
Electric circuit
number of protons
Draw conclusion
14. 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
Boyle's Law
Distillation
Fluorescent lamp/fluorescent tube
Solution
15. 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
Current
Energy
Mohs' scale of hardness
16. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Forms of energy
Law of reflection
pH indicator
Nonrenewable energy
17. Arranges all of the known elements from left to right and top to bottom in order of increasing atomic number - and they generally coincide with their increasing atomic mass
The periodic table of the elements
Acceleration
Carbon
Optics
18. The number of waves produced in a given time
Carbon dioxide and methane
Chemical elements
Frequency
Litmus test
19. Transition of heat through a medium - From a region of higher temperature to a region of lower temperature - Heat energy is transferred from one material to another by direct contact - Metals are good conductors of heat
Heat conduction/Thermal conduction
Wedge
Three states of matter
Acid rain
20. 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
Static electricity
Distillation
Acid rain
The periodic table of the elements
21. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
Scratch hardness
Thermal radiation
Wavelength
Water
22. 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
Chemical reactions
Chemical changes
Boyle's Law
Gravity
23. A compressed gas pushes out __________ in all directions
Refraction
equally
Newton's second law of motion
Measurement
24. Major greenhouse gases
Weight
ratio of the length of the sloped surface to the height
Carbon dioxide and methane
Electricity
25. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Physical changes
Three states of matter
Third - class lever
Gases
26. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam
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183
27. Symbol: He Protons: 2 Neutrons: 2 Mass: 4
Convection
Chemical reactions
Helium
pH indicator
28. A conclusion is a summary and an explanation of the results of an experiment - Does the data support the hypothesis? If not - a new hypothesis can be formed
Newton's first law of motion
Weight
Draw conclusion
Indentation hardness
29. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Newton's first law of motion
Uranium
First - class lever
Draw conclusion
30. 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
Incandescent light bulb
Variables that are controlled
Test experiment - Step 1 - Select the materials
31. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
Motion
pressure and temperature
Dependent variable (responding variable)
Temperature conversions
32. For a homogeneous object - density is determined by dividing the mass by the volume (D = M/V) The mass is normally measured with an appropriate scale or balance - The volume may be measured directly (from the geometry of the object) or by the displac
Efficiently
Density
Three principal operational definitions of hardness
ratio of the length of the sloped surface to the height
33. Heat can be converted to motion - and motion can produce heat
Thermal energy
Third - class lever
Physical sciences
Test experiment - Step 3
34. Collect Data (results) - Analyze the data to look for patterns or trends - Record measurements and observations during the experiment - Present data in a graph - table - or another form
Test experiment - Step 3
Solids
Litmus test
Temperature conversions
35. The top of a wave's 'hill'
Crest
The formation of rust
Interval
Helium
36. Made by combining two or more different materials without a chemical reaction occurring (the objects do not bond together) - They are the product of a mechanical blending or mixing of chemical substances - Either homogeneous or heterogeneous
Angle of incidence
Ratio of the length of its slope to its width
Mixture
Amplitude
37. 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
Static electricity
positive
Electric current
Steps in conducting a scientific investigation
38. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)
Helium
Physical changes
Renewable energy
Table salt
39. 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
Refractive index
Solids
presence
Electricity
40. Move around the nucleus in electron clouds - have a negative charge - and they are attracted to the positively charged protons in the nucleus - This attraction keeps the electrons in orbit around the nucleus
Frequency
Electrons
intermediate
Mass
41. 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)
proportional to its mass
First - class lever
Test experiment - Step 2 - Set up the procedure
equally
42. 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
chemical symbol
Higher boiling point
Solids
Electric current
43. 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
Physical properties
Temperature conversions
Screw
Velocity
44. The earth's __________ orients the iron needles of navigational compasses
Ballast
magnetic field
Energy
Test experiment - Step 2 - Set up the procedure
45. List the specific materials to be used in the experiment - This allows for replication of the experiment
Test experiment - Step 1 - Select the materials
Pulley/block
Frequency
Inclined plane
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
Newton's first law of motion
Atomic number
proportional to its mass
Solution
47. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
south pole
Dependent variable (responding variable)
Newton's second law of motion
Electricity
48. 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
Forms of energy
Mass
Variables that are controlled
Rebound hardness
49. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron
Develop a hypothesis
Wavelength
Metals in the periodic table
The formation of rust
50. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
Nuclear fission
117
Boyle's Law
Inclined plane
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