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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. The sum of the protons and neutrons gives an ______________ for the element
average atomic mass
Iron
Hardness
intermediate
2. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions
Litmus test
Forms of energy
Develop a hypothesis
Gravitation
3. 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
Ratio of the length of its slope to its width
117
Materials with poor conductivity
Iron
4. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms
Refraction
Sublimination
Energy
Test experiment - Step 2 - Set up the procedure
5. Salt has a ___________ than water and therefore doesn't evaporate with the water
Higher boiling point
Pulley/block
Angle of incidence
Acid rain
6. Height of the bounce of an object dropped o the material - related to elasticity
Refraction
Rebound hardness
ratio of the length of the sloped surface to the height
Electric current
7. Hard matter is ______ with soft matter
The periodic table of the elements
Liquids
intermediate
contrasted
8. 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
Physical changes
Litmus test
Materials with high conductivity
Test experiment - Step 3
9. The particular state of water is determined by ___________ - the behavior of water at one atmosphere (sea level) - freezing at 0
pressure and temperature
First - class lever
Distillation
Iron
10. Major greenhouse gases
Electrons
Iron
Carbon dioxide and methane
Dependent variable (responding variable)
11. 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
Thermal energy
Weight
Boyle's Law
ratio of the length of the sloped surface to the height
12. Solids - liquids - and gases
Thermal energy
Three states of matter
Pitch
Inclined plane
13. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
Rainbow
Three principal operational definitions of hardness
Pitch
Physical properties
14. 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
equally
Mechanical advantage
First - class lever
Steps in conducting a scientific investigation
15. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight
Physical properties
Mass
freezing point
Frequency
16. 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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17. A wave's height - the distance between its resting position and its crest
Litmus test
Amplitude
Test experiment - Step 1 - Select the materials
Table salt
18. The number of waves produced in a given time
Draw conclusion
Incandescent light bulb
Frequency
Charles's Law
19. 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
Magnetism
Chemical changes
Mass
First - class lever
20. A measure of the acidity or basicity of a solution - The ____ scale is not an absolute scale; it is relative to a set of standard solutions whose pH is established by international agreement - these measurements are important for medicine - biology -
117
Gravity
pH
Dependent variable (responding variable)
21. The earth's __________ orients the iron needles of navigational compasses
Angle of incidence
Wheel and axle
magnetic field
Pulley/block
22. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)
Variables that are controlled
Acceleration
Frequency
Velocity
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
Mixture
presence
Materials with high conductivity
Distillation
24. Symbol: He Protons: 2 Neutrons: 2 Mass: 4
Indentation hardness
proportional to its mass
Helium
Thermal energy
25. 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
Temperature conversions
Wheel and axle
Renewable energy
nucleus
26. 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
Test experiment - Step 1 - Select the materials
Wavelength
Iron
27. 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
Fluorescent lamp/fluorescent tube
Transfer of heat
Three states of matter
Electric circuit
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
Dependent variable (responding variable)
Refraction
Mixture
Forms of energy
29. The top of a wave's 'hill'
Crest
Law of reflection
Newton's second law of motion
presence
30. Obtained by two different means - fission and fusion
ratio of the length of the sloped surface to the height
Nuclear energy
Static electricity
Indentation hardness
31. If the pressure increases - the volume decreases; the reverse is true as well
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32. 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
Electricity
Heat conduction/Thermal conduction
Physical sciences
Develop a hypothesis
33. Anything that has mass and occupies space - Everything you see and touch is composed of matter
Matter
Three states of matter
proportional to its mass
Independent variable (manipulated variable)
34. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
south pole
Compounds
Density
proportional to its mass
35. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes
Draw conclusion
Reflection
contrasted
Second - class lever
36. 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
Motion
Mohs' scale of hardness
Non - metals in the periodic table
Test experiment - Step 3
37. 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
Frequency
Refractive index
Second - class lever
38. 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
Amplitude
proportional to its mass
Convection
Electrons
39. 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
magnetic field
Nuclear fusion
Independent variable (manipulated variable)
Materials with poor conductivity
40. The resulting piece of paper or solution with water becomes a ________ (one of the oldest) - used to test materials for acidity
Simple machine
Chemical changes
pH indicator
Ballast
41. For every action (applied force) - there is an equal and opposite reaction
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42. 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
Density
Pitch
number of protons
Velocity
43. 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
Gravitation
Draw conclusion
Mass
44. 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
Hydrogen
Uranium
Newton's second law of motion
Rainbow
45. 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.
Electric circuit
Atomic number
Optics
Wedge
46. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Ratio of the length of its slope to its width
Rainbow
Velocity
Thermal radiation
47. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Uranium
Table salt
Non - metals in the periodic table
Fahrenheit (
48. 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
Angle of incidence
Oxygen
Acid rain
Fluorescent lamp/fluorescent tube
49. 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
Physical changes
Weight
Atomic number
Gravitation
50. 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
Chemical elements
Rainbow
Electrons
Carbon
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