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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. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
Motion
Frequency
Higher boiling point
Chemical reactions
2. Unlike incandescent lamps - fluorescent lamps always require a ______ to regulate the flow of power through the lamp
equally
Scratch hardness
Ballast
Forms of energy
3. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object
Test experiment - Step 3
Physical changes
Physical sciences
Scratch hardness
4. 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
Renewable energy
Refractive index
Chemical elements
5. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
Gravitation
Gases
Kinetic and potential energy
Mixture
6. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
Newton's first law of motion
Hydrogen
Physical changes
Scratch hardness
7. A wave's height - the distance between its resting position and its crest
Liquids
Amplitude
Newton's first law of motion
Hydrogen
8. 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
Pulley/block
Frequency
Mixture
Solution
9. 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
Hydrogen
Acceleration
Current
Wavelength
10. 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
Efficiently
ratio of the length of the sloped surface to the height
Sublimination
Lever
11. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Chemical reactions
Wavelength
Materials with poor conductivity
Indentation hardness
12. A source of electric light that works by incandescence - An electric current passes through a thin filament - heating it until it produces light - The enclosing glass bulb prevents the oxygen in the air from reaching the hot filament - which otherwis
pH
Measurement
Compounds
Incandescent light bulb
13. Temperature scale -0
Variables that are controlled
Carbon dioxide and methane
Celsius (
Fluorescent lamp/fluorescent tube
14. 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
nucleus
Independent variable (manipulated variable)
Efficiently
Materials with poor conductivity
15. 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
Angle of incidence
Transfer of heat
groups or families
Test experiment - Step 1 - Select the materials
16. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Inclined plane
Physical properties
Uranium
Weight
17. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring
Materials with high conductivity
Pitch
Nuclear energy
Liquids
18. 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
Non - metals in the periodic table
Angle of incidence
chemical symbol
Chemical elements
19. 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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20. 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)
Renewable energy
Fluorescent lamp/fluorescent tube
groups or families
Three principal operational definitions of hardness
21. 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
Celsius (
Transfer of heat
Higher boiling point
Materials with poor conductivity
22. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes
117
Gravitation
Electric current
Reflection
23. 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 -
pH
Frequency
Hardness
Physical sciences
24. A flat surface whose endpoints are at different heights - resulting in a slope - By moving an object up an ___________ rather than completely vertically - the amount of force required is reduced - at the expense of increasing the distance the object
Iron
average atomic mass
Inclined plane
Matter
25. Solids - liquids - and gases
Heat conduction/Thermal conduction
Materials with high conductivity
Three states of matter
Density
26. Some gases can transition directly to a solid Example: the formation of frost
Violet
Static electricity
Deposition
ratio of the length of the sloped surface to the height
27. A hypothesis is an attempt to answer the question or predict the outcome - - A hypothesis is a possible explanation for a set of observations
intermediate
Develop a hypothesis
pH indicator
Violet
28. The shortest wavelength; red is the longest
Screw
Violet
pH indicator
Temperature conversions
29. 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
Refraction
Efficiently
Gravity
30. 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
Current
Litmus test
Frequency
presence
31. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
proportional to its mass
Acceleration
Third - class lever
Simple machine
32. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions
positive
Thermal energy
Wedge
Litmus test
33. Hard matter is ______ with soft matter
Nonrenewable energy
Velocity
contrasted
Mass
34. 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)
Litmus
Efficiently
Lever
Three states of matter
35. For smooth surfaces - the angle at which light is incident on the surface equals the angle at which it is reflected
Energy
Law of reflection
Pulley/block
Reflection
36. Height of the bounce of an object dropped o the material - related to elasticity
Rebound hardness
Distillation
Test experiment - Step 2 - Set up the procedure
Deposition
37. The portion of the light that crosses the boundary is - however - deflected in another direction - and the ______ does not equal the angle of incidence
Angle of refraction
The six classical simple machines
Static electricity
ratio of the length of the sloped surface to the height
38. If the pressure increases - the volume decreases; the reverse is true as well
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39. 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
117
Electrons
Scratch hardness
Thermal energy
40. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)
Acceleration
average atomic mass
Fahrenheit (
Chemical elements
41. Protons have a __________ electrical charge - and neutrons have no charge
positive
Physical changes
Electric current
proportional to its mass
42. 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
Transfer of heat
pressure and temperature
Materials with high conductivity
Gravitation
43. The resulting piece of paper or solution with water becomes a ________ (one of the oldest) - used to test materials for acidity
pH indicator
Litmus
Hardness
Rainbow
44. 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)
Celsius (
Gravitation
Test experiment - Step 2 - Set up the procedure
Three states of matter
45. Symbol: Fe Protons: 26 Neutrons: 30 Mass 56
intermediate
Acid rain
Static electricity
Iron
46. Scratch hardness - indentation hardness - and rebound hardness
Violet
Law of conservation of energy
Nuclear fusion
Three principal operational definitions of hardness
47. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Physical properties
Third - class lever
Helium
Three principal operational definitions of hardness
48. 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
Gravitation
Carbon
Chemical reactions
49. A difference between two temperatures or an uncertainty
Hydrogen
Celsius (
Interval
Renewable energy
50. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam
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