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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 difference between two temperatures or an uncertainty
Dependent variable (responding variable)
The formation of rust
Interval
Temperature conversions
2. Symbol: C Protons: 6 Neutrons: 6 Mass: 12
Celsius (
Carbon
Independent variable (manipulated variable)
Nuclear energy
3. 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
chemical symbol
Hydrogen
Refractive index
Physical changes
4. 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
Ballast
Scratch hardness
Nonrenewable energy
Temperature conversions
5. 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
Indentation hardness
Chemical changes
Simple machine
Non - metals in the periodic table
6. 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
Heat conduction/Thermal conduction
Simple machine
Mohs' scale of hardness
presence
7. For smooth surfaces - the angle at which light is incident on the surface equals the angle at which it is reflected
Efficiently
pH indicator
Law of reflection
Table salt
8. If the pressure increases - the volume decreases; the reverse is true as well
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9. 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
Nuclear energy
contrasted
10. 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
Electromagnetic radiation
Hydrogen
Matter
Angle of refraction
11. 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
Independent variable (manipulated variable)
pH
Efficiently
Physical changes
12. Symbol: He Protons: 2 Neutrons: 2 Mass: 4
Crest
Convection
Gases
Helium
13. For every action (applied force) - there is an equal and opposite reaction
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14. A degree on the Fahrenheit scale is 1/180th of the interval between the __________ and boiling point
freezing point
presence
Frequency
Metals in the periodic table
15. 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
Refraction
Rebound hardness
Newton's third law of motion
Pitch
16. Formed by the chemical combination of two or more elements in a fixed ratio Example: water
Compounds
117
Hardness
Physical properties
17. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Transfer of heat
Inclined plane
Acid rain
Forms of energy
18. 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
Deposition
Frequency
Refraction
Current
19. 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
Independent variable (manipulated variable)
Physical properties
Materials with high conductivity
Wheel and axle
20. 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
Chemical reactions
Pulley/block
Physical changes
Wavelength
21. 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
Crest
Inclined plane
Ratio of the length of its slope to its width
Lever
22. 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
Hardness
Fluorescent lamp/fluorescent tube
Compounds
Charles's Law
23. 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
Celsius (
Ratio of the length of its slope to its width
Weight
south pole
24. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms
Rainbow
pressure and temperature
Energy
pH
25. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)
average atomic mass
Materials with high conductivity
The periodic table of the elements
Nuclear energy
26. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight
Metals in the periodic table
Second - class lever
Electricity
Mass
27. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
Electricity
Motion
Liquids
Nonrenewable energy
28. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
Law of conservation of energy
Gravity
south pole
proportional to its mass
29. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron
Measurement
The formation of rust
Velocity
Mohs' scale of hardness
30. 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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31. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object
Electric current
Hardness
Nuclear fusion
Scratch hardness
32. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Reflection
Wavelength
equally
Third - class lever
33. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Non - metals in the periodic table
Velocity
ratio of the length of the sloped surface to the height
Celsius (
34. 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 -
Efficiently
pH
magnetic field
Solids
35. 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
Hardness
Water
Non - metals in the periodic table
Light
36. 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
presence
freezing point
Distillation
37. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Kinetic and potential energy
Indentation hardness
Violet
Dependent variable (responding variable)
38. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)
Water
Fluorescent lamp/fluorescent tube
Renewable energy
Chemical elements
39. 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
Density
First - class lever
Thermal energy
intermediate
40. 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
Metals in the periodic table
Temperature conversions
Kinetic and potential energy
Electrons
41. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
Deposition
Gases
Compounds
Water
42. The burning of coal also contributes to the formation of...
Litmus
Acid rain
Refraction
Wavelength
43. Also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism
Electric current
magnetic field
Newton's second law of motion
Angle of incidence
44. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
Wavelength
Rainbow
Nuclear fission
Boyle's Law
45. 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
Magnetism
positive
Electric circuit
Scratch hardness
46. Energy can be neither created nor destroy
Law of conservation of energy
Electrons
Measurement
Angle of incidence
47. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)
Pulley/block
presence
Solids
Weight
48. 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)
Chemical reactions
First - class lever
Lever
Electric circuit
49. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring
Carbon
Liquids
number of protons
Velocity
50. A water - soluble mixture of different dyes extracted from lichens - It is often absorbed onto filter paper
Interval
The six classical simple machines
Litmus
Physical changes