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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 number of waves produced in a given time
freezing point
Frequency
Litmus
Iron
2. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Indentation hardness
average atomic mass
Convection
Nuclear energy
3. 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
Solids
chemical symbol
Convection
Materials with poor conductivity
4. For smooth surfaces - the angle at which light is incident on the surface equals the angle at which it is reflected
Efficiently
Law of reflection
Physical properties
First - class lever
5. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
Gases
Three principal operational definitions of hardness
Mohs' scale of hardness
Acid rain
6. A compound and portable inclined plane - A triangular - shaped tool used to separate two objects or portions of an object - lift an object - or hold an object in place - It functions by converting a force applied to its blunt end into forces perpendi
Wedge
contrasted
Ballast
Nonrenewable energy
7. 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
Efficiently
Lever
Light
8. Seems to travel in perfectly straight lines as rays - The direction of a ray changes at the interface between two transparent materials - like air and water
Light
Physical properties
Angle of refraction
Hydrogen
9. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Mixture
Third - class lever
Chemical elements
Uranium
10. Hard matter is ______ with soft matter
The six classical simple machines
average atomic mass
contrasted
presence
11. 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
Lever
Distillation
Fluorescent lamp/fluorescent tube
Temperature conversions
12. A difference between two temperatures or an uncertainty
Pitch
Materials with high conductivity
number of protons
Interval
13. 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)
Water
Nuclear fission
Distillation
Lever
14. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Test experiment - Step 1 - Select the materials
Forms of energy
Wedge
Distillation
15. 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
Sublimination
freezing point
Wheel and axle
Electric circuit
16. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam
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17. 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
Test experiment - Step 1 - Select the materials
equally
Physical sciences
Electric circuit
18. The portion of the light that crosses the boundary is - however - deflected in another direction - and the ______ does not equal the angle of incidence
Hydrogen
Metals in the periodic table
Gravity
Angle of refraction
19. 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
equally
Renewable energy
Transfer of heat
intermediate
20. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
Inclined plane
Nonrenewable energy
Physical properties
equally
21. Opposite process of nuclear fission - Yields energy when very light nuclei unite to a heavier nucleus - Stars (including the sun) derive their energy from nuclear fusion
intermediate
Energy
Nuclear fusion
Deposition
22. 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
Density
Electric circuit
Frequency
23. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms
Energy
Chemical changes
Refractive index
Mohs' scale of hardness
24. Some gases can transition directly to a solid Example: the formation of frost
Deposition
Litmus test
Wavelength
Third - class lever
25. 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
Compounds
Carbon dioxide and methane
Physical changes
26. 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
Fluorescent lamp/fluorescent tube
Heat conduction/Thermal conduction
Metals in the periodic table
Variables that are controlled
27. 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 changes
Frequency
Amplitude
Gases
28. The sum of the protons and neutrons gives an ______________ for the element
Indentation hardness
chemical symbol
average atomic mass
south pole
29. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Steps in conducting a scientific investigation
Test experiment - Step 1 - Select the materials
Third - class lever
chemical symbol
30. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
Hydrogen
Solution
Steps in conducting a scientific investigation
Newton's first law of motion
31. Symbol: O Protons: 8 Neutrons: 8 Mass: 16
Physical sciences
Angle of refraction
Oxygen
Pulley/block
32. A compound composed of one atom of sodium and one atom of chlorine (NaCl - sodium chloride)
groups or families
Physical properties
Fluorescent lamp/fluorescent tube
Table salt
33. List the specific materials to be used in the experiment - This allows for replication of the experiment
Litmus
Pitch
Test experiment - Step 1 - Select the materials
Energy
34. 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
Current
Independent variable (manipulated variable)
Amplitude
Physical changes
35. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes
Reflection
Violet
First - class lever
south pole
36. Also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism
positive
Celsius (
Electric current
Wheel and axle
37. 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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38. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle
Materials with high conductivity
Gases
The six classical simple machines
Water
39. The shortest wavelength; red is the longest
Sublimination
equally
Heat conduction/Thermal conduction
Violet
40. 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
Hydrogen
Angle of incidence
Solution
41. 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
Thermal energy
Mixture
Chemical changes
Oxygen
42. A hypothesis is an attempt to answer the question or predict the outcome - - A hypothesis is a possible explanation for a set of observations
Wheel and axle
Develop a hypothesis
Physical sciences
117
43. Anything that has mass and occupies space - Everything you see and touch is composed of matter
Magnetism
Pitch
Matter
Forms of energy
44. If the pressure increases - the volume decreases; the reverse is true as well
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45. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
Motion
Interval
Physical changes
Deposition
46. 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
Test experiment - Step 2 - Set up the procedure
Rainbow
Reflection
Violet
47. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Velocity
Table salt
Crest
Ballast
48. 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)
Law of reflection
Mixture
Chemical changes
Test experiment - Step 2 - Set up the procedure
49. 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
Amplitude
south pole
Acceleration
50. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)
Acid rain
Efficiently
Matter
Renewable energy