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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 law of inertia - Without outside forces (such as gravity or friction) - an object at rest will remain at rest - while an object in motion will never stop or deviate from its course
2. 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
Solids
Nuclear fission
Distillation
Lever
3. 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
Measurement
Sublimination
Carbon
Weight
4. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle
Static electricity
Refractive index
The six classical simple machines
Light
5. Some of the light is reflected - the angle of reflection being equal to the...
Angle of incidence
Efficiently
Gases
Electric current
6. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes
Oxygen
Rebound hardness
Reflection
Light
7. 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
Deposition
Measurement
Hardness
Density
8. Relies on the the first law - The acceleration of an object is proportional to the force applied (the more force - the more acceleration)
9. Elements are assigned atomic numbers equal to the __________ in the nucleus of their atoms - Each element has a different number of protons
Variables that are controlled
Celsius (
Current
number of protons
10. 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
Test experiment - Step 3
contrasted
Inclined plane
Distillation
11. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
Gases
pH
Gravitation
south pole
12. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)
Higher boiling point
chemical symbol
Weight
Current
13. Symbol: C Protons: 6 Neutrons: 6 Mass: 12
Celsius (
Wedge
Static electricity
Carbon
14. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions
south pole
Litmus test
The periodic table of the elements
Water
15. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam
16. 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
Litmus
presence
Renewable energy
equally
17. List the specific materials to be used in the experiment - This allows for replication of the experiment
Pulley/block
Test experiment - Step 1 - Select the materials
Mass
Mechanical advantage
18. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Velocity
Weight
presence
average atomic mass
19. The branches of natural sciences that study the nature and properties of energy and non - living matter
Physical sciences
Litmus
Crest
Interval
20. Scratch hardness - indentation hardness - and rebound hardness
Three principal operational definitions of hardness
south pole
Thermal energy
Renewable energy
21. A wave's height - the distance between its resting position and its crest
117
ratio of the length of the sloped surface to the height
Amplitude
Current
22. A difference between two temperatures or an uncertainty
Table salt
Interval
Rebound hardness
Acceleration
23. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Helium
Efficiently
Indentation hardness
nucleus
24. A temperature interval of one degree F is an interval of 5/9 of a degree C - The Fahrenheit and Celsius scales coincide at -40
Gravitation
Electromagnetic radiation
Variables that are controlled
Temperature conversions
25. 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.
Weight
Simple machine
Optics
Celsius (
26. 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
Convection
Angle of incidence
chemical symbol
Chemical changes
27. 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
Steps in conducting a scientific investigation
Motion
Materials with high conductivity
Gravity
28. 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
First - class lever
number of protons
Convection
Fahrenheit (
29. 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
Light
Violet
Convection
30. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
Incandescent light bulb
Helium
Test experiment - Step 3
Physical properties
31. 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
Hydrogen
Variables that are controlled
magnetic field
presence
32. 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
Nuclear energy
Transfer of heat
Gases
Charles's Law
33. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
Acceleration
Iron
south pole
Efficiently
34. 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
Fahrenheit (
ratio of the length of the sloped surface to the height
Density
Energy
35. 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
Three states of matter
Electric current
Magnetism
Efficiently
36. 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
Refractive index
Independent variable (manipulated variable)
117
Deposition
37. Height of the bounce of an object dropped o the material - related to elasticity
Carbon
Rebound hardness
Solids
Energy
38. 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
Mass
nucleus
Electricity
Incandescent light bulb
39. 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
Crest
number of protons
chemical symbol
Physical sciences
40. The particular state of water is determined by ___________ - the behavior of water at one atmosphere (sea level) - freezing at 0
Ratio of the length of its slope to its width
Weight
Hardness
pressure and temperature
41. 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
Inclined plane
Amplitude
Rebound hardness
42. 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
magnetic field
Sublimination
Renewable energy
Materials with poor conductivity
43. Heat can be converted to motion - and motion can produce heat
Mechanical advantage
Rainbow
Celsius (
Thermal energy
44. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)
Nonrenewable energy
Nuclear fission
Carbon
Acceleration
45. 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
Three principal operational definitions of hardness
Fahrenheit (
Test experiment - Step 1 - Select the materials
Test experiment - Step 2 - Set up the procedure
46. Solids - liquids - and gases
Gravitation
Ratio of the length of its slope to its width
Inclined plane
Three states of matter
47. The pitch of a sound depends on how fast the particles of a medium vibrate
Pitch
Atomic number
Gravitation
Electric current
48. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron
Second - class lever
Gases
The formation of rust
Boyle's Law
49. Symbol: He Protons: 2 Neutrons: 2 Mass: 4
Atomic number
Oxygen
Helium
Materials with high conductivity
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
Iron
Liquids
Electrons
Newton's third law of motion