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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. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Newton's second law of motion
Helium
Third - class lever
magnetic field
2. 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
Physical properties
Electric circuit
Test experiment - Step 1 - Select the materials
Physical sciences
3. 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
Physical properties
First - class lever
Compounds
Density
4. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions
Test experiment - Step 1 - Select the materials
Refractive index
groups or families
Litmus test
5. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
Hydrogen
Violet
Mass
intermediate
6. Multiply force but do not change the direction of the input force End: Fulcrum Middle: Output force Other end: Input force Examples: wheelbarrows - baby strollers - bottle openers
Materials with high conductivity
Frequency
Wedge
Second - class lever
7. 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
Fluorescent lamp/fluorescent tube
Wavelength
Current
Nuclear fission
8. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
Chemical reactions
Sublimination
Distillation
Nuclear fission
9. 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
number of protons
Ratio of the length of its slope to its width
pH
First - class lever
10. Scratch hardness - indentation hardness - and rebound hardness
Velocity
Violet
Three principal operational definitions of hardness
Indentation hardness
11. Temperature scale -0
Crest
Celsius (
Pitch
Mixture
12. 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
Amplitude
Temperature conversions
Scratch hardness
Wedge
13. 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
117
Atomic number
Nuclear fusion
Refraction
14. The number of waves produced in a given time
Acid rain
magnetic field
Variables that are controlled
Frequency
15. A water - soluble mixture of different dyes extracted from lichens - It is often absorbed onto filter paper
Test experiment - Step 1 - Select the materials
Iron
Chemical elements
Litmus
16. 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
Higher boiling point
Current
Scratch hardness
Efficiently
17. Glass has a higher ___________ than air and the different frequencies of light have different wavelengths (dispersion) - causing them to be refracted at different angles - so that you can see them - The different frequencies correspond to different c
Refractive index
pH indicator
Draw conclusion
First - class lever
18. 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
Dependent variable (responding variable)
Solution
Incandescent light bulb
Litmus test
19. 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
Interval
Refraction
Non - metals in the periodic table
Variables that are controlled
20. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight
Three states of matter
Mass
Solution
Carbon dioxide and methane
21. The burning of coal also contributes to the formation of...
Acid rain
Kinetic and potential energy
Magnetism
ratio of the length of the sloped surface to the height
22. Some gases can transition directly to a solid Example: the formation of frost
Deposition
Oxygen
Non - metals in the periodic table
presence
23. 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
Pitch
Light
Inclined plane
Test experiment - Step 1 - Select the materials
24. 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
Law of reflection
First - class lever
Incandescent light bulb
25. The sum of the protons and neutrons gives an ______________ for the element
Ratio of the length of its slope to its width
Simple machine
Scratch hardness
average atomic mass
26. Energy can be neither created nor destroy
Draw conclusion
Pulley/block
The periodic table of the elements
Law of conservation of energy
27. Height of the bounce of an object dropped o the material - related to elasticity
Fluorescent lamp/fluorescent tube
Electricity
Rebound hardness
Boyle's Law
28. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)
Develop a hypothesis
First - class lever
Weight
Heat conduction/Thermal conduction
29. Protons have a __________ electrical charge - and neutrons have no charge
Interval
Litmus
Nuclear energy
positive
30. 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
Rainbow
Physical properties
Newton's third law of motion
Inclined plane
31. 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
Convection
Materials with poor conductivity
Refractive index
Mechanical advantage
32. 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
First - class lever
Helium
Physical changes
Law of conservation of energy
33. The resulting piece of paper or solution with water becomes a ________ (one of the oldest) - used to test materials for acidity
pH indicator
Second - class lever
Efficiently
Water
34. 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
Nuclear energy
presence
Distillation
Physical properties
35. Salt has a ___________ than water and therefore doesn't evaporate with the water
Nuclear energy
Solution
Higher boiling point
Second - class lever
36. Symbol: O Protons: 8 Neutrons: 8 Mass: 16
Oxygen
Electrons
nucleus
Lever
37. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
Physical changes
Transfer of heat
Test experiment - Step 2 - Set up the procedure
Physical properties
38. Displayed by permanent magnets and around electric currents
Distillation
Acceleration
Magnetism
Temperature conversions
39. Also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism
Electric current
Nuclear fission
Develop a hypothesis
equally
40. 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
Sublimination
intermediate
Nonrenewable energy
Third - class lever
41. 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
Simple machine
Crest
pressure and temperature
Steps in conducting a scientific investigation
42. Symbol: C Protons: 6 Neutrons: 6 Mass: 12
Third - class lever
Carbon
Rainbow
Nonrenewable energy
43. 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
Table salt
Fahrenheit (
Solids
Mixture
44. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
Law of reflection
Electromagnetic radiation
south pole
Litmus
45. 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
Renewable energy
Three principal operational definitions of hardness
Weight
117
46. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
magnetic field
freezing point
Deposition
Velocity
47. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Test experiment - Step 3
Uranium
Newton's first law of motion
Third - class lever
48. The top of a wave's 'hill'
Test experiment - Step 3
presence
Second - class lever
Crest
49. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
Inclined plane
Thermal energy
Water
pH
50. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring
Carbon dioxide and methane
Liquids
nucleus
contrasted