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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. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions
Litmus test
Gravitation
Oxygen
Draw conclusion
2. Height of the bounce of an object dropped o the material - related to elasticity
positive
Inclined plane
Rebound hardness
Screw
3. 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
Fahrenheit (
Forms of energy
Fluorescent lamp/fluorescent tube
Charles's Law
4. Some gases can transition directly to a solid Example: the formation of frost
Deposition
Violet
The six classical simple machines
Solids
5. Solids - liquids - and gases
Celsius (
Mixture
Violet
Three states of matter
6. The top of a wave's 'hill'
Crest
Compounds
Celsius (
Inclined plane
7. 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
average atomic mass
Density
presence
8. This is the variable that changes as a result of the manipulated variable. The dependent variable is observed and measured. Examples include determining how long various saltwater solutions take to freeze - and determining the number of cycles a pend
Materials with poor conductivity
Dependent variable (responding variable)
Forms of energy
Water
9. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Indentation hardness
Simple machine
Wedge
Density
10. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
Hydrogen
groups or families
proportional to its mass
Wheel and axle
11. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object
Current
Scratch hardness
Matter
Efficiently
12. A water - soluble mixture of different dyes extracted from lichens - It is often absorbed onto filter paper
Litmus
Test experiment - Step 2 - Set up the procedure
Temperature conversions
Law of conservation of energy
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
Indentation hardness
Ballast
Atomic number
Carbon
14. The earth's __________ orients the iron needles of navigational compasses
magnetic field
Mixture
Refractive index
Oxygen
15. Scratch hardness - indentation hardness - and rebound hardness
Mass
Deposition
Three principal operational definitions of hardness
Independent variable (manipulated variable)
16. 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
Velocity
Efficiently
Steps in conducting a scientific investigation
The formation of rust
17. 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
Newton's third law of motion
Variables that are controlled
Kinetic and potential energy
Wedge
18. Energy can be neither created nor destroy
Litmus
presence
Crest
Law of conservation of energy
19. 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
pressure and temperature
Materials with high conductivity
Matter
20. The terms gravitation and gravity are mostly interchangeable in everyday use - refers specifically to the gravitational force exerted by the earth on objects in its vicinity
Hardness
The six classical simple machines
Gravity
Kinetic and potential energy
21. 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
Variables that are controlled
Non - metals in the periodic table
Fluorescent lamp/fluorescent tube
Independent variable (manipulated variable)
22. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
ratio of the length of the sloped surface to the height
Electric current
Third - class lever
Weight
23. 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
proportional to its mass
Non - metals in the periodic table
Chemical reactions
Current
24. Major greenhouse gases
Carbon dioxide and methane
Sublimination
Crest
Newton's first law of motion
25. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
Wheel and axle
Chemical reactions
Water
Magnetism
26. Symbol: He Protons: 2 Neutrons: 2 Mass: 4
Helium
Electricity
Third - class lever
Refraction
27. When foreign substances are dissolved in water it creates a solution - Solutions with a pH of less than 7.0 are said to be acidic - and solutions with a pH greater than 7.0 are said to be basic or alkaline
Compounds
Solution
Electrons
Celsius (
28. 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
magnetic field
Transfer of heat
Physical properties
29. 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)
Lever
Carbon dioxide and methane
The periodic table of the elements
Simple machine
30. 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)
Rebound hardness
Wheel and axle
Gravity
Test experiment - Step 2 - Set up the procedure
31. 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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32. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
Third - class lever
proportional to its mass
Density
Higher boiling point
33. 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
Frequency
Chemical reactions
Nuclear fusion
Gravitation
34. 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
Refraction
Acid rain
Electric circuit
Helium
35. Unlike incandescent lamps - fluorescent lamps always require a ______ to regulate the flow of power through the lamp
Gases
Ballast
Uranium
Physical changes
36. 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)
Atomic number
average atomic mass
groups or families
Physical sciences
37. 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
The formation of rust
Law of conservation of energy
Metals in the periodic table
Test experiment - Step 3
38. 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
Atomic number
Current
equally
Electric current
39. List the specific materials to be used in the experiment - This allows for replication of the experiment
Chemical reactions
Test experiment - Step 1 - Select the materials
Pulley/block
The formation of rust
40. 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
Incandescent light bulb
magnetic field
Solids
Chemical reactions
41. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)
Pitch
Hydrogen
Materials with high conductivity
Magnetism
42. Temperature scale -0
Distillation
freezing point
Celsius (
Light
43. Formed by the chemical combination of two or more elements in a fixed ratio Example: water
Rainbow
Compounds
Angle of refraction
Rebound hardness
44. A wave's height - the distance between its resting position and its crest
Higher boiling point
Amplitude
Materials with poor conductivity
average atomic mass
45. A compressed gas pushes out __________ in all directions
Second - class lever
Reflection
equally
Wavelength
46. 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
equally
Distillation
Rebound hardness
Nuclear energy
47. 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
Non - metals in the periodic table
Nonrenewable energy
Fahrenheit (
Current
48. 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
Hydrogen
Wavelength
Wheel and axle
49. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle
Table salt
Current
Test experiment - Step 1 - Select the materials
The six classical simple machines
50. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring
Nonrenewable energy
Liquids
Materials with poor conductivity
Iron