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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 ratio of the output to the input force - Also called leverage - Results in less force applied over a greater distance - Helps to make work easier
Test experiment - Step 2 - Set up the procedure
Electric circuit
Mechanical advantage
Scratch hardness
2. Transition of heat through a medium - From a region of higher temperature to a region of lower temperature - Heat energy is transferred from one material to another by direct contact - Metals are good conductors of heat
Water
Heat conduction/Thermal conduction
Acid rain
Develop a hypothesis
3. Protons have a __________ electrical charge - and neutrons have no charge
freezing point
Simple machine
Newton's second law of motion
positive
4. Refers to various properties of matter in the solid phase that give it a high resistance to its shape changing when force is applied
proportional to its mass
Hardness
Forms of energy
Screw
5. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam
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6. 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
Wedge
Gravity
Materials with poor conductivity
Litmus test
7. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
Newton's second law of motion
Test experiment - Step 3
Nuclear fission
Second - class lever
8. 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
contrasted
Current
117
9. Symbol: He Protons: 2 Neutrons: 2 Mass: 4
Helium
First - class lever
pH
Liquids
10. 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
Weight
pH
Kinetic and potential energy
Wheel and axle
11. 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
Electrons
Solids
Carbon dioxide and methane
Fluorescent lamp/fluorescent tube
12. 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)
Velocity
Optics
Test experiment - Step 2 - Set up the procedure
Physical changes
13. The earth's __________ orients the iron needles of navigational compasses
pH indicator
Compounds
magnetic field
Nuclear fusion
14. The branches of natural sciences that study the nature and properties of energy and non - living matter
Physical sciences
Refraction
magnetic field
Atomic number
15. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)
Test experiment - Step 1 - Select the materials
Sublimination
Compounds
Materials with high conductivity
16. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Indentation hardness
Fluorescent lamp/fluorescent tube
Kinetic and potential energy
Refractive index
17. The pitch of a sound depends on how fast the particles of a medium vibrate
presence
positive
Pitch
Convection
18. Solids - liquids - and gases
pH indicator
Three states of matter
Dependent variable (responding variable)
Chemical changes
19. 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
Pitch
Litmus
Materials with high conductivity
20. 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
Reflection
Hardness
Three principal operational definitions of hardness
Wedge
21. 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
Three states of matter
Oxygen
Solution
Compounds
22. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
Current
Measurement
Hydrogen
The formation of rust
23. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
south pole
Carbon dioxide and methane
Angle of incidence
First - class lever
24. 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
south pole
117
Matter
The six classical simple machines
25. 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
Electrons
Dependent variable (responding variable)
Temperature conversions
Interval
26. Atoms are made up of several tiny parts - At the center of an atom is a core called the __________ - which is made up of particles called protons and neutrons
nucleus
Carbon dioxide and methane
Density
Acid rain
27. Some gases can transition directly to a solid Example: the formation of frost
number of protons
Three states of matter
Deposition
Three principal operational definitions of hardness
28. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)
Renewable energy
Electricity
Wavelength
Crest
29. 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
Wedge
Materials with poor conductivity
ratio of the length of the sloped surface to the height
Hardness
30. 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
Chemical changes
Ballast
Incandescent light bulb
Ratio of the length of its slope to its width
31. 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
Compounds
Carbon
Density
Law of reflection
32. Formed by the chemical combination of two or more elements in a fixed ratio Example: water
Test experiment - Step 2 - Set up the procedure
Compounds
Litmus
Chemical changes
33. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Test experiment - Step 3
Thermal radiation
Steps in conducting a scientific investigation
Velocity
34. Displayed by permanent magnets and around electric currents
The six classical simple machines
Current
Magnetism
Ballast
35. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
Amplitude
Solution
nucleus
Water
36. 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
Metals in the periodic table
Mixture
Oxygen
117
37. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
Physical properties
Newton's first law of motion
Simple machine
Three principal operational definitions of hardness
38. Major greenhouse gases
Density
Carbon dioxide and methane
Thermal energy
Mixture
39. For every action (applied force) - there is an equal and opposite reaction
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40. A hypothesis is an attempt to answer the question or predict the outcome - - A hypothesis is a possible explanation for a set of observations
Law of conservation of energy
Develop a hypothesis
Inclined plane
Rainbow
41. 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
Law of reflection
Electric circuit
Electrons
Variables that are controlled
42. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Physical changes
freezing point
Rainbow
Uranium
43. Arranges all of the known elements from left to right and top to bottom in order of increasing atomic number - and they generally coincide with their increasing atomic mass
Materials with poor conductivity
Chemical reactions
The periodic table of the elements
Boyle's Law
44. 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
Optics
The formation of rust
Indentation hardness
45. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron
Carbon dioxide and methane
Deposition
The formation of rust
Nuclear fusion
46. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms
Energy
Fluorescent lamp/fluorescent tube
Boyle's Law
pressure and temperature
47. 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
number of protons
Test experiment - Step 1 - Select the materials
Chemical changes
Carbon dioxide and methane
48. Temperature scale -0
Solution
Ratio of the length of its slope to its width
Celsius (
Transfer of heat
49. 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 -
Hydrogen
pH
Rebound hardness
Newton's first law of motion
50. A conclusion is a summary and an explanation of the results of an experiment - Does the data support the hypothesis? If not - a new hypothesis can be formed
positive
Draw conclusion
Higher boiling point
Simple machine
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