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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. 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
Test experiment - Step 2 - Set up the procedure
Frequency
Incandescent light bulb
Mohs' scale of hardness
2. 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
Simple machine
Wheel and axle
Chemical elements
average atomic mass
3. Composed of only one atom and cannot be separated into different substances except in some instances by radioactive decay or by nuclear reactions
Fluorescent lamp/fluorescent tube
Chemical elements
intermediate
Kinetic and potential energy
4. Elements are assigned atomic numbers equal to the __________ in the nucleus of their atoms - Each element has a different number of protons
Motion
number of protons
Test experiment - Step 1 - Select the materials
Renewable energy
5. Energy taken from finite resources that will eventually dwindle - becoming too expensive or too environmentally damaging to retrieve - Fossil fuels include coal - petroleum - and natural gas - Fossil fuels are limited and nonrenewable and contribute
Frequency
Nonrenewable energy
Efficiently
Lever
6. The sum of the protons and neutrons gives an ______________ for the element
nucleus
average atomic mass
Test experiment - Step 1 - Select the materials
Charles's Law
7. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring
Liquids
First - class lever
Amplitude
Refraction
8. The pitch of a sound depends on how fast the particles of a medium vibrate
Pitch
Newton's first law of motion
Higher boiling point
magnetic field
9. A hypothesis is an attempt to answer the question or predict the outcome - - A hypothesis is a possible explanation for a set of observations
Test experiment - Step 1 - Select the materials
Develop a hypothesis
Convection
Kinetic and potential energy
10. A compressed gas pushes out __________ in all directions
Electric current
Uranium
Mass
equally
11. Also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism
Simple machine
Three states of matter
Kinetic and potential energy
Electric current
12. The beginning of scientific wisdom - The physicist's first reaction to a new idea is to ask: Can it be measured? Can I describe it with numbers?
Three states of matter
Celsius (
Mixture
Measurement
13. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object
magnetic field
Thermal energy
Mechanical advantage
Scratch hardness
14. 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
Physical properties
Fluorescent lamp/fluorescent tube
Optics
Simple machine
15. 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
pH indicator
Amplitude
nucleus
Chemical reactions
16. Height of the bounce of an object dropped o the material - related to elasticity
freezing point
Rebound hardness
Mixture
magnetic field
17. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes
equally
Reflection
Angle of refraction
Newton's second law of motion
18. For smooth surfaces - the angle at which light is incident on the surface equals the angle at which it is reflected
Temperature conversions
Electromagnetic radiation
Wedge
Law of reflection
19. The shortest wavelength; red is the longest
Boyle's Law
Uranium
Violet
Frequency
20. The top of a wave's 'hill'
The periodic table of the elements
Crest
Law of reflection
Physical sciences
21. 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
Liquids
Refraction
Ratio of the length of its slope to its width
groups or families
22. Some of the light is reflected - the angle of reflection being equal to the...
Newton's second law of motion
ratio of the length of the sloped surface to the height
Angle of incidence
Ballast
23. 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
Sublimination
Reflection
presence
Screw
24. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
Hydrogen
Boyle's Law
Solution
Electricity
25. Some gases can transition directly to a solid Example: the formation of frost
Newton's first law of motion
Ballast
Deposition
Kinetic and potential energy
26. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight
Refractive index
First - class lever
Mass
Boyle's Law
27. 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
Dependent variable (responding variable)
Newton's first law of motion
Transfer of heat
Draw conclusion
28. List the specific materials to be used in the experiment - This allows for replication of the experiment
Thermal radiation
Boyle's Law
Test experiment - Step 1 - Select the materials
Electromagnetic radiation
29. 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
Independent variable (manipulated variable)
proportional to its mass
chemical symbol
Refractive index
30. The portion of the light that crosses the boundary is - however - deflected in another direction - and the ______ does not equal the angle of incidence
Physical sciences
Table salt
Angle of refraction
Optics
31. 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)
Law of conservation of energy
Litmus test
Newton's first law of motion
Lever
32. 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
Crest
Celsius (
Reflection
Fahrenheit (
33. Heat can be converted to motion - and motion can produce heat
equally
Wheel and axle
Steps in conducting a scientific investigation
Thermal energy
34. 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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35. 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
Inclined plane
Wheel and axle
Higher boiling point
Newton's first law of motion
36. The burning of coal also contributes to the formation of...
average atomic mass
Forms of energy
Weight
Acid rain
37. Major greenhouse gases
Carbon dioxide and methane
Rebound hardness
Ratio of the length of its slope to its width
Electrons
38. 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
Interval
Hydrogen
Indentation hardness
39. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam
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40. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Law of conservation of energy
Table salt
Thermal radiation
Forms of energy
41. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)
Materials with high conductivity
Incandescent light bulb
Gravity
Thermal radiation
42. 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
Deposition
Thermal radiation
Chemical reactions
Higher boiling point
43. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Scratch hardness
Velocity
Kinetic and potential energy
Reflection
44. 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
Wheel and axle
Chemical elements
nucleus
Dependent variable (responding variable)
45. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)
Test experiment - Step 1 - Select the materials
Wedge
Crest
Renewable energy
46. Scratch hardness - indentation hardness - and rebound hardness
Materials with high conductivity
Three principal operational definitions of hardness
Mixture
Amplitude
47. The resulting piece of paper or solution with water becomes a ________ (one of the oldest) - used to test materials for acidity
Screw
Lever
Iron
pH indicator
48. A compound composed of one atom of sodium and one atom of chlorine (NaCl - sodium chloride)
Temperature conversions
Table salt
Thermal radiation
Water
49. Refers to various properties of matter in the solid phase that give it a high resistance to its shape changing when force is applied
Weight
Materials with high conductivity
Indentation hardness
Hardness
50. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms
Energy
First - class lever
Kinetic and potential energy
Convection