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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
Charles's Law
ratio of the length of the sloped surface to the height
Mechanical advantage
Renewable energy
2. 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
Second - class lever
Angle of refraction
Energy
pressure and temperature
3. Height of the bounce of an object dropped o the material - related to elasticity
Celsius (
Mohs' scale of hardness
Rebound hardness
ratio of the length of the sloped surface to the height
4. The distance between two consecutive points on a wave (crest to crest)
Interval
Wavelength
Table salt
Carbon
5. 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)
Law of conservation of energy
Thermal radiation
Test experiment - Step 2 - Set up the procedure
Static electricity
6. 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
Electric circuit
contrasted
Electrons
7. Kinetic energy: energy possessed by a moving object - An object in an unstable position has potential energy - for the position could be converted into movement Example: a baseball thrown vertically upward
The formation of rust
intermediate
Kinetic and potential energy
Mixture
8. Temperature scale -0
Uranium
Materials with poor conductivity
Celsius (
nucleus
9. The liquid state is __________ between the solid and gaseous states with regard to molecular motion and attractive forces between molecules Examples: water - oil - milk - honey
Nuclear energy
intermediate
Test experiment - Step 1 - Select the materials
Distillation
10. Salt has a ___________ than water and therefore doesn't evaporate with the water
Higher boiling point
presence
Distillation
Energy
11. 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
Motion
Efficiently
Physical changes
Nuclear energy
12. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object
Pitch
Scratch hardness
Nuclear fission
magnetic field
13. List the specific materials to be used in the experiment - This allows for replication of the experiment
Test experiment - Step 1 - Select the materials
Deposition
The six classical simple machines
Non - metals in the periodic table
14. 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
Nonrenewable energy
Amplitude
Mass
Law of conservation of energy
15. 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
Newton's first law of motion
Dependent variable (responding variable)
Violet
Static electricity
16. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms
Energy
Scratch hardness
Physical changes
Mohs' scale of hardness
17. 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
First - class lever
pH indicator
Temperature conversions
Frequency
18. 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
Gravity
Iron
117
Chemical elements
19. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
Gravity
magnetic field
Fluorescent lamp/fluorescent tube
Nuclear fission
20. The burning of coal also contributes to the formation of...
presence
Acid rain
Test experiment - Step 2 - Set up the procedure
Fluorescent lamp/fluorescent tube
21. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)
Weight
Inclined plane
Water
Atomic number
22. Symbol: C Protons: 6 Neutrons: 6 Mass: 12
Transfer of heat
Carbon
Non - metals in the periodic table
Steps in conducting a scientific investigation
23. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron
Three states of matter
pressure and temperature
Third - class lever
The formation of rust
24. A hypothesis is an attempt to answer the question or predict the outcome - - A hypothesis is a possible explanation for a set of observations
Velocity
Current
Celsius (
Develop a hypothesis
25. 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
Transfer of heat
contrasted
Temperature conversions
Inclined plane
26. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
chemical symbol
Acid rain
Fahrenheit (
proportional to its mass
27. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Mohs' scale of hardness
Forms of energy
Litmus
freezing point
28. The portion of the light that crosses the boundary is - however - deflected in another direction - and the ______ does not equal the angle of incidence
Angle of refraction
Litmus test
Physical sciences
Heat conduction/Thermal conduction
29. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
groups or families
presence
Three principal operational definitions of hardness
Gases
30. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
Gravity
Water
chemical symbol
Inclined plane
31. Anything that has mass and occupies space - Everything you see and touch is composed of matter
Gases
Matter
Test experiment - Step 3
pressure and temperature
32. 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
Three principal operational definitions of hardness
Weight
Boyle's Law
The periodic table of the elements
33. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam
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34. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Third - class lever
Newton's second law of motion
Angle of refraction
Refractive index
35. Formed by the chemical combination of two or more elements in a fixed ratio Example: water
number of protons
Compounds
Refractive index
Table salt
36. Displayed by permanent magnets and around electric currents
Mechanical advantage
Magnetism
First - class lever
Atomic number
37. 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
Litmus
Physical properties
Wheel and axle
Matter
38. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
groups or families
Mohs' scale of hardness
Test experiment - Step 2 - Set up the procedure
south pole
39. Obtained by two different means - fission and fusion
Density
Nuclear energy
nucleus
Wheel and axle
40. The shortest wavelength; red is the longest
Violet
Uranium
Pulley/block
Water
41. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Heat conduction/Thermal conduction
Uranium
Reflection
freezing point
42. 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
Physical changes
Carbon
Metals in the periodic table
Simple machine
43. 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
Non - metals in the periodic table
Carbon
Kinetic and potential energy
presence
44. A natural phenomenon by which objects with mass attract one another - Compels dispersed matter to coalesce - and thus it accounts for the very existence of the earth - the sun - and most of the macroscopic objects in the universe - Responsible for ke
Lever
Forms of energy
Newton's second law of motion
Gravitation
45. 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
Dependent variable (responding variable)
Solution
Current
Helium
46. Can multiply force or distance depending on the location of the fulcrum End: Output force Middle: Fulcrum Other end: Input force Examples: seesaws - scissors - pliers
Thermal energy
The periodic table of the elements
Screw
First - class lever
47. 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
Acid rain
Law of conservation of energy
Weight
Convection
48. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Wedge
Velocity
Renewable energy
The six classical simple machines
49. A degree on the Fahrenheit scale is 1/180th of the interval between the __________ and boiling point
Forms of energy
Screw
freezing point
Inclined plane
50. 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
Hardness
Reflection
Wedge
Mixture