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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 wave's height - the distance between its resting position and its crest
Lever
Electromagnetic radiation
Amplitude
positive
2. 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
Thermal radiation
contrasted
Kinetic and potential energy
3. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)
Iron
Weight
Fluorescent lamp/fluorescent tube
Solids
4. 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
Forms of energy
south pole
intermediate
Third - class lever
5. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam
6. The number of waves produced in a given time
Amplitude
Frequency
Transfer of heat
Iron
7. The portion of the light that crosses the boundary is - however - deflected in another direction - and the ______ does not equal the angle of incidence
pH indicator
Angle of refraction
The periodic table of the elements
Uranium
8. 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
Hydrogen
Efficiently
Forms of energy
groups or families
9. 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
Magnetism
Steps in conducting a scientific investigation
positive
Electrons
10. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
Water
Simple machine
Third - class lever
Gases
11. The top of a wave's 'hill'
Compounds
Current
Crest
Water
12. 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
pH
Iron
Electric circuit
Second - class lever
13. Anything that has mass and occupies space - Everything you see and touch is composed of matter
Matter
positive
Water
Materials with poor conductivity
14. Salt has a ___________ than water and therefore doesn't evaporate with the water
Higher boiling point
Energy
Chemical reactions
pH indicator
15. The burning of coal also contributes to the formation of...
Acid rain
Indentation hardness
Convection
Physical sciences
16. Scratch hardness - indentation hardness - and rebound hardness
Mechanical advantage
Chemical elements
The six classical simple machines
Three principal operational definitions of hardness
17. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Law of reflection
First - class lever
Chemical elements
Forms of energy
18. 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
Non - metals in the periodic table
Law of conservation of energy
presence
Celsius (
19. 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)
Scratch hardness
Ratio of the length of its slope to its width
Lever
Wheel and axle
20. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)
Nuclear fusion
Water
pH indicator
Materials with high conductivity
21. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
Screw
Static electricity
proportional to its mass
Matter
22. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Litmus
Acceleration
Indentation hardness
Newton's second law of motion
23. 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
Solids
Density
Litmus test
Measurement
24. List the specific materials to be used in the experiment - This allows for replication of the experiment
Refractive index
Test experiment - Step 1 - Select the materials
equally
Electricity
25. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Uranium
Sublimination
Gravitation
chemical symbol
26. Displayed by permanent magnets and around electric currents
Thermal radiation
Test experiment - Step 3
Metals in the periodic table
Magnetism
27. For every action (applied force) - there is an equal and opposite reaction
28. 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
Incandescent light bulb
Iron
Liquids
29. 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 -
Physical changes
pH indicator
pH
Fahrenheit (
30. 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
Wedge
Chemical reactions
Refraction
Inclined plane
31. A compressed gas pushes out __________ in all directions
Chemical changes
equally
Uranium
Fahrenheit (
32. 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
Convection
number of protons
Independent variable (manipulated variable)
Nuclear fusion
33. Known as insulators - In materials that act as insulators - the electrons are held tightly inside their atoms and the electrons cannot move freely - Include plastic - rubber - glass - air - and wood
Materials with poor conductivity
Table salt
Lever
Magnetism
34. 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
Law of reflection
Electric current
Refractive index
Angle of incidence
35. Heat tends to move from a high - temperature region to a low- temperature region - This heat transfer may occur by the mechanisms of conduction - radiation - and convection
Compounds
Nuclear fission
Transfer of heat
Wheel and axle
36. Transferring of heat by emission and dissemination of waves or particles - Generated when heat from the movement of charged particles within atoms is converted to electromagnetic radiation - Electromagnetic radiation emitted from the surface of an ob
Non - metals in the periodic table
Thermal radiation
average atomic mass
Test experiment - Step 1 - Select the materials
37. A mechanical device that changes the direction or magnitude of a force - The simplest mechanisms that use mechanical advantage to multiply force - Uses a single applied force to do work against a single load force
nucleus
Simple machine
Amplitude
Third - class lever
38. 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
Screw
Newton's third law of motion
Test experiment - Step 2 - Set up the procedure
Chemical changes
39. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
117
Three principal operational definitions of hardness
south pole
Carbon dioxide and methane
40. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
Chemical elements
Kinetic and potential energy
Oxygen
Nuclear fission
41. 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
Water
First - class lever
Violet
The periodic table of the elements
42. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object
Crest
Materials with poor conductivity
pressure and temperature
Scratch hardness
43. 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
Boyle's Law
Fluorescent lamp/fluorescent tube
Frequency
Current
44. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
Current
Uranium
Crest
Water
45. 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
Independent variable (manipulated variable)
Mixture
Table salt
Develop a hypothesis
46. Collect Data (results) - Analyze the data to look for patterns or trends - Record measurements and observations during the experiment - Present data in a graph - table - or another form
Rebound hardness
Physical changes
Helium
Test experiment - Step 3
47. The pitch of a sound depends on how fast the particles of a medium vibrate
Atomic number
Amplitude
Pitch
number of protons
48. 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
117
Mass
The periodic table of the elements
Gravity
49. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
Three principal operational definitions of hardness
Physical properties
Fluorescent lamp/fluorescent tube
Mixture
50. Protons have a __________ electrical charge - and neutrons have no charge
117
The formation of rust
positive
Three states of matter