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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. 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
Pitch
Sublimination
average atomic mass
Second - class lever
2. 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
Pitch
Refraction
Water
Transfer of heat
3. 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)
groups or families
Thermal radiation
Test experiment - Step 3
Table salt
4. 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
Draw conclusion
chemical symbol
Dependent variable (responding variable)
Chemical elements
5. Some of the light is reflected - the angle of reflection being equal to the...
Develop a hypothesis
Uranium
Angle of incidence
proportional to its mass
6. 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
Atomic number
Nuclear fission
Reflection
Nuclear fusion
7. Symbol: U Protons: 92 Neutrons: 146 Mass: 238
Interval
Water
pH indicator
Uranium
8. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions
Law of conservation of energy
Thermal energy
Litmus test
Hardness
9. Elements are assigned atomic numbers equal to the __________ in the nucleus of their atoms - Each element has a different number of protons
number of protons
Refractive index
proportional to its mass
Energy
10. 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
presence
Hydrogen
ratio of the length of the sloped surface to the height
Angle of incidence
11. The distance between two consecutive points on a wave (crest to crest)
Wavelength
Gravitation
Pitch
Distillation
12. 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
Carbon dioxide and methane
Sublimination
Pulley/block
Current
13. Displayed by permanent magnets and around electric currents
Heat conduction/Thermal conduction
Magnetism
Forms of energy
Gravity
14. 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
The periodic table of the elements
The formation of rust
Interval
Litmus test
15. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)
number of protons
Celsius (
Weight
Thermal energy
16. 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
The six classical simple machines
Solution
ratio of the length of the sloped surface to the height
Charles's Law
17. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Non - metals in the periodic table
Metals in the periodic table
Scratch hardness
Forms of energy
18. Solids - liquids - and gases
Oxygen
Three states of matter
Compounds
Electric current
19. Heat can be converted to motion - and motion can produce heat
Liquids
Angle of refraction
Thermal energy
Velocity
20. 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
Lever
Distillation
Iron
Water
21. Unlike incandescent lamps - fluorescent lamps always require a ______ to regulate the flow of power through the lamp
Refraction
First - class lever
Steps in conducting a scientific investigation
Ballast
22. 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
Fluorescent lamp/fluorescent tube
pH indicator
Nuclear fission
Metals in the periodic table
23. A degree on the Fahrenheit scale is 1/180th of the interval between the __________ and boiling point
Physical sciences
Carbon
Gravity
freezing point
24. These are the factors that are kept exactly the same in an experiment. In an experiment on plant growth - the variables could include amount of sunlight - type of soil - amount of water - and type of plant. Only one factor at a time is changed - whil
Table salt
Carbon dioxide and methane
Gravity
Variables that are controlled
25. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
Scratch hardness
Gases
Steps in conducting a scientific investigation
Test experiment - Step 3
26. 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
magnetic field
Nuclear fusion
Mixture
intermediate
27. Major greenhouse gases
Liquids
Heat conduction/Thermal conduction
Mohs' scale of hardness
Carbon dioxide and methane
28. After a rainstorm - the air is full of tiny drops of water - Each drop acts as a prism - splitting the light into the colors of the spectrum
contrasted
Pitch
south pole
Rainbow
29. 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 radiation
Newton's second law of motion
intermediate
First - class lever
30. 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
Current
Independent variable (manipulated variable)
Hydrogen
Matter
31. 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
Hardness
Velocity
32. The law of inertia - Without outside forces (such as gravity or friction) - an object at rest will remain at rest - while an object in motion will never stop or deviate from its course
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33. A compressed gas pushes out __________ in all directions
Fluorescent lamp/fluorescent tube
Transfer of heat
contrasted
equally
34. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object
Scratch hardness
Ratio of the length of its slope to its width
chemical symbol
Third - class lever
35. 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
Steps in conducting a scientific investigation
Fluorescent lamp/fluorescent tube
Kinetic and potential energy
Chemical changes
36. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
The formation of rust
Physical properties
Table salt
Current
37. 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
Hardness
groups or families
Kinetic and potential energy
Angle of refraction
38. 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
Renewable energy
Current
Steps in conducting a scientific investigation
average atomic mass
39. 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
Pitch
Materials with high conductivity
Gravitation
Draw conclusion
40. 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
Law of conservation of energy
Law of reflection
nucleus
Boyle's Law
41. Symbol: He Protons: 2 Neutrons: 2 Mass: 4
Celsius (
Helium
Physical changes
Hydrogen
42. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)
Gases
ratio of the length of the sloped surface to the height
Acceleration
Independent variable (manipulated variable)
43. 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 -
equally
Electric current
Light
pH
44. 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
presence
Motion
Chemical changes
45. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight
Violet
Mass
Rebound hardness
Iron
46. 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
117
Transfer of heat
Measurement
Crest
47. 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
The periodic table of the elements
Angle of incidence
117
Physical sciences
48. Height of the bounce of an object dropped o the material - related to elasticity
Third - class lever
Rebound hardness
Hydrogen
Nonrenewable energy
49. 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
Nuclear energy
Optics
Refractive index
Simple machine
50. Temperature scale -0
groups or families
Velocity
Steps in conducting a scientific investigation
Celsius (