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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
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.
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. Results when electrical charges buildup or increase on the surface of a material - here - there is no current flowing as would be found in electrical outlets - When certain materials are rubbed together - electrons can move from one object to the oth
Static electricity
Materials with poor conductivity
Light
Newton's first law of motion
2. 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
Hydrogen
intermediate
pH
Thermal radiation
3. Resistance to plastic (permanent) deformation due to a constant load from a sharp object
Materials with poor conductivity
Newton's first law of motion
Indentation hardness
Matter
4. In optics - refraction occurs when light waves travel from a medium with a given refractive index to a medium with another index Example: A ray of light will refract as it enters and leaves glass - assuming there is a change in the refractive index.
Inclined plane
Law of conservation of energy
Hydrogen
Optics
5. The earth's __________ orients the iron needles of navigational compasses
Materials with high conductivity
Chemical changes
magnetic field
Gravity
6. 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
south pole
Non - metals in the periodic table
Measurement
Independent variable (manipulated variable)
7. 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
Test experiment - Step 3
The formation of rust
ratio of the length of the sloped surface to the height
chemical symbol
8. 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
Nuclear fusion
Table salt
Mass
Carbon
9. 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
Measurement
Sublimination
Litmus
Mechanical advantage
10. Symbol: Fe Protons: 26 Neutrons: 30 Mass 56
Charles's Law
Amplitude
Acid rain
Iron
11. Salt has a ___________ than water and therefore doesn't evaporate with the water
Current
Inclined plane
Develop a hypothesis
Higher boiling point
12. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
Wheel and axle
Incandescent light bulb
Physical changes
Physical properties
13. Major greenhouse gases
Iron
Carbon dioxide and methane
contrasted
Litmus test
14. 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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15. 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
First - class lever
Liquids
Static electricity
Chemical reactions
16. 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
Inclined plane
Transfer of heat
Non - metals in the periodic table
Newton's first law of motion
17. 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
Rainbow
Uranium
south pole
Amplitude
18. 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
Solution
Wheel and axle
Three principal operational definitions of hardness
pressure and temperature
19. 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
Draw conclusion
117
Newton's third law of motion
Light
20. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
Litmus test
The six classical simple machines
Rainbow
Motion
21. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Velocity
positive
Boyle's Law
Fluorescent lamp/fluorescent tube
22. A form of energy that can be used to produce sound - light - heat - and power - it exists where the number of negative electrons does not precisely equal the number of positive protons - Electrons are held in the atom by an electrical force and have
Celsius (
Nuclear energy
Nonrenewable energy
Electricity
23. 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
groups or families
Scratch hardness
Nuclear energy
24. 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
nucleus
Temperature conversions
Fluorescent lamp/fluorescent tube
Dependent variable (responding variable)
25. Composed of only one atom and cannot be separated into different substances except in some instances by radioactive decay or by nuclear reactions
Ratio of the length of its slope to its width
Refractive index
Density
Chemical elements
26. 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)
Carbon
Lever
Law of conservation of energy
Velocity
27. A wave's height - the distance between its resting position and its crest
Physical properties
Screw
pressure and temperature
Amplitude
28. 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
Develop a hypothesis
Thermal radiation
Test experiment - Step 2 - Set up the procedure
Nonrenewable energy
29. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight
Mass
Litmus
Acceleration
Pulley/block
30. Heat can be converted to motion - and motion can produce heat
Nonrenewable energy
Thermal energy
117
Test experiment - Step 1 - Select the materials
31. A compressed gas pushes out __________ in all directions
Gravity
equally
Materials with poor conductivity
Refraction
32. The particular state of water is determined by ___________ - the behavior of water at one atmosphere (sea level) - freezing at 0
Refractive index
pressure and temperature
Nuclear energy
Metals in the periodic table
33. 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
contrasted
Angle of refraction
Forms of energy
Kinetic and potential energy
34. 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
Optics
freezing point
Gravitation
Density
35. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
Rainbow
Water
Refraction
positive
36. 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
Reflection
Dependent variable (responding variable)
Metals in the periodic table
Scratch hardness
37. For smooth surfaces - the angle at which light is incident on the surface equals the angle at which it is reflected
Refraction
Table salt
Ratio of the length of its slope to its width
Law of reflection
38. 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
Distillation
Celsius (
Density
Materials with poor conductivity
39. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
Hydrogen
presence
Test experiment - Step 3
Reflection
40. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
pH indicator
Gases
Solids
Water
41. 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
Acid rain
Iron
Fahrenheit (
Independent variable (manipulated variable)
42. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron
Light
Wedge
Gravitation
The formation of rust
43. 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
Variables that are controlled
groups or families
Dependent variable (responding variable)
44. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
Test experiment - Step 1 - Select the materials
Angle of incidence
south pole
Renewable energy
45. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes
Transfer of heat
Forms of energy
Reflection
Thermal radiation
46. 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
Electric circuit
Interval
magnetic field
Incandescent light bulb
47. The shortest wavelength; red is the longest
Mass
Violet
Water
Mohs' scale of hardness
48. Move around the nucleus in electron clouds - have a negative charge - and they are attracted to the positively charged protons in the nucleus - This attraction keeps the electrons in orbit around the nucleus
proportional to its mass
Electrons
Deposition
Solids
49. 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
Gravity
Steps in conducting a scientific investigation
First - class lever
equally
50. A grooved wheel with a rope or other item wrapped around it - used to change the direction of an applied force - change the amount of force - transmit rotational motion - or realize a mechanical advantage in either a linear or a rotational system of
Pulley/block
Chemical elements
Sublimination
Static electricity
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