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Test your basic knowledge |
CSET Physical Science 3
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Subjects
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cset
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science
Instructions:
Answer 50 questions in 15 minutes.
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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. 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
Water
Inclined plane
Indentation hardness
Celsius (
2. 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
Optics
groups or families
Water
3. The burning of coal also contributes to the formation of...
Gravity
Three states of matter
Acid rain
Physical sciences
4. The terms gravitation and gravity are mostly interchangeable in everyday use - refers specifically to the gravitational force exerted by the earth on objects in its vicinity
Gravity
Physical properties
equally
positive
5. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Nonrenewable energy
Forms of energy
Boyle's Law
Metals in the periodic table
6. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle
Physical properties
The six classical simple machines
Matter
Liquids
7. The distance between two consecutive points on a wave (crest to crest)
Litmus
Sublimination
Wavelength
Law of conservation of energy
8. Some gases can transition directly to a solid Example: the formation of frost
Deposition
Water
number of protons
average atomic mass
9. 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
Angle of incidence
Sublimination
Fahrenheit (
Thermal energy
10. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Three states of matter
Velocity
Optics
Nonrenewable energy
11. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
Hydrogen
Newton's third law of motion
Physical sciences
Lever
12. Composed of only one atom and cannot be separated into different substances except in some instances by radioactive decay or by nuclear reactions
Motion
Newton's third law of motion
south pole
Chemical elements
13. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
south pole
Nuclear fission
Newton's first law of motion
Wheel and axle
14. 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
The periodic table of the elements
Wedge
Materials with poor conductivity
contrasted
15. 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)
Chemical changes
Electric circuit
Temperature conversions
Lever
16. The branches of natural sciences that study the nature and properties of energy and non - living matter
Mass
Newton's third law of motion
Physical sciences
Nuclear fission
17. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight
Nonrenewable energy
Angle of refraction
Mass
Interval
18. 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
Ratio of the length of its slope to its width
Test experiment - Step 3
Compounds
Chemical reactions
19. 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
Higher boiling point
117
Physical properties
20. 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
First - class lever
Simple machine
The six classical simple machines
intermediate
21. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
Newton's third law of motion
Incandescent light bulb
Magnetism
Gases
22. Salt has a ___________ than water and therefore doesn't evaporate with the water
Higher boiling point
Thermal energy
Reflection
Fahrenheit (
23. 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
Uranium
Wavelength
Nuclear fusion
Nuclear fission
24. 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
Mixture
Nuclear fission
Efficiently
Three principal operational definitions of hardness
25. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring
Refractive index
117
Dependent variable (responding variable)
Liquids
26. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
Inclined plane
Hardness
Physical properties
average atomic mass
27. The earth's __________ orients the iron needles of navigational compasses
Test experiment - Step 3
magnetic field
Electromagnetic radiation
presence
28. The resulting piece of paper or solution with water becomes a ________ (one of the oldest) - used to test materials for acidity
Three states of matter
Test experiment - Step 2 - Set up the procedure
pH indicator
Current
29. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object
Ratio of the length of its slope to its width
Solids
Magnetism
Scratch hardness
30. Height of the bounce of an object dropped o the material - related to elasticity
Crest
Litmus test
Wheel and axle
Rebound hardness
31. Energy can be neither created nor destroy
pressure and temperature
Mass
Law of conservation of energy
number of protons
32. Symbol: C Protons: 6 Neutrons: 6 Mass: 12
The six classical simple machines
Carbon
Deposition
Fahrenheit (
33. 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
Pulley/block
Second - class lever
contrasted
Nonrenewable energy
34. 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
Compounds
Electrons
Nuclear fusion
Chemical changes
35. The shortest wavelength; red is the longest
Violet
Energy
Helium
Ballast
36. 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
Optics
Refractive index
freezing point
presence
37. 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
presence
Atomic number
Table salt
Materials with high conductivity
38. 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
Third - class lever
Metals in the periodic table
Atomic number
Ratio of the length of its slope to its width
39. A compressed gas pushes out __________ in all directions
equally
Energy
Oxygen
Boyle's Law
40. 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
Draw conclusion
ratio of the length of the sloped surface to the height
Thermal energy
Water
41. 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
Gravity
Ratio of the length of its slope to its width
Third - class lever
Crest
42. Are inclined planes - Can convert a rotational force (torque) to a linear force - and vice versa - The ratio of threading determines the mechanical advantage of the machine - More threading increases the mechanical advantage
Crest
Screw
Test experiment - Step 1 - Select the materials
Celsius (
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
Renewable energy
Metals in the periodic table
Frequency
presence
44. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
Mechanical advantage
Angle of refraction
Water
Draw conclusion
45. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
proportional to its mass
Frequency
Carbon
Table salt
46. The number of waves produced in a given time
Frequency
freezing point
Celsius (
Three principal operational definitions of hardness
47. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes
Reflection
Pulley/block
Chemical reactions
Draw conclusion
48. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)
Boyle's Law
Weight
Angle of refraction
Water
49. 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
The six classical simple machines
Heat conduction/Thermal conduction
Mechanical advantage
Three states of matter
50. 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
Thermal radiation
Physical sciences
Electrons
Density
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