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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. 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)
Test experiment - Step 2 - Set up the procedure
Efficiently
Non - metals in the periodic table
Solution
2. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes
Kinetic and potential energy
The periodic table of the elements
Compounds
Reflection
3. Anything that has mass and occupies space - Everything you see and touch is composed of matter
pH
Matter
Acceleration
Indentation hardness
4. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle
Amplitude
Refraction
The six classical simple machines
Hydrogen
5. 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
positive
Electric current
Pulley/block
Liquids
6. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen
Test experiment - Step 3
Water
Velocity
Helium
7. 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
Uranium
Wedge
Velocity
Develop a hypothesis
8. Refers to various properties of matter in the solid phase that give it a high resistance to its shape changing when force is applied
Chemical elements
Iron
Hardness
ratio of the length of the sloped surface to the height
9. 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 -
Chemical changes
Litmus test
chemical symbol
pH
10. The particular state of water is determined by ___________ - the behavior of water at one atmosphere (sea level) - freezing at 0
Independent variable (manipulated variable)
pressure and temperature
Litmus
Nuclear energy
11. A wave's height - the distance between its resting position and its crest
Sublimination
Iron
Amplitude
Crest
12. 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
Renewable energy
Efficiently
Measurement
Metals in the periodic table
13. Heat can be converted to motion - and motion can produce heat
Thermal energy
Gases
Draw conclusion
Three principal operational definitions of hardness
14. 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
Solids
Electrons
Convection
Distillation
15. List the specific materials to be used in the experiment - This allows for replication of the experiment
Matter
Static electricity
Incandescent light bulb
Test experiment - Step 1 - Select the materials
16. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)
Rebound hardness
Velocity
Interval
Gases
17. 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
Test experiment - Step 3
Pulley/block
pressure and temperature
Fluorescent lamp/fluorescent tube
18. 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
Heat conduction/Thermal conduction
Simple machine
Velocity
Celsius (
19. 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
Hydrogen
Static electricity
south pole
Second - class lever
20. 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
Crest
Simple machine
Nuclear fusion
Deposition
21. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms
Energy
Density
Electric circuit
Angle of refraction
22. 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
Chemical changes
Rainbow
Boyle's Law
Solids
23. The earth's __________ orients the iron needles of navigational compasses
Litmus test
magnetic field
Renewable energy
Temperature conversions
24. Symbol: He Protons: 2 Neutrons: 2 Mass: 4
pressure and temperature
Electric circuit
Helium
Solids
25. Height of the bounce of an object dropped o the material - related to elasticity
Gravitation
Mechanical advantage
Rebound hardness
Materials with poor conductivity
26. 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
Wheel and axle
Ratio of the length of its slope to its width
Variables that are controlled
Table salt
27. 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
Wavelength
Static electricity
Reflection
28. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron
The formation of rust
The six classical simple machines
Steps in conducting a scientific investigation
Temperature conversions
29. The top of a wave's 'hill'
Transfer of heat
Fahrenheit (
Crest
Reflection
30. Major greenhouse gases
Transfer of heat
Compounds
Angle of incidence
Carbon dioxide and methane
31. The branches of natural sciences that study the nature and properties of energy and non - living matter
Physical sciences
Higher boiling point
Chemical elements
pressure and temperature
32. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring
Physical properties
Liquids
Measurement
Celsius (
33. Symbol: C Protons: 6 Neutrons: 6 Mass: 12
Variables that are controlled
Scratch hardness
Carbon
Chemical reactions
34. 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
Materials with poor conductivity
Physical changes
35. Symbol: Fe Protons: 26 Neutrons: 30 Mass 56
Iron
Forms of energy
presence
Newton's second law of motion
36. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)
Optics
Energy
Nuclear fusion
Materials with high conductivity
37. The path or circuit an electric current flows - Electricity requires a complete path for the electrons to flow - If the path is broken and there are not alternative paths for the electrons to follow - the electrons will not move - make it possible fo
Thermal radiation
Materials with high conductivity
Electric circuit
The six classical simple machines
38. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Compounds
Draw conclusion
positive
Third - class lever
39. 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
Refraction
Newton's first law of motion
Velocity
Mixture
40. 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
intermediate
number of protons
Gases
groups or families
41. The burning of coal also contributes to the formation of...
Fluorescent lamp/fluorescent tube
Acid rain
Angle of refraction
Weight
42. For smooth surfaces - the angle at which light is incident on the surface equals the angle at which it is reflected
Thermal energy
Electromagnetic radiation
Non - metals in the periodic table
Law of reflection
43. 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
Matter
Heat conduction/Thermal conduction
Forms of energy
Screw
44. Transition of heat through a medium - From a region of higher temperature to a region of lower temperature - Heat energy is transferred from one material to another by direct contact - Metals are good conductors of heat
Newton's first law of motion
Frequency
Rebound hardness
Heat conduction/Thermal conduction
45. 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
Mohs' scale of hardness
Wavelength
equally
Inclined plane
46. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight
Ballast
Draw conclusion
Mass
The periodic table of the elements
47. 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
Rebound hardness
Indentation hardness
Nonrenewable energy
Scratch hardness
48. Hard matter is ______ with soft matter
contrasted
freezing point
Mohs' scale of hardness
Law of reflection
49. 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
Develop a hypothesis
Renewable energy
Transfer of heat
Ratio of the length of its slope to its width
50. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
The formation of rust
Indentation hardness
Motion
First - class lever