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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. 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
Energy
Chemical elements
Materials with high conductivity
Solution
2. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density
presence
Physical properties
Amplitude
The formation of rust
3. 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
nucleus
Carbon
Draw conclusion
Current
4. 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
Pitch
Steps in conducting a scientific investigation
Nuclear fusion
5. Salt has a ___________ than water and therefore doesn't evaporate with the water
Nuclear energy
Higher boiling point
Frequency
The periodic table of the elements
6. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
Weight
Density
nucleus
proportional to its mass
7. Protons have a __________ electrical charge - and neutrons have no charge
Metals in the periodic table
Law of conservation of energy
Charles's Law
positive
8. Symbol: C Protons: 6 Neutrons: 6 Mass: 12
Carbon
Three states of matter
Test experiment - Step 2 - Set up the procedure
Steps in conducting a scientific investigation
9. 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
pH indicator
Transfer of heat
Electric circuit
Nuclear energy
10. The shortest wavelength; red is the longest
Pitch
The formation of rust
Violet
Non - metals in the periodic table
11. 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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12. 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
Test experiment - Step 1 - Select the materials
Steps in conducting a scientific investigation
Thermal radiation
Screw
13. Also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism
Test experiment - Step 3
Electric current
number of protons
Physical properties
14. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions
Litmus test
Incandescent light bulb
ratio of the length of the sloped surface to the height
Simple machine
15. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment
Motion
Temperature conversions
Draw conclusion
Gases
16. 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
Develop a hypothesis
Lever
Inclined plane
Atomic number
17. 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
Ratio of the length of its slope to its width
Incandescent light bulb
Develop a hypothesis
Non - metals in the periodic table
18. 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
Fahrenheit (
Heat conduction/Thermal conduction
Electrons
Water
19. 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 -
Forms of energy
Nuclear energy
pH
Renewable energy
20. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)
Acceleration
Angle of incidence
Table salt
Acid rain
21. Obtained by two different means - fission and fusion
Nuclear energy
Motion
Simple machine
Compounds
22. The pitch of a sound depends on how fast the particles of a medium vibrate
Density
Amplitude
Violet
Pitch
23. 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
Refraction
Acceleration
Atomic number
Wheel and axle
24. 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
Efficiently
Density
Test experiment - Step 1 - Select the materials
Mechanical advantage
25. 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
Electric circuit
Kinetic and potential energy
Test experiment - Step 3
number of protons
26. Formed by the chemical combination of two or more elements in a fixed ratio Example: water
Materials with high conductivity
Physical properties
Draw conclusion
Compounds
27. 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
contrasted
Materials with poor conductivity
Iron
Second - class lever
28. The top of a wave's 'hill'
Motion
Higher boiling point
Crest
Sublimination
29. 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
Higher boiling point
Physical sciences
The periodic table of the elements
Nonrenewable energy
30. The burning of coal also contributes to the formation of...
Thermal radiation
Test experiment - Step 3
Acid rain
Newton's third law of motion
31. Symbol: Fe Protons: 26 Neutrons: 30 Mass 56
Iron
Fluorescent lamp/fluorescent tube
number of protons
Carbon
32. 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
Measurement
Violet
Nuclear fission
Refractive index
33. The number of waves produced in a given time
Electrons
pH
Wavelength
Frequency
34. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
Three states of matter
Motion
proportional to its mass
Hardness
35. Major greenhouse gases
Carbon dioxide and methane
Water
Charles's Law
Nuclear energy
36. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Pulley/block
Newton's second law of motion
Third - class lever
ratio of the length of the sloped surface to the height
37. 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
Fahrenheit (
Distillation
Test experiment - Step 3
Hardness
38. 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
Static electricity
Third - class lever
Thermal radiation
Non - metals in the periodic table
39. 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
Mechanical advantage
Independent variable (manipulated variable)
Physical sciences
Acceleration
40. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
Nonrenewable energy
south pole
Gravitation
Velocity
41. A compressed gas pushes out __________ in all directions
equally
Static electricity
magnetic field
Newton's first law of motion
42. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)
Simple machine
Weight
Thermal radiation
Lever
43. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle
Chemical reactions
Magnetism
Electricity
The six classical simple machines
44. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms
positive
Energy
Distillation
Atomic number
45. 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
Third - class lever
Three principal operational definitions of hardness
Mass
Draw conclusion
46. Energy can be neither created nor destroy
Angle of incidence
pressure and temperature
Law of conservation of energy
Carbon dioxide and methane
47. Some gases can transition directly to a solid Example: the formation of frost
Litmus
Dependent variable (responding variable)
Deposition
Measurement
48. 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
Gases
Compounds
Gravitation
Solids
49. Elements are assigned atomic numbers equal to the __________ in the nucleus of their atoms - Each element has a different number of protons
ratio of the length of the sloped surface to the height
Thermal radiation
number of protons
nucleus
50. 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
Wedge
Screw
Metals in the periodic table
Distillation