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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. The resulting piece of paper or solution with water becomes a ________ (one of the oldest) - used to test materials for acidity
Steps in conducting a scientific investigation
Table salt
contrasted
pH indicator
2. Seems to travel in perfectly straight lines as rays - The direction of a ray changes at the interface between two transparent materials - like air and water
Light
Fluorescent lamp/fluorescent tube
Water
Wheel and axle
3. Composed of only one atom and cannot be separated into different substances except in some instances by radioactive decay or by nuclear reactions
Electricity
ratio of the length of the sloped surface to the height
Chemical elements
Higher boiling point
4. The branches of natural sciences that study the nature and properties of energy and non - living matter
Materials with high conductivity
Mohs' scale of hardness
Physical sciences
Screw
5. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts
First - class lever
proportional to its mass
Energy
Screw
6. 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
Hardness
magnetic field
Refraction
Electric circuit
7. The pitch of a sound depends on how fast the particles of a medium vibrate
contrasted
Pitch
Newton's second law of motion
Chemical elements
8. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects
south pole
equally
The six classical simple machines
Chemical changes
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
Wedge
Acceleration
Sublimination
Mechanical advantage
10. Energy can be neither created nor destroy
Law of conservation of energy
Amplitude
Electrons
Interval
11. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron
Transfer of heat
Simple machine
Current
The formation of rust
12. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)
Matter
Law of reflection
Compounds
Weight
13. Some of the light is reflected - the angle of reflection being equal to the...
Amplitude
number of protons
Carbon
Angle of incidence
14. 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
Third - class lever
Liquids
Electrons
15. 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
Rainbow
Inclined plane
Chemical changes
Mixture
16. For smooth surfaces - the angle at which light is incident on the surface equals the angle at which it is reflected
Law of reflection
Charles's Law
average atomic mass
Wheel and axle
17. Protons have a __________ electrical charge - and neutrons have no charge
positive
The formation of rust
average atomic mass
Litmus test
18. The number of waves produced in a given time
Inclined plane
Frequency
Test experiment - Step 1 - Select the materials
Matter
19. Also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism
Electric current
intermediate
Efficiently
Newton's second law of motion
20. The burning of coal also contributes to the formation of...
pH
pH indicator
Newton's third law of motion
Acid rain
21. 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
Kinetic and potential energy
chemical symbol
groups or families
intermediate
22. 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
Independent variable (manipulated variable)
Carbon dioxide and methane
Chemical reactions
23. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)
Helium
Temperature conversions
Forms of energy
Violet
24. 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
Carbon dioxide and methane
Frequency
Gravitation
groups or families
25. 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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26. 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
Rainbow
presence
Test experiment - Step 2 - Set up the procedure
Steps in conducting a scientific investigation
27. For every action (applied force) - there is an equal and opposite reaction
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28. A degree on the Fahrenheit scale is 1/180th of the interval between the __________ and boiling point
Hydrogen
positive
freezing point
Frequency
29. 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
number of protons
Gravity
Transfer of heat
Density
30. 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
Heat conduction/Thermal conduction
positive
Solution
Fluorescent lamp/fluorescent tube
31. 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
Dependent variable (responding variable)
Transfer of heat
Solids
groups or families
32. 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
Materials with high conductivity
Energy
Materials with poor conductivity
Interval
33. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs
The formation of rust
Nuclear fission
number of protons
Wedge
34. 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
Inclined plane
Angle of refraction
Pulley/block
Electric circuit
35. 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
Hardness
Refraction
Simple machine
Pulley/block
36. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel
Electric current
Energy
Hardness
Third - class lever
37. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration
Simple machine
Motion
Nuclear fusion
Oxygen
38. 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
pressure and temperature
Heat conduction/Thermal conduction
Nuclear fission
Electrons
39. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)
Measurement
Wheel and axle
Acceleration
Materials with high conductivity
40. 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
Light
Acid rain
Screw
Newton's first law of motion
41. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions
Hardness
Litmus test
Electric current
Temperature conversions
42. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)
Reflection
Fahrenheit (
Acceleration
Simple machine
43. 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
Table salt
Refractive index
Law of reflection
Solution
44. 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
Velocity
Uranium
pH
117
45. The beginning of scientific wisdom - The physicist's first reaction to a new idea is to ask: Can it be measured? Can I describe it with numbers?
Motion
Electrons
Measurement
Nuclear fusion
46. Scratch hardness - indentation hardness - and rebound hardness
Nuclear fission
Hydrogen
Three principal operational definitions of hardness
Chemical elements
47. 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
Velocity
chemical symbol
Law of reflection
48. 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
Screw
proportional to its mass
Draw conclusion
Gases
49. 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
Steps in conducting a scientific investigation
contrasted
Fahrenheit (
Test experiment - Step 3
50. Symbol: H Protons: 1 Neutrons: 0 Mass: 1
First - class lever
Three states of matter
Hydrogen
Velocity