Term
| what are the five steps of the scientific method? |
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Definition
1: find a problem or something unknown
2:make a hypothesis
3: make predictions about your hypothesis
4: conduct expirements to test your hypothesis
5: devise a theory |
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Term
| what are the metric units? |
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Definition
length- meter
weight-newton
mass-grams
time-seconds
volume-liter
temperature-celsius degrees |
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Term
| what are the metric prefixes? |
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Definition
Trillion 1,ooo,ooo,ooo,ooo Tera
Billion 1,ooo,ooo,ooo Giga
Million 1,ooo,ooo Mega
Thousand 1,ooo Kilo
Hundred 1oo Hecto
Ten 1o Deca
0 0 0
Tenth o.1 deci
Hundredth o.o1 centi
Thousandth o.oo1 milli
Millionth o.ooooo1 micro
billionth o.oooooooo1 nano
trillionth o.ooooooooooo1 pico |
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Term
| What are the equations for speed, distance, and time? |
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Definition
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Term
| What can velocity be defined as? |
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Definition
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Term
| to find resultant velocity, _________ velocity in the same direction and ___________ velocities in opposite directions. |
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Definition
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Term
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Definition
| the tendency of objects to resist a change in motion |
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Term
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Definition
| based on the mass of the object |
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Term
| what are the equations for Newton's second law of motion? |
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Definition
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Term
| Is mass directly or indirectly proportional to weight? |
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Definition
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Term
| What are the 2 definitions of mass? |
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Definition
1: the quantity of matter in an object
2: a measure of an object's inertia |
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Term
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Definition
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Term
| when determining the net force acting on an an object, always _____ forces in the same direction, and _________forces acting in opposite directions. |
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Definition
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Term
| what is newton's third law? |
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Definition
| "whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first |
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Term
| what are the forces described in newton's third law called? |
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Definition
| action and reaction forces |
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Term
| What are the 2 differences between momentum and inertia? |
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Definition
| momentum applies to moving objects, inertia applies to moving objects and resting objects. Also, they have different units. |
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Term
| How much work has been done on an object that moved but ends up where it started? |
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Definition
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Term
| What is the Law of Conservation of Energy? |
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Definition
| Energy can not be created or destroyed |
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Term
| What is the wavelength of a wave? |
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Definition
| the distance between one crest and another crest or between one trough and another trough |
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Term
| What is the range of human hearing? |
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Definition
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Term
| What is the speed of light in air? |
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Definition
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Term
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Definition
| it is when the frequency of force vibrations on an object matches its natural frequency, a dramatic increase of amplitude occurs, this is resonance. |
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Term
| what is the difference between loudness and intensity? |
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Definition
| loudness is perceived and intesity can be measured |
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Term
| describe the attractions of like and unlike charges. |
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Definition
| like charges repel and unlike charges attract |
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Term
| what are the equations for Ohm's Law? |
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Definition
current=voltage/resistane
voltage=current x resitance
resictance=voltage/current |
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Term
| why do most materials not have magnetic properties? |
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Definition
| because most material's particles are not aligned |
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Term
| what is magnetic force caused by? |
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Definition
| the motion of charged particles |
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Term
| What are the fossil fuels? |
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Definition
| coal, oil, and natural gas |
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Term
| What is the difference between nuclear fission and nuclear fusion? |
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Definition
| nuclear fission is when the nucleus is split and nuclear fusion is when the nucleus is joined with another nucleus (from a different atom) |
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Term
| What is used in modern power plants? |
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Definition
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Term
| What are some sources of light? |
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Definition
| light bulb filament, the sun, glowing gases |
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Term
| What percentage of the electromagnetic spectrum is made of visible light? |
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Definition
| one millionth of a percent |
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Term
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Definition
| a physiological expirence that may differ ffrom person to person |
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Term
| how many different colors are in the color spectrum? |
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Definition
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Term
| The groups of colors in the visible spectrum from lowest to highest are... |
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Definition
| red, orange, yellow, green, blue, indigo, violet |
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Term
| What light contains all of the visible frequencies? |
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Definition
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Term
| What are the additive primary colors? |
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Definition
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