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Science and Technology
Page 10
Questions (7,257)
How is a turbine used in generating electrical energy?
a. The armature of the generator turns the turbine. b. The turbine turns
1 answer
asked by
christinaqz
83 views
Which is a curved piece of glass or other transparent material used to refract light?
a. a concave lens b. an optical fiber c. a
1 answer
asked by
christinaqz
78 views
How does a refracting telescope change the image seen by a scientist?
a. It uses two mirrors and a convex lens to make small
1 answer
asked by
christinaqz
103 views
How are incandescent and compact fluorescent light bulbs different? Which one gets hot when it is in use?
4 answers
asked by
oh em gee wow
74 views
What will most likely be the effect on the number of coats in the coat check if the temperature decreases? (4 points)
Number of
4 answers
asked by
Joe Mamma
66 views
What is your opinion about energy and the future? What should energy use look like in the year 2100? What types of energy should
2 answers
asked anonymously
86 views
Locomotion
A)the back side; toward the back (or top) B)the rear; toward the rear C)the front side; toward the front D)two-sided
1 answer
asked by
fe
81 views
What is another name for an object that uses up the electrical energy in a circuit?
a Battery b Source c Wire d Load
1 answer
asked by
T
70 views
An electromagnet is the most powerful type of magnet there is. It is a magnet with a current running through it that can be
1 answer
asked by
ray
272 views
Which purpose does a light bulb serve in a circuit?
* 1 point A. Cell B. Switch C. Load
1 answer
asked by
Anonymous
90 views
What is needed to build a laser?
two fully reflective mirrors two partially reflective mirrors a partially reflective mirror and
1 answer
asked by
christinaqz
92 views
Why might the US military be interested in making a vehicle fuel from algae? * 1 point
A. Algae is a non-renewable resource B.
4 answers
asked by
kokosovc
111 views
Why is there no machine which is 100% efficient in the whole world
1 answer
asked by
Darlene
76 views
Examples of liquid materials
1 answer
asked by
Rocky Adzadi
78 views
Scientists have been able to develop a nuclear fusion plant to generate energy.
True False
2 answers
asked by
Jalen Warren
244 views
Which action is an example of genetic modification (creating GMOs)?
A raising animals via animal husbandry for food purposes B
1 answer
asked anonymously
120 views
Taylor says he likes using simple machines because they do his work for him. Alicia says that simple machines only help do the
1 answer
asked by
no name
121 views
Match the vocabulary word to its definition.
Column A Column A 1. conductors: conductors 2. insulators: insulators 3. resistance:
1 answer
asked by
kali
137 views
What is the relationship between voltage and current (assuming the resistance stays the same)?
a If the voltage decreases, the
1 answer
asked by
kali
113 views
Match the property to its unit
Column A 1. Current: Current 2. Resistance: Resistance 3. Voltage: Voltage Column B a.Ohms b.Volts
1 answer
asked by
kali
102 views
Resistance
1 answer
asked anonymously
59 views
In order to measure the transfer of thermal energy from one temperature body to another, what device would be most useful?
a
1 answer
asked by
no name
72 views
Different colors absorb and reflect different amounts of sunlight. Which color would make the most sense to use to paint a house
2 answers
asked by
...
95 views
Airport security uses electromagnetic waves to see items inside of luggage without having to open the bags. Which type of
1 answer
asked by
...
119 views
Tesla
15 answers
asked by
BOT
81 views
Look at the table below that contains designs for different electromagnets. Which design would have the strongest magnetic
15 answers
asked by
SomeLazyCat
140 views
pros and cons of moderns space exploration
1 answer
asked anonymously
68 views
benefita of space exploration on the moon
1 answer
asked anonymously
71 views
What is the process of using chemicals, heat, or force to change the internal structure of an object or material?(1 point)
formin
1 answer
asked by
bobby brown
62 views
what type of structure would house the circuit most effectively?explain the structure
4 answers
asked by
linge
716 views
Which technology has most improved our ability to analyze data received from outer space?(1 point)
planetary rovers computers
7 answers
asked by
Friend
2,624 views
A portable CD player that draws 160 milliamperes of current is powered by Ni-Cd rechargable batteries. Compute the mass of Cd
4 answers
asked by
luna
1,383 views
The United States spends over $20 billion a year on space exploration through NASA. Do you think that this has been worth the
6 answers
asked by
Ash
3,169 views
Why do the legs on a head frame always slope toward the winch?
4 answers
asked by
Promise
1,351 views
In a car accidnet involving a sports car, skid marks as long as 290 m were left by the car as it decelearted to a complete stop.
4 answers
asked by
Abrahm
2,079 views
What are some similarities between humans and machines?
In what ways are humans and machines different? What are some conflicts
7 answers
asked by
Anonymous
2,765 views
Design and explain the best way to separate a mixture of beads sand iron fillings salt and water. Filtration sieving evaporation
4 answers
asked by
Siyamkelwe
517 views
What is a primary energy source? Explain how it differs from a secondary source.
4 answers
asked by
I need helppppp
1,088 views
a metal ball is just able to pass through a metal ring .is this true?
2 answers
asked by
lisa
485 views
Converting sunlight to electricity with solar cells has an efficiency of 15%. It's possible to achieve a higher efficiency
5 answers
asked by
Anonymous
4,691 views
Which of the following two telescopes has a better angular resolution? 1) the Hubble Space Telescope (2.4 meter aperture) at
5 answers
asked by
Tsambikos
1,765 views
All these are devices that uses
electromagnet in its mode of operation EXCEPT____ A. Cell phone B. Transformers C. Microphone D.
2 answers
asked anonymously
81 views
A conductor has a diameter of
1.00mm and length 2.00m the resistance of the material is 0.1Ω, its resistivity is___ A. 3.93 x
2 answers
asked anonymously
84 views
when the velocity of an object travels in one direction then the other, how its graph will look like
anonymous
2 answers
asked anonymously
46 views
explain why you need to use sieving to separate beads,sand,iron filings ,salt and water
2 answers
asked by
mandy
112 views
7. Complete the following statement. In Multisim, The Bode Plotter tool is used to determine….
a) The ac voltages b) The input
1 answer
asked by
Anonymous
87 views
What type of simple machine is crossbar?
7 answers
asked by
Zara
117 views
Scientists believe there is a link between ambient temperature and damage to a head gasket on a car. Using the provided
6 answers
asked by
HARRY STYLES:) TPWK
197 views
How do electromagnets cause a maglev train to levitate above the track? (1 point) Magnets in the track and magnets in the bottom
1 answer
asked by
roar
212 views
Fusion
1 answer
asked anonymously
59 views
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