1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
saul85 [17]
3 years ago
9

Explain all the energy conversions that take place while using a cell phone.

Physics
1 answer:
zhuklara [117]3 years ago
8 0

Answer:

#See solution for details.

Explanation:

-Chemical energy in the battery is converted into Electrical Energy which powers up the phone.

-The electrical energy is then converted to Light Energy when the phone is powered up, this is seen through the lightening up of the phone screen.

-During phone calls, the electrical energy is further converted to Sound Energy to allow for transmission of audio signals.

- As we continue to use the phone, the electrical energy is converted into heat energy which we feel due to an overheating battery.

-The cycle then repeats itself again whenever a phone is charged.

You might be interested in
How does the law of conservation apply to Earth's Energy Budget?
Molodets [167]

Answer:

The balance between incoming energy from the sun and outgoing energy from Earth ultimately drives our climate. This energy balance is governed by the first law of thermodynamics, also known as the law of conservation of energy.

4 0
1 year ago
Define second class lever​
Aleks04 [339]

Answer:

Please find detailed explanation of second class levers below

Explanation:

Levers are one of the classes of machine that possesses three levels namely: first class, second class and third claas. A second class lever is the level of levers in which the load (L) is in between the pivot (F) and the effort (E).

Examples of second class levers include; wheelbarrow, a bottle opener etc. In the bottle opener for example, the bottle lid (load) is in between the pivot of the opener and the hand opening it (effort).

6 0
2 years ago
What is the characteristic that allows an object to have kinetic energy?
Shtirlitz [24]
Kinetic energy is movement, thus movement would be a characteristic that allows an object to have kinetic energy
6 0
2 years ago
During a demonstration of the gravitational force on falling objects to her class, Sarah drops an 11 lb. bowling ball from the t
leonid [27]

The instant it was dropped, the ball had zero speed.

After falling for 1 second, its speed was 9.8 m/s straight down (gravity).

Its AVERAGE speed for that 1 second was (1/2) (0 + 9.8) = 4.9 m/s.

Falling for 1 second at an average speed of 4.9 m/s, is covered <em>4.9 meters</em>.

ANYTHING you drop does that, if air resistance doesn't hold it back.

7 0
2 years ago
Read 2 more answers
Waves travel at different speeds when they travel in different_________.
Gnesinka [82]
I am sure it is frequency
8 0
3 years ago
Other questions:
  • A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s2 . what is the net external force on him?
    14·1 answer
  • How do you change time to kilograms?
    9·1 answer
  • After an oil spill in the ocean, what happens to bacteria that break down the oil?
    9·1 answer
  • how fast in revolutions per minute must a centrifuge rotate in order to subject the contents of a test tube (30cm) from the axis
    10·1 answer
  • Lidia plans an experimental investigation to see how the thickness of a lens affects the point where a beam of light is focused.
    8·1 answer
  • Look online for the growth of the trunk of a tree. Estimate how much time does it take for a water oak to grow one inch in diame
    5·1 answer
  • What is the weight of a 20 kg box on the Earth?<br> A) 2 N <br> B) 20 N<br> C) 200 N
    15·1 answer
  • What energy does a spillway produce?​
    6·2 answers
  • PLEASE HELP! I'LL GIVE BRAINLEST​
    8·1 answer
  • In motion pictures, what do you call the lens manipulation where the focus quickly changes from one subject to the next in a mot
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!