Physics Middle School

Which of these devices does NOT contain a magnet or electromagnet?
a doorbell
an electric motor
a light bulb
a telephone

Answers

Answer 1
A light bulb don’t have magnet
Answer 2
C. A lightbulb

This is because a light bulb uses a filament to send a current to turns electricity into light. Because filaments are mostly made of tungsten, the resistance of the filament gets so hot that it heats the light bulb.

This process does not need a magnet or electromagnet like the doorbell, electric motor, and telephones need magnets.

Related Questions

no links i need help please Material that allows light to pass through it is called _____________________.
A. translucent B. transparent
C. polarized D. opaque

_____ 8. Light that is absorbed is converted to __________________ radiation.
A. radio wave B. ultraviolet
C. light D. infrared

Answers

the first one is transparent, and the next one is infrared

hope this helps !

The first one is B.(transparent).. because transparent materials allow high amount of light to pass through them.. and the second one is C. (Infrared)

What processes were involved in the formation of the model? How is the model similar to the real sedimentary sample? How is the model different from the real sedimentary sample?

Answers

Answer:

1. sediment layering and compacting on top of each other and solidifying

2. sediment layering and compacting (not as much) on top of each other and solidifying, just not as much

Explanation:

hope this helps! :))

BRainliest if correct

Light waves bend when they pass from one medium to a different medium because the speed of the wave changes.


True
or
False

Answers

Answer:

True

the reason why I chose tire is because when you put a straw in a cup of water the water refract or bend

True because the light waves do bend when they pass from one medium to a different medium because the speed of the wave change

Can you help with this please

Answers

1 every light in your household is parallel this is useful bc as one goes out not all do as they would in a series circuit 2 plastic and glass they are common bc it does not let electricity travel from one place to another outside of it
i haven’t learned this yet sorry

PEASE HELP ASAP They need to be whole numbers
50N = _____________ acceleration (m/s^2)
100N = _____________ acceleration (m/s^2)
150N = _____________ acceleration (m/s^2)
200N = _____________ acceleration (m/s^2)

Answers

Answer:

50 Kilograms Force (kgf) = 50 Kilograms Force (kgf)

100 Kilograms Force (kgf) = 100 Kilograms Force (kgf)

150 Kilograms Force (kgf) = 150 Kilograms Force (kgf)

200 Kilograms Force (kgf) = 200 Kilograms Force (kgf)

Explanation:

Answer:

50n = 10 ms

100n = 20 ms

150n = 30 ms

200n = 40 ms

Explanation: i might be wrong though but im probably 60% or 80% mainly bc my mood is bad so i do lower

best exercises for these topics.
(have the amount of exercises, have 4 exercises for each.)

Answers

Answer:

what is the question?

Explanation:

i dont understand

Answer:

follow this routine .

Explanation:

because it can build up your body fast and effectively so

NO LInks Someone please help ans give me a real answer Identify the behavior of light shown by each diagram below and describe how the light behaves.

Answers

Answer:

what there is now way there is answers

Explanation:

1 is refraction the light is bending 2 is reflection the light is bouncing off 3 is transparent the light passes through it 4 is absorbed the light is absorbed by the surface

How are systems different from industries? Use an example to support your answer.

Answers

An industrial system consists of inputs

Where did the carbon in all living things come from?

(A) It was made in stars that lived before the solar system formed.
(B) It was made in the formation of the solar system.
(C) It was made during the big bang.
(D) It was produced by cyanobacteria.

Answers

D (it was produced by cyanobacteria)!!!
d is the correct answer hope this helps! :)

NO LInks Identify the behavior of light shown by each diagram below and describe how the light behaves.

Answers

Answer:

I cant see the image type the question

Explanation:

Which of the following is true of elements?
A.
They are always composed of only two types of matter.
B.
They are composed of only one type of matter.
C.
They are not composed of any type of matter.
D.
They are composed of two or more types of matter

Answers

d. they are composed of two or more types of matter
The answer is in fact D

Which equation below is the correct equation for cellular respiration?

Answers

Answer:

2 or 3

Explanation:

2 or 3 look exactly the same to me.

Answer:

The first one sunlight + water + carbon dioxide > glucose + oxygen

Explanation:

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