PHYSICS MIDDLE SCHOOL

What might cause a ballon blown up at a low altitude to burst if it was taken to a higher altitude?

Answers

Answer 1
Answer: if a balloon is high up it will pop because pressure here think of it like this when you swim and go under water lets say 12ft you will notice that your head will hurt and it will take your oxygen away faster just like a balloon it has air in it so when it goes to high it will pop because its made of weak material so it will pop. and a low balloon because it will hit things and like i said balloons pop easy it could also get soft rubber because it is not moving and if like the sun was on it than it would pop as well i really hope this helped you      
Answer 2
Answer: When you are at a low altitude their is more pressure. If you are at a high altitude, there would be less pressure, making it pop

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Why does the speed of sound depend on air temperature?

Answers

A certain temperature can be thick so the speed may take longer to get to it's destination.
The speed of sound is dependent on how close together the molecules of the transmitting medium is.

Explain why a basketball doesn’t bounce the same height each time you drop it.

Answers

The basketball do not bounce back to the same height after each drop due to the fact of loss of kinetic energy.

Explanation:

When the basketball or any ball is dropped off from a certain height it falls down under the influence of gravity with the kinetic energy which has been transferred to the ball with hand by dribble.

When the basketball hits the ground with the kinetic energy, it loses some of the energy to the ground and then with the action reaction pair with the ground, is bounced back but with lower energy to a lower height.

Hi!

So if you drop a basketball from a higher height, it has more time to gather more energy, which it then forces against the ground and causes the ball to bounce.

Hope this helps! Sorry I didn't really use any technical terms!

15 POINTS! What are some differences and similarities between Electromagnetic and Mechanical waves?

Answers

Elecromagnetic waves can travel through a vacuum, but a mechanical wave cannot.Mechanical waves can only exist in a medium, such as air or water. Electromagneticwaves behave like waves and particles, but mechanical waves only behavelike waves.

A train travels 98 kilometers in 1 hours, and then 78 kilometers in 3 hours. what is its average speed?this is a fill in the blank question. thanks!

Answers

The average speed over the total four hour interval is

\frac{98\,\mathrm{km}+78\,\mathrm{km}}{4\,\mathrm h}=31\,\frac{\mathrm{km}}{\mathrm h}

Waves that move matter back and forth are called                 a.transverse waves  b.longitudinal wave     c. Medium wave

Answers

Waves that move matter back and forth are called                 a.transverse waves  b.longitudinal wave     c. Medium wave
The answer is choice B
Longitudinal wave

What are some similarities between heat and temperature?

Answers

Answer
Heat is a form of energy while temperature is the measure or degree of coldness or hotness of a substance, place or something.
The similarities between heat and temperature are:
1. Heat causes the temperatures to raise. This means that it is the heat energy that causes temperatures to change.
2. Both heat and temperatures can be measured by specific units. Heat is measured in joules while temperature is measured in kelvin.  

By definition, we have:

Heat:

Energy that is manifested by an increase in temperature and comes from the transformation of other energies; is originated by the vibratory movements of the atoms and the molecules that form the bodies

Temperature:

The temperature is a magnitude referred to the common notions of heat measurable by a thermometer. In physics, it is defined as a scalar quantity related to the internal energy of a thermodynamic system

Some similarities are:

1) The more heat there is, the higher the temperature.

2) The less heat there is, the lower the temperature.

3) Mathematically the heat and the temperature difference between two points are proportional.
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