PHYSICS MIDDLE SCHOOL

The amount of work done to produce a sound determines which property of sound waves? A. frequency
B. wavelength
C. pitch
D. amplitude

Answers

Answer 1
Answer:

Intensity of sound is defined by

So here we can say work done by us is stored in the form of energy of sound and that energy can be compared by the intensity of sound

So if we will do more work then the sound will have more energy and hence it will have more intensity

Now we know that intensity of sound is given as

so more is the intensity then more work which means the amplitude will be more

So answer will be

D. amplitude

Answer 2
Answer: The answer is D) Amplitude

Related Questions

MIDDLE SCHOOL

If an object has a mass of 26 g on earth would its mass be less than 26 g on the moon

Answers

Answer:

No

Explanation:

No matter where an object is, its mass will stay the same, but its weight might change depending on gravity.

MIDDLE SCHOOL

it takes a school bus full of kids longer to stop than it does a small car with a single passenger. which law is this an example o?

Answers

Newton´s second law of motion

HIGH SCHOOL

How did J. J. Thomson’s discovery affect the model of the atom? A. It proposed that the positive charge was concentrated in the nucleus.

B. It proposed that electrons orbit the nucleus like the planets in the solar system.

C. It proposed the idea that electrons were mobile in the atom.

D. It proposed that atoms are mostly composed of empty space.

Answers

I believe the answer to this is C. :D

Answer:

Based on the K12 test: C. It proposed the idea that electrons were mobile in the atom. is the correct answer.

Explanation:

HIGH SCHOOL

Challenge: a hammer is dropped on planet x. if the hammer has a mass of 3 kg and a weight of 9 n, what is the gravitational acceleration of planet x and is it more or less than that of earth?

Answers

Answer:

Gravitational acceleration at planet x will be

Acceleration due to gravity on planet x will be less than acceleration due to gravity on earth

Explanation:

We have given mass of the hammer m = 3 kg

And weight of the hammer at planet x = 9 N

We know that weight of the body is given by

So gravitational acceleration at planet x will be

As we know that acceleration due to gravity on earth is

So acceleration due to gravity on planet x will be less than acceleration due to gravity on earth

To know that we would need to know how long it takes the hammer to drop.
HIGH SCHOOL

After France fell to the Axis powers in 1940, what percentage of the country was placed under German control? A. 25 percent
B. 50 percent
C. 60 percent
D. 100 percent

Answers

Correct answer choice is:

B. 50 percent

Explanation:

France Capitulates to Nazi Germany. On June 22, 1940, the French state approved a cease-fire with Nazi Germany just six weeks after the Nazis began their incursion of Western Europe.

Paris began preparing for combat in September 1939, when Nazi Germany overran Poland, but the combat appeared far beyond until May 10, 1940, when the Germans invaded France and immediately took the French troops. The French administration left Paris on June 10, and the Germans controlled the capital on June 14.

25 % of the population was in controlled by Germany after France fell to the Axis power. Germany ruled over France and made things that caused the French people to create a revolution. This was one of the greatest revolution so far in the history where the French people united just to get their freedom back.
HIGH SCHOOL

If a small-diameter open glass tube is partially immersed in a vessel containing mercury, the surface of the mercury inside the tube will be?

Answers

The question comes along these answer choices:

A. lower than the mercury in the vessel, and shaped like the outside of an umbrella.

B. higher than the mercury in the vessel, and shaped like the outside of an umbrella.

C. lower than the mercury in the vessel, and shaped like the inside of a bowl.

D. higher than the mercury in the vessel, and shaped like the inside of a bowl.

Answer: option A. lower than the mercury in the vessel, and shaped like the outside of an umbrella.

Explanation:

That is what is called convex meniscus and is due to the high cohesion forces of mercury.

There are two opposing forces that take place in the formation of the meniscus: the cohesion, which is the attraction of the liquid mercury atoms among each other, and the adhesion, which is the attraction of mercury atoms to the molecules on the glass tube's walls (polar molecules of the glass tube).

Since, in mercury the cohesive forces (between the mercury atoms) are stronger than the adhesive forces (between mercury atoms and the glass tube's molecules), the cohesion overcomes the adhesion, meaining that the atoms try to remain together and, therefore, form the convex meniscus. Since the glass tube is upside down, the surface of the mercury inside of tube will be lower than the mercury in the vessel, and shaped like the outside of an umbrella.

            Mercury is a heavy, d-block and silvery chemical element whose chemical symbol is Hg (hydrargyrum)  is commonly known to many as quicksilver. It is considered as the only metallic element in the form of liquid at standard temperature and pressure. Mercury is used in different devices like barometers, thermometers and manometers.  In chemistry, there are many experimentations conducted to describe the behavior and characteristics of the said element. One of which is stated below.   If a small-diameter open glass tube is partially immersed in a vessel containing mercury, the surface of the mercury inside the tube will be lower than the mercury in the vessel and shaped like the outside of an umbrella.  



MIDDLE SCHOOL

Place a ping pong ball in a water bath. Drop one drop of water in the bath and describe the motion of the ball. Is the wave motion transverse or longitudinal?

Answers

Answer:

Its wave motion is transverse.

Explanation:

On the surface of water whenever a mass is dropped leading to a periodic oscillation of the surface molecules form a transverse wave on the surface of the water i.e. the oscillations occur in a direction perpendicular to the direction of propagation of waves.

In the case of a longitudinal wave, the direction of propagation is parallel to the direction of oscillations.  

On the surface of the water, the patterns of disturbance are formed due to the surface tension of the water.

MIDDLE SCHOOL

,how do charged objects react???quiet urgent

Answers

Any charged object can exert the force upon other objects ... i think tell me if im right
Any charged subject can exert the force upon other subjects...I think...I hope this helped you...And I hope you have a good day!!! :) :) :) :) :) :)
MIDDLE SCHOOL

Katie ran 200 meters in 32 seconds.what was katies speed

Answers

Katie's speed was 6.25 meters per second.
Katie's speed was 22.5 km per hour.
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