Which would be the most appropriate description of how energy is distributed when a torch is turned on?
A 70% light energy, 30% thermal energy
B 70% thermal energy, 30% electrical energy
C 65% light energy, 30% thermal energy
D 40% thermal energy, 55% light energy

1) Which of the following is a form of kinetic energy?
A Motion
B Chemical
C Elastic
D Nuclear

2) The energy we receive from the sun includes:
A electrical and sound energy.
B thermal and nuclear energy.
C electrical and light energy.
D thermal and light energy.

3) The petrol needed to make a car move is a form of:
A kinetic energy.
B chemical potential energy.
C thermal (heat) energy.
D elastic potential energy.
E gravitational potential energy.

4) When a bicycle skids to a stop, its kinetic energy is mostly transformed into:
A heat and sound.
B potential energy.
C sound energy.
D heat and light.

5) The faster an object moves:
A the more potential energy it has.
B the more kinetic energy it has.
C the faster its particles vibrate.
D the cooler it gets.

6) When you clap your hands, the kinetic energy is transformed into:
A heat and light.
B heat and potential energy.
C sound and heat.
D sound and elastic potential energy.






7) When you place a metal saucepan on the heating element of a stove, heat is transferred from the element to the saucepan by:
A reflection.
B convection.
C conduction.
D radiation.

8) Which of the following can be described as being luminous :
A Streetlights (turned on)
B A road sign
C The moon
D Water

9) In the burning of fireworks during New Year displays, chemical potential energy is converted into:
A heat, light and sound energy.
B light and sound energy.
C sound and heat energy.
D gravitational potential energy and light.

Answers

Answer 1

Answer:

Explanation:

1) A motion

2) C Electrical and light energy

3) A kinetic energy

4) A heat and sound

5)B the more kinetic energy it has

6)C sound and heat

ope all of them are correct


Related Questions

How does inertia relate to forces

Answers

Answer:

Even in space, objects have mass. And if they have mass, they have inertia. That is, an object in space resists changes in its state of motion. A force must be applied to set a stationary object in motion.

A ball is thrown 6m above the ground. Its total energy at that point is 12 J. What is the total energy of the ball at a halfway point of motion

Answers

Answer:

6J

Explanation:6J

Using the potential Energy formula;

Potential Energy = mass * acceleration due to gravity * height

If a ball is thrown 6m above the ground. Its total energy at that point is 12 J

Get the mass of the ball

12 = m * 9.8 * 6

m = 12/58.8

m = 0.204kg

The height of the ball halfway = 6/2 = 3m

Potential energy half way = mgh

Potential energy half way = 0.204 * 9.8 * 3

Potential energy half way = 6J

Step 1: –10 + 8x < 6x – 4
Step 2: –10 < –2x – 4
Step 3: –6 < –2x
Step 4: ________

What is the final step in solving the inequality –2(5 – 4x) < 6x – 4?

x < –3
x > –3
x < 3
x > 3

Answers

The third one I think

What property of a wave increases as the wave's energy increases?
frequency
pitch
trough
amplitude

Answers

Answer:

Frequency.

Explanation:

More energy = shorter wavelength = greater frequency

A horse accelerates from rest at 3 m/s2. How long does it take to reach a speed of 12 m/s?

Answers

Answer:

it will take 4.0 seconds

A woman runs 4.5 miles south and 3,7 miles east. What is the angle of the displacement of the resultant?

Answers

Answer:

51°

Explanation:

Please see attached photo for explanation.

In the diagram, R is the resultant and θ is the angle of the displacement of the resultant.

The value of θ can be obtained as follow:

Angle θ =?

Opposite = 4.5 miles

Adjacent = 3.7 miles

Using Tan ratio:

Tan θ = Opposite / Adjacent

Tan θ = 4.5 / 3.7

Tan θ = 1.2162

Take the inverse of Tan

θ = Tan¯¹ 1.2162

θ ≈ 51°

Thus, the angle of the displacement of the resultant is 51°

In order to have an airplane ascend, it needs to have more___
than weight. *
Drag
Weight
Lift
Thrust

Answers

Answer:

drag weight lift thrust

Ralston had lots of spicy and oily food which triggered heartburn. The doctor prescribed
him Milk of Magnesia.
a. Why did the doctor prescribe milk of magnesia?
b. What is the chemical name of milk of magnesia?

Answers

Answer:

A.) The doctor decided to prescribe milk of magnesia because of the mineral Magnesium. Magnesium helps to reduce stomach acid and increases the water in the intestines which helps induce motility in the intestines. Heartburn is caused by stomach acids traveling up into your esophagus which causes that feeling of your heart burning. Milk of magnesia will help soothe this.

B.) The chemical name of milk of magnesia is magnesium hydroxide.

Explanation:

The chemical name of the milk of magnesia is magnesium hydroxide.

An antacid is any substance that is taken to decrease or neutralize the acidity of the gastro intestinal tract. We must note that the gastrointestinal tract is natural acidic.

However, hyperacidity of the gastrointestinal tract could lead to heartburn. This acidity is neutralized using an antacid such as milk of magnesia. The chemical name of the milk of magnesia is magnesium hydroxide.

Learn more about antacid: https://brainly.com/question/1301963

If the amount of force from the group on the left was 235 N, what is the amount of force from the group on the right

Answers

Answer:

(F = ma ) Newton's second law states that force is proportional to what is required for an object of constant mass to change its velocity. This is equal to that object's mass multiplied by its acceleration.

Brainliest if right.

Show your work: A wolf chasing an elk. The wolf has a mass of 100 kg and is running with a velocity of 16 m/s
to the right. What is the wolf's momentum?
The elk has a mass of 180 kg. What does the elk's speed have to be for it to have the same momentum as the
wolf?

Answers

Answer:

Explanation:

wolfs momentum is p=mv

so its 100 x 16 = 1600kg m/s

the elks velocity is 1600 = 180 x V

1600/180 = 8.88 m/s

A girl travels 50 m East in 10-minutes and later 100m north in 15 minutes. what is her total displacement?​

Answers

Displacment tot= radical 50^2 + 100^2
= 5radical 5 or around 111.8

Answer:

111.80 meters

Explanation:

Displacement = A^2 + B^2

50^2 + 100^2 = 12 500 (route the answer )

S= 111.80 meters

tips for achieving good grades at science exam? i would be very thankful for you!!​

Answers

Make sure you study, and ask ur teacher for extra recourses

how could you weaken the force of gravity between cars and the Earth?
**I WILL MARK BRAINLEST**​

Answers

Answer:

The answer you have selected is correct.

Explanation:

Increase radius, force of gravity decreases

Way back in the ­­­­­­­­­­­­_____________, there lived a man named Isaac Newton who really loved physics.
Group of answer choices

15th to 16th century

17th to 18th century

20th to 21st century

1st to 2nd century

Answers

Answer:

i can't click the answer bottom but the answer is "17th to 18th century" i hope this helps

Si lo deseas cada estudiante puede hablar algún otro aspecto de la pandemia que les parezca importante e interesante

Answers

Answer:

Give them assignment on the pandemic.

Explanation:

If you wish, each student can talk about some other aspect of the pandemic that seems important and interesting then you have to give them the assignment of presentation and give reward on them. The students will definitely make the presentation on other aspects of the pandemic and when they present it in the class it enhance the knowledge of other students as well.

"Influence" between bodies is reduced as the bodies are: brought closer moved farther apart increased in charge held stationary

Answers

Answer:

moved farther apart

Explanation:

Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.

Additionally, the gravity of earth makes it possible for all physical objects to possess weight.

"Influence" between bodies is reduced as the bodies are moved farther apart based on Newton's law of universal gravitation.

Newton's law of universal gravitation states that the force of attraction (gravity) acting between the Earth and all physical objects is directly proportional to the Earth's mass, directly proportional to the physical object's mass and inversely proportional to the square of the distance separating the Earth's center and that physical object.

A 1.0 kg toy car is released at the top of a frictionless track on the left and rolls off of the track from its right
side ramp. The car starts at a height of 0.80 m, goes through a 0.50 m diameter loop, and exits the ramp at a
height of 0.25 m.

Answers

Answer: -5.4

Explanation:

Khan said so

Answer:

2.5 J

Explanation:

What is the change in the car gravitational potential energy from A-B

1. What physical benefits can a person gain from playing floor hockey?​

Answers

Answer:

strengthens ur muscles

10. What is the acceleration due to gravity at a location
where a 15.0-kilogram mass weighs 45.0 newtons?
1) 675 m/s2
2) 9.81 m/s2
3) 3.00 m/s2
4) 0.333 m/s2

Answers

The answer is 3) 3.00 m/s2

A tea kettle is used to boil liquid water. When the water is boiling, a whistling sound comes from the kettle. Which provides the best explanation for the sound?

A. The liquid particles are sliding past each other slowly as the temperature increases
B. The gas particles are being pushed below the water at the bottom of the kettle.
C. The gas particles spreading out in all directions are being pushed quickly through a small opening.
D. The liquid particles are moving very quickly to the center of the kettle and pushing any gas particles out of the way.

Answers

Answer:

C would be the correct answer

Answer:

It has to have a whistle device on the spout. When boiling occurs, water vapour displaces air above the water which has to escape through the whistle hence activating the required vibrations. Thereafter, the continuing supply of steam does the same job until the cook involves turns off the heat. The whistle is not made to exacting scientific standards and there is no doubt a range of pressures above which it will work it. It would be interesting to know how you observed the water boiling without using a transparent kettle.

Explanation:

hope it helps

PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (50pts)

Answers

Explanation:

object D would be the hardest to stop, it has more mass, thus it has a higher momentum than the others, requiring a larger force to stop

Which carries information by copying an original sound?
O analog signal
O digital signal
O volume
O frequency

Answers

Answer:

A. Analog signal

Explanation:

:)

Answer all of them an you will get the brain list

Answers

Answer:

4. Force = 178.6 Newton.  

5. Acceleration = 2.28 m/s².

6. Force = 178.6 Newton.

Explanation:

4. Given the following data;

Acceleration = 3.8 m/s²

Mass = 47kg

Force = mass * acceleration

Force = 47 * 3.8

Force = 178.6 Newton.

5. Given the following data;

Force = 785N

Mass = 345kg

Acceleration = force/mass

Acceleration = 785/345

Acceleration = 2.28 m/s²

6. Given the following data;

Acceleration = 6m/s²

Force = 32N

Mass =force/acceleration

Mass = 32/6

Mass = 5.33 kilograms

I need help with this ?

Answers

Answer:

Frequency

Explanation:

Doesn't say how often he exercises

Brainliest if right.

Show your work: A wolf chasing an elk. The wolf has a mass of 100 kg and is running with a velocity of 16 m/s
to the right. What is the wolf's momentum?
The elk has a mass of 180 kg. What does the elk's speed have to be for it to have the same momentum as the
wolf?

Answers

Answer:

Wolf=1600kg*m/s

Elk= 8.89 m/s

Explanation:

p=mv

p=100*16

p=1600

1600=180*v

v=8.89 m/s

Assume ω = 47.0 rad/s . What is the magnitude v of the velocity of the particle in m/s?

Answers

That completely depends on the radius of the particle's path.  

That is, the radius of the wheel the particle is riding on, and exactly where on the wheel the particle is riding.

This information is not included in the question, so no answer is possible.

If a sealed syringe is plunged into cold water, in which direction will the syringe piston slide? *
A) No movement will occur
B) in
C) out
D) The direction cannot be predicted.

Answers

Answer:

a

Explanation:

can you help me with my question According to the narrator in Paragraph 3 of "The Celebrated Jumping Frog of Calaveras County," Simon Wheeler's tone throughout his entire tale was A earnest and sincere, B. excited and pressing, C. sad and melancholy,

Q. Why do molecules of an object moving faster when dropped to the ground?
(can you give a good example, if you aren't able to explain in words).

spam & you'll be reported

Answers

Answer:

the cause of variation gravity

Answer:

Heavier Objects Don't Hit the Ground First

A 12.0 cm object is 9.0 cm from a convex mirror that has a focal length of -4.5 cm. What is the distance of the image from the mirror?

Answers

Answer: -3cm

Explanation:

Answer:

-3

Explanation:

edg

what are the comparisons and contrast of adaptation and natural selection? ASAP!!!!!!

Answers

Answer:

Natural selection is a mechanism, or cause, of evolution.

Explanation:

Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations.

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