PHYSICS HIGH SCHOOL

Imagine that an uncharged pith ball is brought into the electrostatic field of a charged rod. The side of the pith ball closest to the negatively charged end of the rod will A. not experience any induced charge and remain neutral.
B. be given a positive charge produced by the movement of electrons to the other end of the ball.
C. be given a negative charge produced by the movement of electrons from the rod.
D. be given a negative charge produced by the movement of electrons from the other end of the ball.

Answers

Answer 1
Answer:

As per the question the uncharged pith ball is taken towards the electrostatic field of a charged rod.

It is told that the side of the pith ball is closest to the negatively charged end of the rod .

The pith ball was initially neutral.The electrons in the atom were oriented in their respective orbits.

Whenever it is taken towards the negative end of the rod,the electrons present in the ball will not stick to their orbit .Basically the closest electrons will suffer electrostatic repulsive force and will come out their orbits.They will move towards the other end of the pith ball.Hence the closest side of the pith ball will acquire  positive charges and other side will be negative.

The bound charges nearest to the charged rod is called induced positive charges and bound negative  charges present at the other end are called free bound charges.The induced charges and free charges are equal in amount.Hence the pith ball is neutral.

Hence from above we see that only option B  is right.
Answer 2
Answer:

The correct answere is B.

Explanation: When the negative charge rod is brought close to the uncharged pith ball, the electron on side towards the rod will be repelled by the electrostatic field. This will create an electron deficient site. Hence, this side will be given a positive charge.

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A typical carbon atom has six protons, six neutrons, and six electrons. Which of these has the least amount of mass?A) one Proton
B) one Neutron
C) six Electrons
D) These masses are too tiny to measure

Answers


One proton or one neutron have very close to the same mass.

Their mass is about the same as the mass of 1,840 electrons !
So six electrons have roughly the same mass as 0.0033 of one
proton or one neutron.

Yes, these masses are very tiny.  None of them was ever measured
until the 20th Century.  But all of them have now been measured,
very precisely and accurately.  This is very impressive, and should
give us a lot of admiration for scientists of the past hundred years.
It would be very interesting to look around online and find out
how they did it.

How many people can die from an atomic bomb in 1 minute?

Answers

Answer:

no one says it that but

in hirosima their are 70000 people die instant

Simon draws a diagram to illustrate the law of reflection.Which best explains how Simon can correct the error in his diagram?

Draw the incident ray so it is longer than the reflected ray.
Make the angle of reflection and the angle of incidence equal.
Switch the labels for incident ray and reflected ray.
Make the angle of incidence larger than the angle of reflection.

Answers

Answer:

Make the angle of reflection and the angle of incidence equal.

Explanation:

The law of reflection states that at the point of incidence on a smooth surface, the angle of incidence is equal to the angle  of reflection, The incident ray, the normal and the reflected ray lie on the same plane.

Answer:

B.  Make the angle of reflection and the angle of incidence equal

Explanation:

In Act III, Scene 1, who hears these words from Titania?Thou art as wise as thou art beautiful.
A. Puck
B. Oberon
C. Bottom
D. Peaseblossom

Answers

C. Bottom

Titania speaks these words as she is under the enchantment of the magic flower, it makes her fall in love with the first thing she sees. It's comedic because Bottom is also enchanted to have the head of a donkey, so she's claiming that this peasant with a donkey head is both wise and beautiful. The reality being that he is as wise as he is beautiful, in that he is neither beautiful nor wise.

The worker’s pull on the handle of the cart can best be described as a force havingGroup of answer choices

magnitude, only

neither magnitude nor direction

direction, only

both magnitude and direction

Answers

Answer:

both magnitude and direction

Explanation:

The worker's pull on the handle of the cart is best described as the force having both magnitude and direction.

  • This is a vector quantity
  • The force is channeled to move the cart in a specific direction.
  • Also, the pull on the cart can be quantified, and so it have magnitude.
  • Most physical properties either have magnitude or direction or both.

In this case, the worker is pulling the cart towards a specified direction.

Therefore, the fitting choice is both magnitude and direction.

Final answer:

The pull on a cart's handle by a worker is a force, which in physics, has both magnitude and direction. The magnitude is how hard the pull is and the direction is where the pull is heading to.

Explanation:

In physics, the worker’s pull on the handle of the cart can best be described as a force having both magnitude and direction. Force is a vector quantity, meaning it has both magnitude (the strength of the force) and direction. For instance, when pulling a cart, the force magnitude would relate to how hard you are pulling, while the direction would be the way you are pulling towards. Without both components, the force cannot be fully described or accurately calculated.

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Joan makes the device shown in her science class.An illustration with a battery and ends labeled positive and negative. A wire is connected to the positive end of the battery and curls around an iron nail and connects back with the negative side of the battery.

What would happen to the magnetic field if she connects the battery in the opposite direction?

The field would stop.
The field would get stronger.
The field would reverse its poles.
The field would get weaker.

Answers

If she connects the battery in the opposite direction, the magnetic field would reverse its poles.

What is magnetic field?

The magnetic field is the region of space where an object experiences the magnetic force and obtain magnetic properties.

A wire is connected to the positive end of the battery and curls around an iron nail and connects back with the negative side of the battery. This arrangement will let the current flow from the positive end of the battery towards the negative terminal of the battery.

If the battery is connected in the opposite direction, the current will flow from negative to positive terminal.

Therefore, If she connects the battery in the opposite direction, the magnetic field would reverse its poles.

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Answer:

The field would reverse its poles.

Explanation:

The current flow will reverse directions which will reverse the poles in the magnetic field created around the iron nail.
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