# Physics Quiz For Class 12

With the ECTI, you will learn through the Physics Quiz For Class 12 in a continuous testing process. It will help you prepare the particular topic in a row.

On the other hand, repeated practice will ensure your grip for the best preparation.
I am sure that the level of Physics Class 12 Mcqs With The Answer is helpful material in the preparation of tests, quizzes, and examinations for a grade.

I carefully picked the most repeated but the Most Important Physics Quiz For Class 12.
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In the coming future, I am going to add more Physics Quiz For Class 12.
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## Physics Quiz For Class 12 Quiz Instructions:

• There will be 30 multiple-choice questions in this online test.
• The answer to the questions will change randomly each time you start this test.
• Practice this test at least 3 times if you want to secure High Marks.
• At the End of the Test, you can see your Test score and Rating.
• If you found any incorrect answers in the quiz. simply click on the quiz title and comment on the MCQs. so that our team can update the incorrect answer on time.

• Question of

## When an object gains electrons it becomes __________

• Neutral
• Positively charged
• Negatively charged
• None
• Question of

## An atom of oxygen has 8 protons and 10 electrons, this means the atom is ____________

• positively charged because it has excess electrons
• negatively charged because it has excess electrons
• positively charged because it has a deficiency of electrons
• negatively charged because it has a deficiency of electrons
• Question of

## After a balloon is rubbed against wool, the two objects will ________ each other because they have ___________ charges

• attract; like
• attract, opposite
• repel; like
• repel; opposite
• Question of

## Which statement is true of a positively charged object?

• Positively charged objects do not contain any electrons.
• Positively charged objects do not contain neutrons or electrons.
• There is a lack of electrons on a positively charged object.
• The protons and the electrons are both positively charged on such objects.
• Question of

## When two objects are rubbed together, there is a transfer of electrons. How do you determine which object acquires the transferred electrons?

• Always transfer from the bigger to the smaller object, to make it even
• Transfer is based on the initial charge of the two objects
• Transfer is based on how much electron affinity that each object has
• Always transfer from the more negative to the more positive object
• Question of

## What is the end result of charging by contact?

• Both object have the same charge, so they will attract one another
• Both object have the same charge, so they will repel one another
• Both object have the opposite charge, so they will attract one another
• Both object have the opposite charge, so they will repel one another
• Question of

## When a charged object contacts another object (one is usually a conductor), there is a transfer of electrons. How do you determine which object acquires the transferred electrons?

• Always transfer from the bigger to the smaller object, to make it even
• Transfer is based on the initial charge of the two objects
• Transfer is based on how much electron affinity that each object has
• Always transfer from the more negative to the more positive object
• Always transfer from the more negative to the more positive object
• Always transfer from the more negative to the more positive object
• Question of

## Why does the child’s hair stick up?

• The boy is grounded since he’s at the bottom of the slide
• He gained a charge from the slide, and since he’s not grounded, his hairs have the same charge so they repel one another
• He gained a charge from the slide, and since he’s not grounded, his hairs have opposite charges so they repel one another
• When hair is neutral, some have a positive side and some have negative side, so they will attract to each other, making it stand up
• Question of

## After grounding, how will objects interact?

• Both will have the same charge, so they attract one another
• Both will be neutral, so they will attract one another
• Both will be neutral, so they will repel one another
• Both will be neutral, so they will not attract nor repel
• Both will be neutral, so they will not attract nor repel
• Question of

## A balloon is rubbed against a student’s hair and then touched to a wall. The balloon sticks to the wall due to

• The balloon is charged neutral, so is the wall, so it attracts to the wall
• The balloon is charged opposite the wall, so it attracts to the wall
• The balloon has a charge, so it attracts the neutral wall
• The wall grounds the balloon, so it sticks
• Question of

## When a plastic rod is rubbed with wool, the wool acquires a positive charge because

• protons are transferred from the wool to the rod
• protons are transferred from the rod to the wool
• electrons are transferred from the rod to the wool
• electrons are transferred from the wool to the rod
• Question of

## Grounding happens when _______.

• A neutral object comes into contact with another neutral object
• A charged object is rubbed against another charged object
• A neutral object touches a MASSIVE conductive object
• A charged object touches a MASSIVE conductive object
• Question of

## Power is defined as:

• the something that enables an object to do work
• how much force an object has
• the rate at which work is done
• energy due to the position of something
• Question of

## Kaylee and Jessica were moving boxes of quiz bowl questions. They each moved 10 boxes. Jessica moved the 10 boxes in 30 minutes, while Kaylee did it in 20 minutes. Assuming the boxes required the same amount of force to move, and they were all moved the same distance, which of the following is true:

• Kaylee did more work than Jessica, because she did it faster.
• Jessica did more work than Kaylee, because she worked longer.
• Jessica did more work than Kaylee, because she worked longer.
• None of the above.
• Question of

• Joule
• Watt
• Newton
• Kelvin
• Question of

## A small motor does 4000J of work in 20 seconds. What is the power of the motor in watts?

• 0.005 Watts
• 200 Watts
• 80,000 Watts
• None of the Above
• None of the Above
• Question of

## A 55 kg person walks up a staircase, and a second 55 kg person runs up the staircase. Who develops more power and why?

• the person who runs up because he takes less time
• the person who walks up because he takes more time, using more energy
• same power for both because both cover the same distance with the same force
• not enough information to determine
• Question of

• 10W
• 50W
• 100W
• 300W
• Question of

• 360 J
• 3600 J
• 36,000 J
• 360,000 J
• Question of

## What is the purpose of this safety sign?

• To make sure students wear a protective apron.
• To make sure students put on gloves.
• To make sure goggles are worn before starting.
• To make sure all directions are read before beginning.
• Question of

## Which procedure below will increase the capacitance of a parallel-plate capacitor?

• Increase the distance of separation between the two plates
• Reduce the surface area of the plate
• Insert an insulator between the two plates
• Insert a conductor between the two plates
• Question of

## A parallel-plate capacitor is charged and then disconnected from the supply. Which of the following will increase the capacitance of the capacitor?

• Reduce the area of the plates
• Move the plates closer to each other
• Insert a conductor between the plates of the capacitor
• Increase the potential difference across the capacitor
• Question of

• 2:5
• 5:2
• 1:4
• 1:2
• Question of

• 2.1nC
• 3.0µC
• 2.75µC
• 3333.1µC
• Question of

## The S.I. unit for electric field is__________

• nC
• μC
• n/C
• none of the above
• Question of

## Electric charges are created ______.

• by gravitational forces.
• separately
• between 2 oppositely charged objects.
• by neutrons.
• Question of

## How can a neutral object become charged?

• by being dipped in water
• by being stuck to the desk with tape
• by allowing gravity to work on it
• by having electrons added or removed
• Question of

## Where can an electric field be found?

• below a force field
• in a gravitational field
• in the space surrounding a charged object
• outside of a magnetic field
• Question of

## If I triple the value of charge of a test charge the electric field will

• Increase by 3
• Increase by 9
• Not change
• Decrease by 9
• Question of

• 1 N/C
• 1 kgm/s
• 1 J/C
• 1 N/m