Have an account?
Skip to Content
Build your own quiz
11 questions
Show Answers
See Preview
- Comprehension for next 11 questions1. Multiple Choice30 seconds1 pt
What is the cause of Earth's electric field according to the definition provided?
The rotation of the Earth around the sun
The density and temperature difference in the outer core leading to the motion of liquid iron
The gravitational pull of the moon
The presence of solar wind
2. Multiple Choice30 seconds1 ptWhat is the primary use of Earth's electric field as mentioned in the material?
To generate electricity for human use
To protect organisms from harmful solar radiation
To facilitate global communication systems
To maintain the Earth's rotation
3. Multiple Choice30 seconds1 ptWhat does an electric generator use to convert kinetic energy into motion?
The relationship between water flow and magnetic fields
The relationship between the electric current and magnetic fields
The combustion of gases
The conversion of solar energy
4. Multiple Choice30 seconds1 ptWhat is the function of an electric motor as described in the document?
To convert kinetic energy of a rotating magnet into electrical energy
To generate electricity for household appliances
To convert electrical energy into the kinetic energy of a rotating magnetic, which causes motion
To store electrical energy for later use
5. Multiple Choice30 seconds1 ptWhat is the purpose of an electromagnet according to the learning material?
To convert electrical energy into light
To generate a magnetic field using electricity
To produce heat using electrical current
To create a permanent magnetic field
6. Multiple Choice30 seconds1 ptWhat is a magnetic field?
A type of electric current
A region around a magnetic material or a moving electric charge within which the force of magnetism acts
A force that only repels objects
A pattern of rocks that are formed from continental rifts
7. Multiple Choice30 seconds1 ptWhat causes magnetic reversal?
The movement of the Earth's tectonic plates
A change in the gravitational pull of the Earth
A change in direction or orientation of the liquid iron convection currents in the outer core
The rotation of the Earth around the Sun
8. Multiple Choice30 seconds1 ptHow often does magnetic reversal occur on average?
Every 100,000 years
Every 500,000 years
Every 1,000,000 years
Every 10,000 years
9. Multiple Choice30 seconds1 ptWhat is the definition of a pole in terms of a magnet?
The center of a magnetic field
The end of a magnet that repels the same end of another magnet
The end of a magnet that is attracted to the opposite end of the other
The hottest point in a magnetic field
10. Multiple Choice30 seconds1 ptWhat is a solenoid?
A type of battery
A coil of wire in an electromagnet that generates a magnetic field when electrical current travels through it
A permanent magnet
A mechanical switch
11. Multiple Choice30 seconds1 ptWhat happens when the same ends of two magnets are brought close to each other?
They attract each other
They create an electric current
They repel each other
Nothing happens
- Answer choicesTagsAnswer choicesTags