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Physics Quiz: Magnetic and Gravitational Forces

15 Questions

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Physics Quiz: Magnetic and Gravitational Forces

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Questions and Answers

What primarily generates the Earth's magnetic field?

Electrical currents in the atmosphere

The rotation of the Earth

Solar wind interactions

The movement of molten metal in its core (correct)

As two magnets that attract get closer to each other, how does the magnetic force between them change?

It increases (correct)

It decreases

It oscillates

It stays constant

Which of the following statements accurately describes a difference between gravitational and magnetic fields?

Both forces can repel

Gravity depends on magnetic strength

Magnetic fields affect all objects irrespective of their properties

Gravitational fields only attract while magnetic fields can attract or repel (correct)

What factor does NOT affect the strength of a magnetic field?

Temperature of the environment Signup and view all the answers

Which of the following correctly describes the interaction between two bar magnets positioned with opposite poles facing each other?

They will attract each other Signup and view all the answers

What is the primary factor that determines the strength of the gravitational force between two objects?

Mass and distance Signup and view all the answers

How does weight differ from mass?

Mass is the amount of matter, while weight is the gravitational pull. Signup and view all the answers

If a person's weight is 450 N on Earth, what is the correct calculation method to determine their mass?

Divide weight by gravitational strength. Signup and view all the answers

Why do astronauts aboard the international space station appear to float despite being in a strong gravitational field?

They are in free fall alongside the station. Signup and view all the answers

According to Einstein's theory, what is gravity fundamentally considered to be?

A warp in spacetime. Signup and view all the answers

What do both electric and magnetic fields have in common regarding their interaction with objects?

Both can repel and attract objects. Signup and view all the answers

Which of the following statements accurately describes how the strength of an electric field is influenced?

It depends on both the distance from and the magnitude of the charge. Signup and view all the answers

What factor primarily determines the generation of an electromagnetic field in a metal?

Temporary exposure to an electric field. Signup and view all the answers

Which statement regarding the electromagnetic spectrum is correct?

The visible part of the spectrum is a small portion of the entire electromagnetic spectrum. Signup and view all the answers

Which of the following best explains why field forces weakens with distance?

They are inherently weaker at greater distances due to spatial distribution. Signup and view all the answers