PHYSICS LONG TEST (JULIANO)

Why is the connection between electricity and magnetism considered a fundamental discovery?

• It makes possible much of today's technology

• It changed the field of chemistry forever

• It explains the behavior of sound waves

• It led to the invention of the telescope

What did Hans Christian Oersted demonstrate in his lecture?

• The difference between a north pole and a south pole

• The relationship between electricity and magnetism

• The connection between gravity and magnetism

• The function of a simple machine

How do compasses work in relation to Earth's magnetic field?

• Compasses are affected by gravitational forces

• Compasses align themselves with the sound waves

• Compasses align with Earth's magnetic field

• Compasses point towards the center of the Earth

How does the direction of the electric current relate to the direction of the magnetic field it produces?

• They are parallel to each other

• They are perpendicular to each other

• They are always in opposite directions

• They do not have a relationship

How do magnets interact with each other?

• All poles repel each other

• Magnets do not interact with each other

• Similar poles repel and opposite poles attract

• Only certain materials repel magnets

What does the second right-hand rule help to determine?

• The direction of the magnetic field, current, and force

• The strength of a magnetic field

• The properties of superconducting magnets

• The behavior of charged particles

What physical quantity does the force on a single charged particle moving through a magnetic field depend on?

• The charge of the particle and its velocity

• The position of the particle in space

• The magnetic force of the particle

• The distance traveled by the particle

How is the strength of a magnetic field measured?

• Volts per meter

• Ohms

• Newtons per Ampere-meter

• Joules per Coulomb

Which statement best describes magnetic field lines and their representation?

• They represent the direction of the magnetic field created by magnets

• They point from the south pole to the north pole

• They are non-existent around magnets

• The closer they are, the weaker the magnetic field

When does the mysterious force, known as the magnetic force, appear?

• When an object is motionless

• When charges are stationary

• Only in the presence of protons

• When an electric charge moves