Physics Quiz bee Gen Physics 2

​The phenomenon of inducing a voltage by changing the magnetic field around a conductor is called __________.

• electromagnetic induction

• transformer induction

• Faraday’s induction     

• generated voltage

By accelerating the magnet inside the coil, the current in it will _________.

• decrease

• increase

• remain constant

• reverse

A square loop of wire with 10 turns and a side length of 1 m is placed in a changing magnetic field. If the magnetic field changes from 2 T to 4 T within 8 seconds, what is the average induced emf?

• 2.90 V

• 0.648 V

• 2.50 V

• 0.226 V

A 500-turn solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change by 0.06 Wb occur to produce such a voltage?

• 5 s

• 0.5 s

• 0.1 s

• 0.01 s

Faraday’s laws of electromagnetic induction are related to:

• the strength of a magnetic field

• the electromagnetic field of a generator

• the electromagnetic field of a chemical cell

• the current flowing in a conductor

How can you tell one form of electromagnetic energy from another?

• amplitude

• speed

• color

• wavelength  

The region of the electromagnetic spectrum where humans can detect electromagnetic radiation is____________.

• X-ray

• ultraviolet

• infrared

• visible light

Electromagnetic energy can be described by ____________.

• amplitude

• frequency

• amplitude, frequency and speed

• speed

Which of the following colors has the longest wavelength?

• red

• green

• yellow

• blue

In _______, a wave reaches a boundary and changes direction as it passes into another medium

• refraction

• reflection

• interference

• diffraction