Physical Science

Chapter 12: Electromagnetic Waves

Section 1 Self-Check Quiz-Eng.

1.
What type of waves do not require matter to carry energy?
A)electromagnetic
B)mechanical
C)compressional
D)transverse
2.
Which of the following types of waves can travel through space?
A)mechanical
B)transverse
C)light
D)compressional
3.
Electromagnetic waves are made by __________.
A)vibrating air molecules
B)vibrating water molecules
C)vibrating electric charges
D)strong compressions
4.
Magnetic fields that surround all magnets exert __________.
A)electric current
B)a magnetic force
C)air pressure
D)resistance
5.
What exerts the force that causes other electric charges to move?
A)electric poles
B)insulators
C)an electric field
D)conductors
6.
Electric current passing through a wire produces __________.
A)a permanent magnet
B)a magnetic field around the wire
C)geographic poles
D)a compass
7.
Which of the following statements about electric charges is true?
A)Objects must be touching one another to exert electrical force.
B)Electrical forces act at a distance.
C)Air cannot conduct electricity - it is conducted only by solid materials.
D)Opposite electric charges always repel one another.
8.
Electric current is created by __________.
A)the movement of neutrons in a wire
B)insulators
C)conductors
D)the movement of electrons in a wire
9.
The energy carried by an electromagnetic wave is called __________ energy.
A)radiant
B)mechanical
C)thermal
D)potential
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