Glencoe 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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