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Science,Ch. 18- Part 4
Test Description: Electromagnetic Waves
Instructions: Answer all questions to get your test result.
1) smallest bone in your body is where and is called the ______________?
A
middle ear-hammer
B
inner ear-hammer
C
elbow-tickle bone
D
outer ear-nail
2) A gravitational field surrounds _____________________.
A
objects bigger than Earth
B
all objects
C
objects bigger than the Sun
D
objects the size of the Earth
3) A _______________ wave can't travel through space from the Sun to the Earth, but an _______________ wave can.
A
electromagnetic, mechanical
B
compressional, electromagnetic
C
mechanical, electromagnetic
D
transverse, sound
4) What speed do all electromagnetic waves travel at?
A
speed of sound, 340 m/.s
B
speed of light, 3,000,000 m/hour
C
speed of light, 300,000 km/s
D
speed of light, 2,000,000 m/s
5) the wide range of electromagnetic waves with different frequencies and wavelengths forms the ______________.
A
radiant spectrum
B
ultraviolet spectrum
C
electromagnetic spectrum
D
visible light spectrum
6) Radar, an acronym for RAdio Detecting And Ranging, uses ____________________ to detect objects in the same way as echolocation.
A
infrared waves
B
gamma rays
C
ultraviolet radiation
D
electromagnetic waves
7) Most of the electromagnetic waves given off by an object at room temperature are ________________________.
A
infrared waves
B
ultraviolet radiation
C
radiant energy
D
gamma rays
8) Infrared waves can detect objects that are __________________ than their surroundings.
A
none of the above
B
warmer or cooler
C
cooler
D
warmer
9) What you see as different colors are ____________________ of different wavelengths.
A
gamma rays
B
infrared waves
C
electromagnetic waves
D
ultraviolet radiation
10) ______________ light has the longest wavelength.
A
Yellow
B
Red
C
Green
D
Blue
*select an answer for all questions
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