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