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Waves And Energy Review #2
Test Description: 7th Grade
Instructions: Answer all questions to get your test result.
1) The sun's nuclear explosions produce enormous amounts of which of the following?
A
sound and heat
B
light and heat
C
star dust and meteors
D
burning gases and asteroids
2) Which of the following happens during a nuclear reaction?
A
Atomic particles are destroyed
B
Atomic particles are condensed then implode
C
Particles are pushed apart
D
Particles collide producing heat and light
3) Heat and light from the sun travel to the Earth as which type of wave?
A
Radiation waves
B
Seismic waves
C
Microwaves
D
Sound Waves
4) How much of the sun's energy does the Earth receive?
A
almost all
B
very little
C
almost half
D
none
5) Which of the following allows the Earth's atmosphere to trap heat from the sun?
A
Coriolis Effect
B
Global Friction
C
Eclipses
D
Greenhouse Effect
6) Which of the following would most likely happen without the Greenhouse Effect?
A
no change
B
global warming
C
too hot to support life
D
too cold to support life
7) Why does the Earth's equator receive more heat from the sun than the poles?
A
Light rays are indirect
B
Light rays are blocked
C
Light rays are longer
D
Light rays are more direct
8) On Earth which surface absorbs the most heat from the sun?
A
blacktopped road
B
sandy desert
C
lakes
D
grassy fields
9) In which direction do all waves travel?
A
toward the source
B
inward from the source
C
outward from the source
D
backward from the source
10) Which of the following wave types travels THROUGH the Earth?
A
light waves
B
microwaves
C
seismic waves
D
water waves
*select an answer for all questions
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