470799
Frage 1
Frage
What is the kinetic energy of an 8 kg bird flying at 9 meters per second?
Antworten
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324 J
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72 J
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36 J
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291 J
Frage 2
Frage
The mechanical energy (ME)=2500. At point B, the PE= _____________ and KE=______________.
Image:
ENERGY.PNG (image/PNG)
Antworten
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2500 J, 2500 J
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2000 J, 500 J
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1000 J, 1500 J
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1250 J, 1250 J
Frage 3
Frage
The mechanical energy (ME)=2500. At point A, the PE= _____________ and KE=______________. (*Point A is not on the ground, but near the ground.*)
Image:
ENERGY.PNG (image/PNG)
Antworten
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2500 J, 0 J
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0 J, 2500 J
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0 J, 0 J
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1250 J, 1250 J
Frage 4
Frage
The mechanical energy (ME)=2500. At point C, the PE= _____________ and KE=______________.
Image:
ENERGY.PNG (image/PNG)
Antworten
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0 J, 2500 J
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2500 J, 0 J
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2490 J, 10 J
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10 J, 2490 J
Frage 5
Frage
Paul pushes a box a distance 20 meters with 48 newtons. How much work is done?
Antworten
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1009 J
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523 J
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960 J
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689 J
Frage 6
Frage
______________ is found in the mantle and moves plates.
Antworten
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Convection
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Radiation
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Conduction
Frage 7
Frage
_______________ is used when a metal spoon is in hot tea.
Antworten
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Conduction
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Radiation
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Convection
Frage 8
Frage
_______________ is responsible for light coming from a bonfire.
Antworten
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Convection
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Radiation
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Conduction
Frage 9
Frage
Visible light waves are shorter than microwaves.
Antworten
- True
- False
Frage 10
Frage
Gamma rays are higher frequency than Infared but are less dangerous.
Antworten
- True
- False
Frage 11
Frage
Which of these is the order for the electromagnetic spectrum? *Abbreviation (Ex: R=Radio waves)*
Antworten
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R-M-U-V-U-I-G
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R-I-M-V-U-X-G
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R-M-I-V-X-U-G
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R-M-I-V-U-X-G
Frage 12
Frage
How does the Doppler Effect help explain the Big Bang Theory?
Antworten
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Big Bang Theory says the universe is expanding. All light seen from earth is blue shift and has longer wave lengths meaning that the object sending the light is moving away from us.
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Big Bang Theory says the universe is shrinking. All light seen from earth is blue shift and has longer wave lengths meaning that the object sending the light is moving away from us.
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Big Bang Theory says the universe is shrinking. All light seen from earth is red shift and has longer wave lengths meaning that the object sending the light is moving away from us.
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Big Bang Theory says the universe is expanding. All light seen from earth is red shift and has longer wave lengths meaning that the object sending the light is moving away from us.
Frage 13
Frage
An electromagnet is a magnet created when a circuit is closed, connecting a battery a wire and rapping it around an insulator.
Image:
electromagnetic (image/jpg)
Antworten
- True
- False
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