6631417
Descrição
Quiz por Amber Garcia, atualizado more than 1 year ago
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Criado por Amber Garcia
quase 8 anos atrás
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Questão 1
Questão
Compared to the mass of a certain object on Earth, the mass of the same object on the moon is:
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less
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more
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the same
Questão 2
Questão
What two quantities does torque depend on [blank_start]......?[blank_end]
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Force & Lever arm
Questão 3
Questão
Whenever the net force on an object is zero, its acceleration is[blank_start]:[blank_end]
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0
Questão 4
Questão
A fast car can accelerate without interacting with anything
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- True
- False
Questão 5
Questão
What must occur for an object to accelerate? [blank_start]blank[blank_end]
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A netforce must act on it
Questão 6
Questão
What must occur for an object to fall over? [blank_start]blank[blank_end]
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The center mass must be over pivet point
Questão 7
Questão
Define momentum. [blank_start]blank[blank_end]
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Measure how difficult to stop moving obj
Questão 8
Questão
Age of Earth? [blank_start]blanket[blank_end]
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4.6 billion years
Questão 9
Questão
Age of Universe[blank_start]?[blank_end]
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13.7 billion years
Questão 10
Questão
Age of Sun[blank_start]?[blank_end]
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5 billion
Questão 11
Questão
Closest galaxy and how many light years away? [blank_start]..[blank_end]
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LMC 160,000 LY away
Questão 12
Questão
Closest star and how many light years away[blank_start]?[blank_end]
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Alpha Centauri and 3.3 LY away
Questão 13
Questão
Hooke's Law [blank_start]is?[blank_end]
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Force is proportional to stretch F=kx
Questão 14
Questão
An object maintains its state of motion because it has
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weight
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speed
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acceleration
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mass
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none of the above
Questão 15
Questão
Describe briefly how Netwon's third law manifests itself for the Earth-Moon system[blank_start]...?[blank_end]
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If Earth has a foce so does the moon
Questão 16
Questão
Pluto was discovered by: [blank_start]___[blank_end]
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Clyde Tombough 1929
Questão 17
Questão
What was the name of Newton's book, published 20 years after his initial findings[blank_start]?[blank_end]
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Principia
Questão 18
Questão
If the mass of an object does not change, a constant net force on the object produces constant
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velocity
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acceleration
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displacement
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velocity and acceleration
Questão 19
Questão
To move forward, WHY does a skateboarder push off against the ground instead of just pushing his body with his hand? [blank_start]------------[blank_end]
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Skateboarder needs a net external force
Questão 20
Questão
What was Tyco Brahe's major contribution to science?
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Charted planets and stars daily for twenty years
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Wrote Principia
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Created telescope
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Only charted planets for twenty years
Questão 21
Questão
[blank_start]State Newton's Three Laws of Motion[blank_end]
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Law of Intertia,Fnet=ma, Action/reaction
Questão 22
Questão
Kepler's Three Laws of Planetary Motion? [blank_start]...[blank_end] [blank_start]...[blank_end] [blank_start]...[blank_end]
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1. planets move ellipses around the sun
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2. planets move faster closest to sun
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T^2 x a^3 period/distance are proport.
Questão 23
Questão
Define Mass
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Measure of space
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Measure of objects inertia
Questão 24
Questão
Define weight
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Measure of the effect if gravity in an objects mass
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Measure of velocity on an objects mass
Questão 25
Questão
Facts about Isaac Newton's Life
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Had two siblings
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Born on Xmas, Built a working sun dial @ 6 years old, had several breakdowns, developed calculus
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Never went to college, born on Halloween, live with grandpa
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