PHYSICS TEST 2 REVIEW

Descrição

Physics Review
Amber Garcia
Quiz por Amber Garcia, atualizado more than 1 year ago
Amber Garcia
Criado por Amber Garcia mais de 7 anos atrás
5
0

Resumo de Recurso

Questão 1

Questão
Compared to the mass of a certain object on Earth, the mass of the same object on the moon is:
Responda
  • less
  • more
  • the same

Questão 2

Questão
What two quantities does torque depend on [blank_start]......?[blank_end]
Responda
  • Force & Lever arm

Questão 3

Questão
Whenever the net force on an object is zero, its acceleration is[blank_start]:[blank_end]
Responda
  • 0

Questão 4

Questão
A fast car can accelerate without interacting with anything
Responda
  • True
  • False

Questão 5

Questão
What must occur for an object to accelerate? [blank_start]blank[blank_end]
Responda
  • A netforce must act on it

Questão 6

Questão
What must occur for an object to fall over? [blank_start]blank[blank_end]
Responda
  • The center mass must be over pivet point

Questão 7

Questão
Define momentum. [blank_start]blank[blank_end]
Responda
  • Measure how difficult to stop moving obj

Questão 8

Questão
Age of Earth? [blank_start]blanket[blank_end]
Responda
  • 4.6 billion years

Questão 9

Questão
Age of Universe[blank_start]?[blank_end]
Responda
  • 13.7 billion years

Questão 10

Questão
Age of Sun[blank_start]?[blank_end]
Responda
  • 5 billion

Questão 11

Questão
Closest galaxy and how many light years away? [blank_start]..[blank_end]
Responda
  • LMC 160,000 LY away

Questão 12

Questão
Closest star and how many light years away[blank_start]?[blank_end]
Responda
  • Alpha Centauri and 3.3 LY away

Questão 13

Questão
Hooke's Law [blank_start]is?[blank_end]
Responda
  • Force is proportional to stretch F=kx

Questão 14

Questão
An object maintains its state of motion because it has
Responda
  • weight
  • speed
  • acceleration
  • mass
  • 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]
Responda
  • If Earth has a foce so does the moon

Questão 16

Questão
Pluto was discovered by: [blank_start]___[blank_end]
Responda
  • 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]
Responda
  • Principia

Questão 18

Questão
If the mass of an object does not change, a constant net force on the object produces constant
Responda
  • velocity
  • acceleration
  • displacement
  • 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]
Responda
  • Skateboarder needs a net external force

Questão 20

Questão
What was Tyco Brahe's major contribution to science?
Responda
  • Charted planets and stars daily for twenty years
  • Wrote Principia
  • Created telescope
  • Only charted planets for twenty years

Questão 21

Questão
[blank_start]State Newton's Three Laws of Motion[blank_end]
Responda
  • 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]
Responda
  • 1. planets move ellipses around the sun
  • 2. planets move faster closest to sun
  • T^2 x a^3 period/distance are proport.

Questão 23

Questão
Define Mass
Responda
  • Measure of space
  • Measure of objects inertia

Questão 24

Questão
Define weight
Responda
  • Measure of the effect if gravity in an objects mass
  • Measure of velocity on an objects mass

Questão 25

Questão
Facts about Isaac Newton's Life
Responda
  • Had two siblings
  • Born on Xmas, Built a working sun dial @ 6 years old, had several breakdowns, developed calculus
  • Never went to college, born on Halloween, live with grandpa

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