PHYSICS TEST 2 REVIEW

Description

Physics Review
Amber Garcia
Quiz by Amber Garcia, updated more than 1 year ago
Amber Garcia
Created by Amber Garcia about 8 years ago
12
0

Resource summary

Question 1

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

Question 2

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

Question 3

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

Question 4

Question
A fast car can accelerate without interacting with anything
Answer
  • True
  • False

Question 5

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

Question 6

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

Question 7

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

Question 8

Question
Age of Earth? [blank_start]blanket[blank_end]
Answer
  • 4.6 billion years

Question 9

Question
Age of Universe[blank_start]?[blank_end]
Answer
  • 13.7 billion years

Question 10

Question
Age of Sun[blank_start]?[blank_end]
Answer
  • 5 billion

Question 11

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

Question 12

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

Question 13

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

Question 14

Question
An object maintains its state of motion because it has
Answer
  • weight
  • speed
  • acceleration
  • mass
  • none of the above

Question 15

Question
Describe briefly how Netwon's third law manifests itself for the Earth-Moon system[blank_start]...?[blank_end]
Answer
  • If Earth has a foce so does the moon

Question 16

Question
Pluto was discovered by: [blank_start]___[blank_end]
Answer
  • Clyde Tombough 1929

Question 17

Question
What was the name of Newton's book, published 20 years after his initial findings[blank_start]?[blank_end]
Answer
  • Principia

Question 18

Question
If the mass of an object does not change, a constant net force on the object produces constant
Answer
  • velocity
  • acceleration
  • displacement
  • velocity and acceleration

Question 19

Question
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]
Answer
  • Skateboarder needs a net external force

Question 20

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

Question 21

Question
[blank_start]State Newton's Three Laws of Motion[blank_end]
Answer
  • Law of Intertia,Fnet=ma, Action/reaction

Question 22

Question
Kepler's Three Laws of Planetary Motion? [blank_start]...[blank_end] [blank_start]...[blank_end] [blank_start]...[blank_end]
Answer
  • 1. planets move ellipses around the sun
  • 2. planets move faster closest to sun
  • T^2 x a^3 period/distance are proport.

Question 23

Question
Define Mass
Answer
  • Measure of space
  • Measure of objects inertia

Question 24

Question
Define weight
Answer
  • Measure of the effect if gravity in an objects mass
  • Measure of velocity on an objects mass

Question 25

Question
Facts about Isaac Newton's Life
Answer
  • 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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