Physics Exam 2 (final)

25 cards

physics


 
  
Created Dec 10, 2012
by
leahknew

 

 
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  Side A   Side B
1
If you push an object twice as far while applying the same force, you do
 
twice as much work
2
A job is done slowly, while an identical job is done quickly.  Both jobs require the same...
 
power
3
If an object is raised twice as high, its potential energy will be
 
twice as much
4
A ball rolling down an incline has its maximum kinetic energy at
 
the bottom
5
No work is done by gravity on a bowling ball that rolls along a bowling alley becauuse
 
the force on the ball is at right angles to the ball's motion
6
A jack system will increase the potential energy of a heavy load by 1000 J with a work input...
 
50%
7
A moving object  has
 
speed, velocity, momentum, and energy
8
A feather and a coin dropped in a vacuum fall with equal
 
accelerations
9
Which moves faster in m/s on a merry-go-round: a horse on the inside or a horse on the outside...
 
outside horse
10
An industrial flywheel has a greater rotational inertia when most of its mass is 
 
nearest the rim
11
A coin and a ring roll down an incline starting at the same time.  The one to reach the...
 
coin
12
Put a pipe over the end of a wrench when trying to turn a stubborn nut on a bolt, to effectively...
 
two
13
When a twirling ice skater brings her arms inward, her rotational speed
 
increases
14
Consider a rotating donut-shaped space habitat where living quarters are on the inside surface...
 
increases
15
For a system in mechanical equilibrium the resultant forces and torques must
 
both be zero
16
According to Newton, the greater the masses of interacting objects, the
 
greater the gravitational force between them
17
According to Newton, doubling the distance between two interacting objects
 
divides by 4 the gravitational force between them
18
What is the force of gravity on a 500 N woman standing on the Earth's surface?
 
500 N
19
The earth's gravitational field extends
 
both inside and outside the earth and throughout the entire universe
20
Which is most responsible for the ocean tides? the moon or the sun?
 
the moon
21
According to Kepler's laws, the paths of planets about the sun are
 
ellipses
22
Roll a bowling ball off the edge of a table. As it falls, its horizontal component of velocity
 
remains constant
23
An earth satellite is simply a projectile
 
freely falling around the earth
24
the fastest moving planet in a solar system is
 
the planet nearest hte sun
25
a "weightless" astronaut in an orbiting shuttle is
 
like the shuttle, pulled by earth's gravitation


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