Exam (elaborations)
STRAIGHTERLINE PHYSICS EXAM 1 CHAPTERS 1-4
- Course
- Institution
STRAIGHTERLINE PHYSICS EXAM 1 CHAPTERS 1-4
[Show more]
Content preview
STRAIGHTERLINE PHYSICS EXAM 1 CHAPTERS 1-4velocity - Answers-whenever a net force acts on an object there is a change in the
objects
opposite to the direction of sliding - Answers-the direction of the force of friction on a
sliding crate is
the newton - Answers-the unit of mass is the kilogram, and unit of weight is
the net force acting on it is 0 - Answers-an object cannot remain at rest unless which of
the following holds
it could be moving to the left, right or be at rest - Answers-a block of mass 2kg is acted
upon two forces 3N left and 4N right, what can you say about the blocks motion
moving with a constant nonzero accerleration - Answers-a massive block is being pulled
along a horizontal frictionless surface by a constant horizontal force. the block must be
twice as much. - Answers-An object is propelled along a straight-line path by a force. If
the net force were doubled, the object's acceleration would be
halves - Answers-An object is propelled along a straight-line path in space by a force. If
the mass of the object somehow becomes twice as much, its acceleration
5N - Answers-An object is pulled northward by a force of 10 N and at the same time
another force of 15 N pulls it southward. The magnitude of the resultant force on the
object is
10N - Answers-The force of friction on a sliding object is 10 newtons. The applied force
needed to maintain a constant velocity is
6N - Answers-A 10-N falling object encounters 4 N of air resistance. The net force on
the object is
0N - Answers-An apple weighs 1 N. When held at rest above your head, the net force
on the apple is
1N - Answers-An apple at rest weighs 1 N. The net force on the apple when it is in free
fall is
all of these - Answers-Which has zero acceleration? An object
at rest.
in mechanical equilibrium.
moving at constant velocity.
all of these
, none of these
is zero - Answers-Whenever the net force on an object is zero, its acceleration
about 1 kg. - Answers-The mass of a pet turtle that weighs 10 N is
has zero acceleration. - Answers-An object following a straight-line path at constant
speed
400 N. - Answers-A man weighing 800 N stands at rest on two bathroom scales so that
his weight is distributed evenly over both scales. The reading on each scale is
equal to its weight. - Answers-A rock is thrown vertically into the air. At the very top of its
trajectory the net force on it is
9.8 - Answers-A rock is thrown vertically into the air. At the top of its path, its
acceleration in meters per second per second is
cannot have a magnitude equal to 5N - Answers-Two forces, of magnitude 4N and 10N,
are applied to an object. The relative direction of the forces is unknown. The net force
acting on the object __________.
heavier object. - Answers-Two objects of the same size, but unequal weights are
dropped from a tall tower. Taking air resistance into consideration, the object to hit the
ground first will be the
the light woman - Answers-A light woman and a heavy man jump from an airplane at the
same time and open their same-size parachutes at the same time. Which person will
get to a state of zero acceleration first?
10 times as much - Answers-A 10-kg brick and a 1-kg book are dropped in a vacuum.
The force of gravity on the 10-kg brick is
5N - Answers-An astronaut on another planet drops a 1-kg rock from rest and finds that
it falls a vertical distance of 2.5 meters in one second. On this planet, the rock has a
weight of
acceleration - Answers-If an object of constant mass experiences a constant net force, it
will have a constant
force - Answers-The newton is a unit of
0N - Answers-A 10-N falling object encounters 10 N of air resistance. The net force on
the object is
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller GEEKA. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now