Physics Exam 1 chapters 1-4 Questions with
Detailed Verified Answers
whenever a net force acts on an object there is a
change in the objects
✓✓ velocity
the direction of the force of friction on a sliding crate is
✓✓ opposite to the direction of sliding
the unit of mass is the kilogram, and unit of weight is
✓✓ the newton
an object cannot remain at rest unless which of the
following holds
✓✓ the net force acting on it is 0
a block of mass 2kg is acted upon two forces 3N left and
4N right, what can you say about the blocks motion
✓✓ it could be moving to the left, right or be at rest
a massive block is being pulled along a horizontal
frictionless surface by a constant horizontal force. the
block must be
,✓✓ moving with a constant nonzero accerleration
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 __________.
✓✓ cannot have a magnitude equal to 5N
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
✓✓ heavier object.
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?
✓✓ the light woman
A 10-kg brick and a 1-kg book are dropped in a vacuum.
The force of gravity on the 10-kg brick is
✓✓ 10 times as much
An object is propelled along a straight-line path by a
force. If the net force were doubled, the object's
acceleration would be
, ✓✓ twice as much.
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
✓✓ halves
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
✓✓ 5N
The force of friction on a sliding object is 10 newtons. The
applied force needed to maintain a constant velocity is
✓✓ 10N
A 10-N falling object encounters 4 N of air resistance. The
net force on the object is
✓✓ 6N
An apple weighs 1 N. When held at rest above your
head, the net force on the apple is
✓✓ 0N
Detailed Verified Answers
whenever a net force acts on an object there is a
change in the objects
✓✓ velocity
the direction of the force of friction on a sliding crate is
✓✓ opposite to the direction of sliding
the unit of mass is the kilogram, and unit of weight is
✓✓ the newton
an object cannot remain at rest unless which of the
following holds
✓✓ the net force acting on it is 0
a block of mass 2kg is acted upon two forces 3N left and
4N right, what can you say about the blocks motion
✓✓ it could be moving to the left, right or be at rest
a massive block is being pulled along a horizontal
frictionless surface by a constant horizontal force. the
block must be
,✓✓ moving with a constant nonzero accerleration
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 __________.
✓✓ cannot have a magnitude equal to 5N
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
✓✓ heavier object.
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?
✓✓ the light woman
A 10-kg brick and a 1-kg book are dropped in a vacuum.
The force of gravity on the 10-kg brick is
✓✓ 10 times as much
An object is propelled along a straight-line path by a
force. If the net force were doubled, the object's
acceleration would be
, ✓✓ twice as much.
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
✓✓ halves
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
✓✓ 5N
The force of friction on a sliding object is 10 newtons. The
applied force needed to maintain a constant velocity is
✓✓ 10N
A 10-N falling object encounters 4 N of air resistance. The
net force on the object is
✓✓ 6N
An apple weighs 1 N. When held at rest above your
head, the net force on the apple is
✓✓ 0N
