AP Physics 1 All Units 1-7 Progress Check A and B each, Accurately Answered
and Updated Lately Spring 2025
A group of students must conduct an experiment to determine how the location of an applied
force on a classroom door affects the rotational motion of the door. The rotational inertia of the
door about its hinges is known. The initial angular velocity of the door is zero.
Which of the following lists what measuring devices the students need and the measurements
they should take to collect the necessary data to test the relationship between a torque exerted on
the door and the change in angular velocity of that object about the hinges of the door? Justify
your selection. - (answers)A stopwatch to measure the time interval during which the force is
applied, a force probe to measure the applied force on the door, a protractor to measure the
angular displacement of the door, and a meterstick to measure the radial distance from the door's
hinges to the location where the force is applied.
吗？还是指某个特定的词或概念
A group of students must conduct？ an experiment to determine how the location of an applied
force on a classroom door affects the rotational motion of the door. The rotational inertia of the
door about its hinges is known. The initial angular velocity of the door is zero.
The students must determine how to test the relationship between a torque exerted on the door
and the change in the angular velocity of the door. All frictional forces are considered to be
negligible. How should the experiment be conducted to test the relationship between the torque
exerted on the door and the change in the door's angular velocity in a way that minimizes
experimental uncertainty? - (answers)The students should perform several trials, applying the
same force at different horizontal distances from the hinges.
A group of students must conduct an experiment to determine how the location of an applied
force on a classroom door affects the rotational motion of the door. The rotational inertia of the
door about its hinges is known. The initial angular velocity of the door is zero.
The students conduct the experiment and gather data about the net torque exerted on the door and
angular acceleration of the door for several trials. They create a graph of the door's angular
acceleration as a function of the net torque and sketch a best-fit line through the data. How can
the students analyze the data to determine the rotational inertia of the door about its hinges? -
(answers)Determine the inverse of the slope of the best-fit line.
A point on the edge of a disk rotates around the center of the disk with an initial angular velocity
of 3rad/s clockwise. The graph shows the point's angular acceleration as a function of time. The
positive direction is considered to be counterclockwise. All frictional forces are considered to be
, negligible. - (answers)Determine the area bound by the line and the horizontal axis from 0s to 2s
, because this area represents the change in the angular velocity of the point on disk.
A point on the edge of a disk rotates around the center of the disk with an initial angular velocity
of 3rad/s clockwise. The graph shows the point's angular acceleration as a function of time. The
positive direction is considered to be counterclockwise. All frictional forces are considered to be
negligible.
Which of the following graphs qualitatively represents the angular velocity ω of the point on the
disk as a function of time t between 0s to 2s? - (answers)| /
|/
|_____/__
|/
|/ 吗？还是指某个特定的词或概念
？
A point on the edge of a disk rotates around the center of the disk with an initial angular velocity
of 3rad/s clockwise. The graph shows the point's angular acceleration as a function of time. The
positive direction is considered to be counterclockwise. All frictional forces are considered to be
negligible.
What is the angular displacement of the point after 10s? - (answers)330 radians
A uniform rod is at rest on a horizontal surface. A student may launch a sphere of clay toward the
rod along one of the three paths shown in the figure. Path X and path Z are directed toward the
center of mass of the rod. In each case, the sphere of clay is launched with the same linear speed
and sticks to the rod. In each case, the time of collision between the sphere of clay and the rod is
time t0. A pivot is fixed to the end of the rod, representing the point at which the rod or clay-rod
system may rotate. Frictional forces are considered to be negligible.
A sphere of clay travels toward the rod along path Z. A student must predict what will happen to
the linear momentum and the angular momentum of the rod-sphere system as a result of the
collision. Which of the following correctly predicts the change, if any, of these quantities? -
(answers)linear:decreases; angular: no change
A uniform rod is at rest on a horizontal surface. A student may launch a sphere of clay toward the
rod along one of the three paths shown in the figure. Path X and path Z are directed toward the
center of mass of the rod. In each case, the sphere of clay is launched with the same linear speed
and sticks to the rod. In each case, the time of collision between the sphere of clay and the rod is
and Updated Lately Spring 2025
A group of students must conduct an experiment to determine how the location of an applied
force on a classroom door affects the rotational motion of the door. The rotational inertia of the
door about its hinges is known. The initial angular velocity of the door is zero.
Which of the following lists what measuring devices the students need and the measurements
they should take to collect the necessary data to test the relationship between a torque exerted on
the door and the change in angular velocity of that object about the hinges of the door? Justify
your selection. - (answers)A stopwatch to measure the time interval during which the force is
applied, a force probe to measure the applied force on the door, a protractor to measure the
angular displacement of the door, and a meterstick to measure the radial distance from the door's
hinges to the location where the force is applied.
吗？还是指某个特定的词或概念
A group of students must conduct？ an experiment to determine how the location of an applied
force on a classroom door affects the rotational motion of the door. The rotational inertia of the
door about its hinges is known. The initial angular velocity of the door is zero.
The students must determine how to test the relationship between a torque exerted on the door
and the change in the angular velocity of the door. All frictional forces are considered to be
negligible. How should the experiment be conducted to test the relationship between the torque
exerted on the door and the change in the door's angular velocity in a way that minimizes
experimental uncertainty? - (answers)The students should perform several trials, applying the
same force at different horizontal distances from the hinges.
A group of students must conduct an experiment to determine how the location of an applied
force on a classroom door affects the rotational motion of the door. The rotational inertia of the
door about its hinges is known. The initial angular velocity of the door is zero.
The students conduct the experiment and gather data about the net torque exerted on the door and
angular acceleration of the door for several trials. They create a graph of the door's angular
acceleration as a function of the net torque and sketch a best-fit line through the data. How can
the students analyze the data to determine the rotational inertia of the door about its hinges? -
(answers)Determine the inverse of the slope of the best-fit line.
A point on the edge of a disk rotates around the center of the disk with an initial angular velocity
of 3rad/s clockwise. The graph shows the point's angular acceleration as a function of time. The
positive direction is considered to be counterclockwise. All frictional forces are considered to be
, negligible. - (answers)Determine the area bound by the line and the horizontal axis from 0s to 2s
, because this area represents the change in the angular velocity of the point on disk.
A point on the edge of a disk rotates around the center of the disk with an initial angular velocity
of 3rad/s clockwise. The graph shows the point's angular acceleration as a function of time. The
positive direction is considered to be counterclockwise. All frictional forces are considered to be
negligible.
Which of the following graphs qualitatively represents the angular velocity ω of the point on the
disk as a function of time t between 0s to 2s? - (answers)| /
|/
|_____/__
|/
|/ 吗？还是指某个特定的词或概念
？
A point on the edge of a disk rotates around the center of the disk with an initial angular velocity
of 3rad/s clockwise. The graph shows the point's angular acceleration as a function of time. The
positive direction is considered to be counterclockwise. All frictional forces are considered to be
negligible.
What is the angular displacement of the point after 10s? - (answers)330 radians
A uniform rod is at rest on a horizontal surface. A student may launch a sphere of clay toward the
rod along one of the three paths shown in the figure. Path X and path Z are directed toward the
center of mass of the rod. In each case, the sphere of clay is launched with the same linear speed
and sticks to the rod. In each case, the time of collision between the sphere of clay and the rod is
time t0. A pivot is fixed to the end of the rod, representing the point at which the rod or clay-rod
system may rotate. Frictional forces are considered to be negligible.
A sphere of clay travels toward the rod along path Z. A student must predict what will happen to
the linear momentum and the angular momentum of the rod-sphere system as a result of the
collision. Which of the following correctly predicts the change, if any, of these quantities? -
(answers)linear:decreases; angular: no change
A uniform rod is at rest on a horizontal surface. A student may launch a sphere of clay toward the
rod along one of the three paths shown in the figure. Path X and path Z are directed toward the
center of mass of the rod. In each case, the sphere of clay is launched with the same linear speed
and sticks to the rod. In each case, the time of collision between the sphere of clay and the rod is
