PHY 114|85 lab final Review Questions With Answers
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Course
PHY 114
Institution
PHY 114
An object of mass is attached to a spring of constant that rests on an inclined plane of angle A. If the spring is elongated by x the force with which the spring is pulling the object is equal to - ️️kx
The period of a vertically oscillating ideal spring of constant k and mass m is the same as...
An object of mass is attached to a spring of constant that rests on an inclined
plane of angle A. If the spring is elongated by x the force with which the
spring is pulling the object is equal to - ✔ ✔ kx
The period of a vertically oscillating ideal spring of constant k and mass m is
the same as a horizontally oscillating ideal spring of the same constant and
mass. This statement is - ✔ ✔ true
The period of an object attached to a spring oscillating on an inclined plane
(no friction) depends on - ✔ ✔ the spring's constant
The reason momentum is conserved during a collision between two equal
masses having the same speed (objects are moving toward each other) is
because - ✔ ✔ the magnitudes of the internal forces during the
collision are equal
The reason momentum is conserved during a collision between two equal
masses having the same speed (objects are moving towards each other) is
because - ✔ ✔ the magnitudes of the internal forces during the
collision are equal
The result from our experiment with the cart collision is that the total kinetic
energies of both carts before and after the collision are - ✔ ✔ Not equal
The result from our experiment with the cart collision is that the total kinetic
energies of both carts before and after the collision are - ✔ ✔ Not equal
, The rotational kinetic energy of an object depends on the object's geometrical
dimensions: This statement is - ✔ ✔ true
The simple pendulum's period is determined by - ✔ ✔ length and gravity
The small-angle approximation is valid for a simple pendulum only and is not
required in the derivation of the physical pendulum period. This statement is -
✔ ✔ false
The speed of the rotating canister had no effect on the curvature of the water
surface. This statement is - ✔ ✔ Incorrect
The sum of the forces acting on an object along the x-axis is zero. The sum of
the forces acting on the same object along the y-axis is not zero. We can
safely assume that the acceleration of the object - ✔ ✔ will be non-
zero along the y-axis
A cylinder is pushed and then rolls on a horizontal surface. One can argue
that the static friction coefficient between the cylinder and the surface is -
✔ ✔ non-zero
One object slides down a plane of length L=H/sin(x) where H is the plane's
height and x its angle (no friction). Finally, it reaches the bottom of the plane
with speed u1.Another object is free-falling from the same height H and lands
with speed u2. The two speeds follow the relationship - ✔ ✔ 1=u2
One of the famous pseudo-forces is the Coriolis force. The Coriolis force is
always included in flight calculations, missile ballistics, etc. A student argues
that this is also the reason water drains down a sink counter-clockwise
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