RIO SALADO PHY 111 FINAL WITH
QUESTIONS AND ANSWERS 100%
VERIFIED
A simple pendulum has a period T on the Earth. If it were used on
Planet X, where the acceleration due to gravity is 3 times what it is on
Earth, its period would be which of the following? - correct answer_ T√
(1/3)
For an object undergoing simple harmonic motion, - correct answer_
the acceleration is greatest when the displacement is greatest
Mechanical energy is not valid in which of the following cases? - correct
answer_ A block sliding down a rough inclined plane
If the force on an object is doubled, which of the following statements
is correct? - correct answer_ Acceleration is increased by two times.
What is the most accurate statement concerning work? - correct
answer_ Work on a system causes a change in the energy of the
system.
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What is the most accurate statement concerning momentum? - correct
answer_ Like other vector quantities, momentum can be resolved into
perpendicular components.
What is the most accurate statement concerning gravitational potential
energy? - correct answer_ The gravitational potential energy (PE) is the
energy an object has due to its position in a gravitational field.
What is the most accurate statement concerning momentum and
impulse? - correct answer_ The net force on an object is equal to the
change in momentum of the object wrt time.
What is the most accurate statement concerning angular displacement?
- correct answer_ Angular displacement must be expressed in radians
for rotational kinematic equations.
What is the most accurate statement concerning angular momentum? -
correct answer_ Angular momentum is the product of moment of
inertia and angular velocity.