Phys 165 Module 5 Exam Solved
Correctly To Score A+
What is the product of a force and the time interval over which it acts? CORRECT
ANSWERS Impulse (J)
On a graph of force versus time interval, how can you find the amount of impulse
exerted by the force?
A) Find the maximum y value
B) Find the maximum x value
C) Find the area under the curve
D) None of the above CORRECT ANSWERS C) Find the area under the curve
What is the product of an objects mass and velocity called CORRECT ANSWERS
Momentum (kgm/s)
What is the symbol for momentum CORRECT ANSWERS Kgm/s
During a physics experiment, a raw egg is dropped from a two-story building encased in
materials that cushion the impact with the concrete sidewalk below. This process is
repeated with different materials encasing the egg. Successful trials prevent the egg
from breaking upon impact with the sidewalk. Assume that in all trials the mass of the
apparatus and the speed upon impact are the same. Answer the following questions
about this experiment.
True or False: The magnitude of the force exerted on the egg upon impact with the
sidewalk during all trials is the same regardless of if the egg breaks or not. CORRECT
ANSWERS True
True or False: The Impulse-Momentum Theorem states that the net impulse exerted on
a system is greater than the change in momentum of the system. CORRECT
ANSWERS False (its equal)
In what kind of system is it BEST to use the Impulse-Momentum Theorem?
A) In a closed system only
B) In an open system only
C) In any open or closed system
D) There are no systems in which the Law of Conservation of Momentum applies
CORRECT ANSWERS A) In an open system only
In which of the following types of collisions can momentum be conserved, as long as the
system is closed?
a) Elastic
Correctly To Score A+
What is the product of a force and the time interval over which it acts? CORRECT
ANSWERS Impulse (J)
On a graph of force versus time interval, how can you find the amount of impulse
exerted by the force?
A) Find the maximum y value
B) Find the maximum x value
C) Find the area under the curve
D) None of the above CORRECT ANSWERS C) Find the area under the curve
What is the product of an objects mass and velocity called CORRECT ANSWERS
Momentum (kgm/s)
What is the symbol for momentum CORRECT ANSWERS Kgm/s
During a physics experiment, a raw egg is dropped from a two-story building encased in
materials that cushion the impact with the concrete sidewalk below. This process is
repeated with different materials encasing the egg. Successful trials prevent the egg
from breaking upon impact with the sidewalk. Assume that in all trials the mass of the
apparatus and the speed upon impact are the same. Answer the following questions
about this experiment.
True or False: The magnitude of the force exerted on the egg upon impact with the
sidewalk during all trials is the same regardless of if the egg breaks or not. CORRECT
ANSWERS True
True or False: The Impulse-Momentum Theorem states that the net impulse exerted on
a system is greater than the change in momentum of the system. CORRECT
ANSWERS False (its equal)
In what kind of system is it BEST to use the Impulse-Momentum Theorem?
A) In a closed system only
B) In an open system only
C) In any open or closed system
D) There are no systems in which the Law of Conservation of Momentum applies
CORRECT ANSWERS A) In an open system only
In which of the following types of collisions can momentum be conserved, as long as the
system is closed?
a) Elastic
