P155- Final Exam nEwEst 2025/2026 with ComPlEtE
QuEstions and CorrECt answErs |alrEady GradEd
a+||Brand nEw VErsion!!!!
For the same situation described above, suppose during that same time period the dry cell
battery transfers 250 joules of energy to the buzzer. Assume the buzzer has an efficiency of 60%.
How much energy does the buzzer transfer to the surroundings to increase their thermal energy
during the same period? - CorrECt answEr-100 Joules
Contact Push/Pull (CPP) - CorrECt answEr-Objects in contact push or pull on each other
Heat Conduction (HC) - CorrECt answEr-Objects in contact have different temperatures
Infrared Radiations (IR) - CorrECt answEr-Non-touching objects have different temperatures
Convection (Con) - CorrECt answEr-Fluid (liquid or gas) flows between non-touching objects
with different temperatures.
Heat Interactions (HI) - CorrECt answEr-A collective name used when at least two of the HC,
IR, and Con are occurring between objects at the same time.
What can you conclude about every during the time that Jillian is winding the spring and during
the times that the car is slowing to stop on the carpet? - CorrECt answEr-When Jillian winds
the spring, energy is not being created, but instead is just being transferred from her to the car;
, and when the car is slowing down to a stop, energy is not being lost to friction, but instead is
just being transferred from the car to the carpet and other things.
A ball is thrown straight up into the air. As it rises after leaving the hand, what is the relationship
between the gravitational potential energy and the kinetic energy of the ball? - CorrECt
answEr-The total energy remains constant, so as the kinetic energy decreases, the
gravitational potential energy increases by the same amount.
Suppose during a certain period of time the dry battery decreases in chemical potential energy
by 300 joules. During that same period of time, what happens to the thermal energy in the
surroundings? - CorrECt answEr-It increases by less than 300 joules.
Electric circuit (EC) - CorrECt answEr-An electrical energy source is connected to an electrical
device in a circuit.
Light - CorrECt answEr-Light moves from a source to a light receiver
Sound - CorrECt answEr-Sound moves from a source to a sound receiver
Kinetic (KE) - CorrECt answEr-Change in speed
Chemical Potential (CPE) - CorrECt answEr-Use of muscles, battery powering an electrical
device, or burning of some type of fuel (such as gasoline)
Thermal (TE) - CorrECt answEr-Change in temperature
Energy - CorrECt answEr-Used as a generic term when changes are complex or varied, such
as for light and sound receivers
QuEstions and CorrECt answErs |alrEady GradEd
a+||Brand nEw VErsion!!!!
For the same situation described above, suppose during that same time period the dry cell
battery transfers 250 joules of energy to the buzzer. Assume the buzzer has an efficiency of 60%.
How much energy does the buzzer transfer to the surroundings to increase their thermal energy
during the same period? - CorrECt answEr-100 Joules
Contact Push/Pull (CPP) - CorrECt answEr-Objects in contact push or pull on each other
Heat Conduction (HC) - CorrECt answEr-Objects in contact have different temperatures
Infrared Radiations (IR) - CorrECt answEr-Non-touching objects have different temperatures
Convection (Con) - CorrECt answEr-Fluid (liquid or gas) flows between non-touching objects
with different temperatures.
Heat Interactions (HI) - CorrECt answEr-A collective name used when at least two of the HC,
IR, and Con are occurring between objects at the same time.
What can you conclude about every during the time that Jillian is winding the spring and during
the times that the car is slowing to stop on the carpet? - CorrECt answEr-When Jillian winds
the spring, energy is not being created, but instead is just being transferred from her to the car;
, and when the car is slowing down to a stop, energy is not being lost to friction, but instead is
just being transferred from the car to the carpet and other things.
A ball is thrown straight up into the air. As it rises after leaving the hand, what is the relationship
between the gravitational potential energy and the kinetic energy of the ball? - CorrECt
answEr-The total energy remains constant, so as the kinetic energy decreases, the
gravitational potential energy increases by the same amount.
Suppose during a certain period of time the dry battery decreases in chemical potential energy
by 300 joules. During that same period of time, what happens to the thermal energy in the
surroundings? - CorrECt answEr-It increases by less than 300 joules.
Electric circuit (EC) - CorrECt answEr-An electrical energy source is connected to an electrical
device in a circuit.
Light - CorrECt answEr-Light moves from a source to a light receiver
Sound - CorrECt answEr-Sound moves from a source to a sound receiver
Kinetic (KE) - CorrECt answEr-Change in speed
Chemical Potential (CPE) - CorrECt answEr-Use of muscles, battery powering an electrical
device, or burning of some type of fuel (such as gasoline)
Thermal (TE) - CorrECt answEr-Change in temperature
Energy - CorrECt answEr-Used as a generic term when changes are complex or varied, such
as for light and sound receivers
