EXAM: WGU INTEGRATED PHYSICAL
SCIENCES C165 – PA 2025/2026 WITH
CORRECT/ACCURATE ANSWERS
What energy conversion occurs in a car's engine?
Kinetic energy is converted into elastic potential energy.
Gravitational potential energy is converted into electrical
potential energy.
Chemical potential energy is converted into thermal energy.
Thermal energy is converted into gravitational potential energy. -
CORRECT ANSWERS- Chemical potential energy is converted into
thermal energy.
Which kind of electromagnetic radiation carries information to and
from a cell phone when it is used for a phone call?
Microwaves
X-rays
Infrared radiation
Ultraviolet radiation - CORRECT ANSWERS- Microwaves
,A cashier who has been handed a hundred-dollar bill may check
its authenticity by holding it under a special lamp that emits
electromagnetic radiation mostly at wavelengths slightly shorter
than visible light. The electromagnetic radiation makes a pattern
of previously invisible markings on the bill glow brightly, or
fluoresce.
Which kind of electromagnetic radiation does the lamp emit to
produce this effect?
Microwaves
Infrared radiation
Ultraviolet radiation
X-rays - CORRECT ANSWERS- Ultraviolet radiation
After natural disasters, first responders can locate survivors in the
rubble by using thermal detectors. Because the victims' bodies
are warmer than their surroundings, the difference in temperature
is detected by electromagnetic waves.
Which part of the electromagnetic spectrum is being detected?
Radio waves
Infrared radiation
Ultraviolet radiation
X-rays - CORRECT ANSWERS- Infrared radiation
, Airport security uses electromagnetic radiation to form images of
objects inside passenger luggage.
Which type of electromagnetic radiation is used in this way?
Radio waves
Visible light
Ultraviolet radiation
X-rays - CORRECT ANSWERS- X-rays
Which type of wave has a longitudinal motion?
Gamma waves
Transverse waves
Sound waves
Light waves - CORRECT ANSWERS- Sound waves
Which is a characteristic of electromagnetic waves?
Transverse wave motion
Travels faster through water than air
Longitudinal wave motion
SCIENCES C165 – PA 2025/2026 WITH
CORRECT/ACCURATE ANSWERS
What energy conversion occurs in a car's engine?
Kinetic energy is converted into elastic potential energy.
Gravitational potential energy is converted into electrical
potential energy.
Chemical potential energy is converted into thermal energy.
Thermal energy is converted into gravitational potential energy. -
CORRECT ANSWERS- Chemical potential energy is converted into
thermal energy.
Which kind of electromagnetic radiation carries information to and
from a cell phone when it is used for a phone call?
Microwaves
X-rays
Infrared radiation
Ultraviolet radiation - CORRECT ANSWERS- Microwaves
,A cashier who has been handed a hundred-dollar bill may check
its authenticity by holding it under a special lamp that emits
electromagnetic radiation mostly at wavelengths slightly shorter
than visible light. The electromagnetic radiation makes a pattern
of previously invisible markings on the bill glow brightly, or
fluoresce.
Which kind of electromagnetic radiation does the lamp emit to
produce this effect?
Microwaves
Infrared radiation
Ultraviolet radiation
X-rays - CORRECT ANSWERS- Ultraviolet radiation
After natural disasters, first responders can locate survivors in the
rubble by using thermal detectors. Because the victims' bodies
are warmer than their surroundings, the difference in temperature
is detected by electromagnetic waves.
Which part of the electromagnetic spectrum is being detected?
Radio waves
Infrared radiation
Ultraviolet radiation
X-rays - CORRECT ANSWERS- Infrared radiation
, Airport security uses electromagnetic radiation to form images of
objects inside passenger luggage.
Which type of electromagnetic radiation is used in this way?
Radio waves
Visible light
Ultraviolet radiation
X-rays - CORRECT ANSWERS- X-rays
Which type of wave has a longitudinal motion?
Gamma waves
Transverse waves
Sound waves
Light waves - CORRECT ANSWERS- Sound waves
Which is a characteristic of electromagnetic waves?
Transverse wave motion
Travels faster through water than air
Longitudinal wave motion
