Physics Assessment C165 Integrated
Physical Science WGU – Actual
Questions & Answers 100% Guarantee
Pass
A car decreases its speed from 40 miles per hour to 20 miles per hour. Its linear
momentum _____________________. - ------------ANS: is half as much
A car is moving forward and its brakes are being applied. Which of the following is
true?
A. The car's velocity is forward, and its acceleration is forward.
B. The car's velocity is backward, and its acceleration is forward.
C. The car's velocity is backward, and its acceleration is backward.
D. The car's velocity is forward, and its acceleration is backward. - ------------ANS: D.
The car's velocity is forward, and its acceleration is backward.
A car moves forward along a horizontal road in a straight line at constant speed. The
net force on the car is _______. - ------------ANS: zero
A jet is flying overhead produces sound waves that consist of ___________ that
is/are transported from the jet to your ears. - ------------ANS: energy
A train traveling 50 mph slows down and stops once the brakes are applied. The
train's kinetic energy ________________________________________. -
------------ANS: changes to the thermal energy of the brakes.
A truck increases its speed. What happens to its kinetic energy?
A. not enough information
B. it decreases
C. it increases - ------------ANS: C. it increases
An unstretched spring is slowly from street level to the top of a tall building.
Compared to street level, the spring has more
_______________________________________.
Suppose you drop the spring from the top of the building and it toward the street
below. Neglecting non conservative forces, such as air resistance, the kinetic energy
of the spring at the instant just before it hits the street is
________________________________________.
Physical Science WGU – Actual
Questions & Answers 100% Guarantee
Pass
A car decreases its speed from 40 miles per hour to 20 miles per hour. Its linear
momentum _____________________. - ------------ANS: is half as much
A car is moving forward and its brakes are being applied. Which of the following is
true?
A. The car's velocity is forward, and its acceleration is forward.
B. The car's velocity is backward, and its acceleration is forward.
C. The car's velocity is backward, and its acceleration is backward.
D. The car's velocity is forward, and its acceleration is backward. - ------------ANS: D.
The car's velocity is forward, and its acceleration is backward.
A car moves forward along a horizontal road in a straight line at constant speed. The
net force on the car is _______. - ------------ANS: zero
A jet is flying overhead produces sound waves that consist of ___________ that
is/are transported from the jet to your ears. - ------------ANS: energy
A train traveling 50 mph slows down and stops once the brakes are applied. The
train's kinetic energy ________________________________________. -
------------ANS: changes to the thermal energy of the brakes.
A truck increases its speed. What happens to its kinetic energy?
A. not enough information
B. it decreases
C. it increases - ------------ANS: C. it increases
An unstretched spring is slowly from street level to the top of a tall building.
Compared to street level, the spring has more
_______________________________________.
Suppose you drop the spring from the top of the building and it toward the street
below. Neglecting non conservative forces, such as air resistance, the kinetic energy
of the spring at the instant just before it hits the street is
________________________________________.
