PHYSICS MODULE 2 UPDATED ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS
Question 1.
What is the branch of physics which is concerned with the motion of objects without regard to the
forces that affect the motion?
ANSWER
Kinematics
Question 2.
Match the physical quantity in the left column with the appropriate question in the right column.
Each choice will be used exactly once.
ANSWER
position- where is it? displacementhow far did it go? time intervalhow long did it take?
speedhow fast did it go?
Question 3.
Your place of work is 4.0 miles directly west of the post office. Your house is 3.0 miles directly north
of the post office. You live in a city where the streets all run either north-south or east-west. On your
way home from work you stop at the post office to drop of some mail. Your trip begins at 4:30 pm
and ends at 5:15 pm. Determine the following physical quantities:
a. The time interval of your trip _____
b. Your distance traveled _____
c. The magnitude of the displacement for this trip _____
d. The average speed of your trip _____
e. The magnitude of the average velocity of your trip _____
ANSWER
a) 5:15 pm - 4:30 PM = 45 min
b) 4.0 miles + 3.0 miles = 7.0 miles c) a^2+b^2=c^2,(4.0miles)^2+(3.0 d) v=Δd/Δ-
t=7.0miles/0.75hours=9.3mph e) v=Δd/Δ- t=5.0miles/0.75hours=6.7mph
Question 4.
Which statement BEST describes vectors and scalars?
1/8
, ANSWER
vectors have both magnitude and direction and scalars have only magnitude
Question 5.
A security guard walks around the perimeter of a building during one of his rounds. The distance he
travels around the building is 728 m and it takes him 517 s to complete one lap around the building.
Determine the following physical quantities:
a. His average speed _____
b. His average velocity _____
ANSWER
a. v=Δd/Δt= 728m/517s+ 1.41 m/s
b. v=Δd/Δt= 0/517s= 0, since he starts and stops at the same place the displacement is zero
Question 6.
When a truck is moving so that the distance that it travels during the first, second, and third seconds
are all the same is said to be moving at a ____________ speed.
ANSWER
uniform
Question 7.
An airplane can fly with an airspeed of 277 mph. Determine the ground speed of the airplane in the
following situations:
a. When the plane encounters a headwind of 35.0 mph. (a headwind is one blowing straight at the
airplane)
b. When the plane encounters a tailwind of 35.0 mph. (a tailwind is one blowing in the same
direction as the airplane's airspeed)
c. When the plane encounters a crosswind of 35.0 mph. (a crosswind is one blowing in a
perpendicular direction to the plane's airspeed)
ANSWER
a) 277 mph - 35.0 mph = 242 mph
b) 277 mph + 35.0 mph = 312 mph c) a^2+b^2=c^2,(277mph)^2+(35
Question 8.
2/8
QUESTIONS AND CORRECT ANSWERS
Question 1.
What is the branch of physics which is concerned with the motion of objects without regard to the
forces that affect the motion?
ANSWER
Kinematics
Question 2.
Match the physical quantity in the left column with the appropriate question in the right column.
Each choice will be used exactly once.
ANSWER
position- where is it? displacementhow far did it go? time intervalhow long did it take?
speedhow fast did it go?
Question 3.
Your place of work is 4.0 miles directly west of the post office. Your house is 3.0 miles directly north
of the post office. You live in a city where the streets all run either north-south or east-west. On your
way home from work you stop at the post office to drop of some mail. Your trip begins at 4:30 pm
and ends at 5:15 pm. Determine the following physical quantities:
a. The time interval of your trip _____
b. Your distance traveled _____
c. The magnitude of the displacement for this trip _____
d. The average speed of your trip _____
e. The magnitude of the average velocity of your trip _____
ANSWER
a) 5:15 pm - 4:30 PM = 45 min
b) 4.0 miles + 3.0 miles = 7.0 miles c) a^2+b^2=c^2,(4.0miles)^2+(3.0 d) v=Δd/Δ-
t=7.0miles/0.75hours=9.3mph e) v=Δd/Δ- t=5.0miles/0.75hours=6.7mph
Question 4.
Which statement BEST describes vectors and scalars?
1/8
, ANSWER
vectors have both magnitude and direction and scalars have only magnitude
Question 5.
A security guard walks around the perimeter of a building during one of his rounds. The distance he
travels around the building is 728 m and it takes him 517 s to complete one lap around the building.
Determine the following physical quantities:
a. His average speed _____
b. His average velocity _____
ANSWER
a. v=Δd/Δt= 728m/517s+ 1.41 m/s
b. v=Δd/Δt= 0/517s= 0, since he starts and stops at the same place the displacement is zero
Question 6.
When a truck is moving so that the distance that it travels during the first, second, and third seconds
are all the same is said to be moving at a ____________ speed.
ANSWER
uniform
Question 7.
An airplane can fly with an airspeed of 277 mph. Determine the ground speed of the airplane in the
following situations:
a. When the plane encounters a headwind of 35.0 mph. (a headwind is one blowing straight at the
airplane)
b. When the plane encounters a tailwind of 35.0 mph. (a tailwind is one blowing in the same
direction as the airplane's airspeed)
c. When the plane encounters a crosswind of 35.0 mph. (a crosswind is one blowing in a
perpendicular direction to the plane's airspeed)
ANSWER
a) 277 mph - 35.0 mph = 242 mph
b) 277 mph + 35.0 mph = 312 mph c) a^2+b^2=c^2,(277mph)^2+(35
Question 8.
2/8
