Physics Lab Exam #1 ACTUAL UPDATED QUESTIONS AND CORRECT ANSWERS
6 mins, 100s, 0.01 hr Rank the following time intervals, with the largest at the top and the smallest at the
bottom:
-6 min
-0.01 hr
-100s
0.01km, 6m, 100cm Rank the following distances, with the largest at the top and the smallest at the
bottom:
-0.01km
-100cm
-6m
6m/s, 120m/min, 0.36km/hr Rank the following speeds, with the largest at the top and the smallest at the
bottom:
-6m/s
-120m/min
-0.36km/hr
The apple's acceleration magnitude is equal to the An apple is larger than and weights more than a grape. If both objects are in free
grape's acceleration magnitude. fall, then which statement is true?
Only the gravitational force is assumed to act. Which force (or forces) is (or are) assumed to act on an object when it is in free
fall?
3600 frames/hr Which of the following is equal to 60 frames/min?
average speed If two objects have the same initial position at the same initial time, and the same
final position at the same final time, then which speed would always be the same
for both?
40km/hr A train travelled a total distance of 120 km. During the first 60 km, it travelled at an
average speed of 30 km/hr. During the last 60 km, it travelled at an average speed
of 60 km/hr. What was its average speed over the total distance of 120 km?
40km/hr A bus travelled a total distance of 80 km. During the first hour, it travelled at an
average speed of 30 km/hr. During the last hour, it travelled at an average speed
of 50 km/hr. What was its average speed over the total distance of 80 km?
2.00s An object is dropped from rest and undergoes free-fall. How much time does it
take for the object to fall 19.6 m? Use g = 9.80 m/s^2 as the magnitude of the
acceleration due to gravity.
78.4m An object is dropped from rest and undergoes free-fall. How far does the object
fall in 4.00 s? Use g = 9.80 m/s2g = 9.80 m/s2 as the magnitude of the acceleration
due to gravity.
parabola opening up For this question, down is defined as the positive direction and up is defined as
the negative direction. Given these definitions, what would be the shape of the y
vs. t graph for the apple?
, 24.5m/s An object undergoes free-fall. Its initial speed is 4.90 m/s. What is its final speed
after falling for 2.00 s? Use g = 9.80 m/s^2 as the magnitude of the acceleration
due to gravity.
1.50s An object undergoes free-fall. Its initial speed is 4.90 m/s. How much time
elapsed if its final speed is 19.6 m/s? Use g = 9.80 m/s^2 as the magnitude of the
acceleration due to gravity.
parabola opening up For this question, down is defined as the positive direction and up is defined as
the negative direction. Given these definitions, what would be the shape of the vy
vs. t graph for the apple?
acceleration In the projectile motion lab, which variable is constant?
6 mins, 100s, 0.01 hr Rank the following time intervals, with the largest at the top and the smallest at the
bottom:
-6 min
-0.01 hr
-100s
0.01km, 6m, 100cm Rank the following distances, with the largest at the top and the smallest at the
bottom:
-0.01km
-100cm
-6m
6m/s, 120m/min, 0.36km/hr Rank the following speeds, with the largest at the top and the smallest at the
bottom:
-6m/s
-120m/min
-0.36km/hr
The apple's acceleration magnitude is equal to the An apple is larger than and weights more than a grape. If both objects are in free
grape's acceleration magnitude. fall, then which statement is true?
Only the gravitational force is assumed to act. Which force (or forces) is (or are) assumed to act on an object when it is in free
fall?
3600 frames/hr Which of the following is equal to 60 frames/min?
average speed If two objects have the same initial position at the same initial time, and the same
final position at the same final time, then which speed would always be the same
for both?
40km/hr A train travelled a total distance of 120 km. During the first 60 km, it travelled at an
average speed of 30 km/hr. During the last 60 km, it travelled at an average speed
of 60 km/hr. What was its average speed over the total distance of 120 km?
40km/hr A bus travelled a total distance of 80 km. During the first hour, it travelled at an
average speed of 30 km/hr. During the last hour, it travelled at an average speed
of 50 km/hr. What was its average speed over the total distance of 80 km?
2.00s An object is dropped from rest and undergoes free-fall. How much time does it
take for the object to fall 19.6 m? Use g = 9.80 m/s^2 as the magnitude of the
acceleration due to gravity.
78.4m An object is dropped from rest and undergoes free-fall. How far does the object
fall in 4.00 s? Use g = 9.80 m/s2g = 9.80 m/s2 as the magnitude of the acceleration
due to gravity.
parabola opening up For this question, down is defined as the positive direction and up is defined as
the negative direction. Given these definitions, what would be the shape of the y
vs. t graph for the apple?
, 24.5m/s An object undergoes free-fall. Its initial speed is 4.90 m/s. What is its final speed
after falling for 2.00 s? Use g = 9.80 m/s^2 as the magnitude of the acceleration
due to gravity.
1.50s An object undergoes free-fall. Its initial speed is 4.90 m/s. How much time
elapsed if its final speed is 19.6 m/s? Use g = 9.80 m/s^2 as the magnitude of the
acceleration due to gravity.
parabola opening up For this question, down is defined as the positive direction and up is defined as
the negative direction. Given these definitions, what would be the shape of the vy
vs. t graph for the apple?
acceleration In the projectile motion lab, which variable is constant?
