Released Items
Student Name:
NC Final Exam
Physics
D
SE
EA
EL
R
2018–2019
Public Schools of North Carolina
Department of Public Instruction | State Board of Education
Division of Accountability Services/North Carolina Testing Program
Copyright ã 2018 by the North Carolina Department of Public Instruction. All rights reserved.
, PHYSICS — RELEASED ITEMS
1 A small object attached to the end of a string is swung in a horizontal circle at a
constant linear speed. The linear speed of the object is doubled, and the length of
the string remains the same. What effect does the change have on the centripetal
acceleration of the object?
A It is reduced by half.
B It remains the same.
C It doubles.
D It quadruples.
D
2 Two rocks, one weighing 100 N and the other weighing 200 N, are dropped from
SE
a 50-m cliff at the same time. When both rocks are 10 m from the ground and
air friction is ignored, which is the same?
A acceleration
EA
B kinetic energy
C momentum
D potential energy
EL
3 A ball is launched at an angle of 54° to the horizontal. What determines the
amount of time the ball remains in flight? (Ignore air resistance.)
R
A initial velocity
B mass of the projectile
C centripetal acceleration
D composition of the projectile
1 Go to the next page.
, PHYSICS — RELEASED ITEMS
4 The graph below models the velocity of an object as it moves for 12 s.
Velocity vs. Time
60
Velocity (m/s)
50
40
30
20
D
10
2 10 12
SE
4 6
Time (s)
8
Which statement correctly describes the motion of the object?
EA
A The object traveled 360 m during the 12 s and had a constant acceleration
of 0 m/s/s.
B The object traveled 360 m during the 12 s and had a constant acceleration
of 5 m/s/s.
EL
C The object traveled 720 m during the 12 s and had a constant acceleration
of 0 m/s/s.
D The object traveled 720 m during the 12 s and had a constant acceleration
R
of 5 m/s/s.
5 A 25-kg bucket is being lifted by a rope. The rope will break if it experiences more
than 350 N of tension. What is the maximum upward acceleration the bucket can
experience without breaking the rope?
A 0.25 m/s/s
B 0.40 m/s/s
C 2.5 m/s/s
D 4.2 m/s/s
2 Go to the next page.
Student Name:
NC Final Exam
Physics
D
SE
EA
EL
R
2018–2019
Public Schools of North Carolina
Department of Public Instruction | State Board of Education
Division of Accountability Services/North Carolina Testing Program
Copyright ã 2018 by the North Carolina Department of Public Instruction. All rights reserved.
, PHYSICS — RELEASED ITEMS
1 A small object attached to the end of a string is swung in a horizontal circle at a
constant linear speed. The linear speed of the object is doubled, and the length of
the string remains the same. What effect does the change have on the centripetal
acceleration of the object?
A It is reduced by half.
B It remains the same.
C It doubles.
D It quadruples.
D
2 Two rocks, one weighing 100 N and the other weighing 200 N, are dropped from
SE
a 50-m cliff at the same time. When both rocks are 10 m from the ground and
air friction is ignored, which is the same?
A acceleration
EA
B kinetic energy
C momentum
D potential energy
EL
3 A ball is launched at an angle of 54° to the horizontal. What determines the
amount of time the ball remains in flight? (Ignore air resistance.)
R
A initial velocity
B mass of the projectile
C centripetal acceleration
D composition of the projectile
1 Go to the next page.
, PHYSICS — RELEASED ITEMS
4 The graph below models the velocity of an object as it moves for 12 s.
Velocity vs. Time
60
Velocity (m/s)
50
40
30
20
D
10
2 10 12
SE
4 6
Time (s)
8
Which statement correctly describes the motion of the object?
EA
A The object traveled 360 m during the 12 s and had a constant acceleration
of 0 m/s/s.
B The object traveled 360 m during the 12 s and had a constant acceleration
of 5 m/s/s.
EL
C The object traveled 720 m during the 12 s and had a constant acceleration
of 0 m/s/s.
D The object traveled 720 m during the 12 s and had a constant acceleration
R
of 5 m/s/s.
5 A 25-kg bucket is being lifted by a rope. The rope will break if it experiences more
than 350 N of tension. What is the maximum upward acceleration the bucket can
experience without breaking the rope?
A 0.25 m/s/s
B 0.40 m/s/s
C 2.5 m/s/s
D 4.2 m/s/s
2 Go to the next page.
