Conceptual Physics Ch 8 Exam
Questions & Answers (Grade A+)
A cannon fires a cannonball horizontally. Right after the cannonball
is fired, the magnitude of the momentum of the cannonball is
________ that of the cannon. Ignore friction between the cannon
and the ground.
A) greater than
B) less than
C) equal to -
correct answer ✅C) equal to
A green ball is moving to the right with an initial speed of 5 m/s. It
collides head-on with a yellow ball, initially at rest. Both balls have
the same mass. After the collision,
A) the green ball is stationary and the yellow ball moves to the right
with a speed of 5 m/s
B) The green ball moves to the left with a speed of 2 m/s and the
yellow ball moves to the right with a speed of 3 m/s.
C) The green ball moves to the right with a speed of 1 m/s and the
yellow ball moves to the right with a speed of 4 m/s. -
correct answer ✅A) the green ball is stationary and the yellow ball
moves to the right with a speed of 5 m/s
, Conceptual Physics Ch 8 Exam
Questions & Answers (Grade A+)
A green truck is moving to the right with a speed of 10 m/s. A red
truck is moving to the right with a speed of 2 m/s. The mass of the
two trucks are equal. If the two trucks have an inelastic collision,
what is the speed of the two trucks right after the collision?
A) 6 m/s
B) 0 m/s
C) 12 m/s -
correct answer ✅A) 6 m/s
A green truck is moving to the right. A red truck is moving to the
left with a speed of 6 m/s. The mass of the red truck is 1,000 kg and
the mass of the green truck is 3,000 kg. How fast must the green
truck be moving such that ,if it collides head-on with the red truck
and the two trucks stick together, the final velocity of the two
trucks is zero?
A) 2 m/s
B) 1 m/s
C) 6 m/s -
correct answer ✅A) 2 m/s
An orange car is moving eastward with a speed of 10 m/s. A purple
car is moving northward with the same speed. The two cars
Questions & Answers (Grade A+)
A cannon fires a cannonball horizontally. Right after the cannonball
is fired, the magnitude of the momentum of the cannonball is
________ that of the cannon. Ignore friction between the cannon
and the ground.
A) greater than
B) less than
C) equal to -
correct answer ✅C) equal to
A green ball is moving to the right with an initial speed of 5 m/s. It
collides head-on with a yellow ball, initially at rest. Both balls have
the same mass. After the collision,
A) the green ball is stationary and the yellow ball moves to the right
with a speed of 5 m/s
B) The green ball moves to the left with a speed of 2 m/s and the
yellow ball moves to the right with a speed of 3 m/s.
C) The green ball moves to the right with a speed of 1 m/s and the
yellow ball moves to the right with a speed of 4 m/s. -
correct answer ✅A) the green ball is stationary and the yellow ball
moves to the right with a speed of 5 m/s
, Conceptual Physics Ch 8 Exam
Questions & Answers (Grade A+)
A green truck is moving to the right with a speed of 10 m/s. A red
truck is moving to the right with a speed of 2 m/s. The mass of the
two trucks are equal. If the two trucks have an inelastic collision,
what is the speed of the two trucks right after the collision?
A) 6 m/s
B) 0 m/s
C) 12 m/s -
correct answer ✅A) 6 m/s
A green truck is moving to the right. A red truck is moving to the
left with a speed of 6 m/s. The mass of the red truck is 1,000 kg and
the mass of the green truck is 3,000 kg. How fast must the green
truck be moving such that ,if it collides head-on with the red truck
and the two trucks stick together, the final velocity of the two
trucks is zero?
A) 2 m/s
B) 1 m/s
C) 6 m/s -
correct answer ✅A) 2 m/s
An orange car is moving eastward with a speed of 10 m/s. A purple
car is moving northward with the same speed. The two cars
