Momentum and Center of Mass

Quiz
•
Physics
•
11th - 12th Grade
•
Hard
Standards-aligned
Daniel Salamon
Used 52+ times
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An object of mass m =2 kg experiences a force as shown in the force-time graph. Over the 5 seconds, what is the total change in momentum?
35 kg m/s
70 kg m/s
-35 kg m/s
-70 kg m/s
None of these
Tags
NGSS.HS-PS2-1
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A cannon is mounted on a cart, and carrying a cannonball. The total mass of the cart, cannon, and ball is M, and the cart is rolling with no friction at a velocity v in the positive x-direction as shown above. The ball, of mass m, is fired with a velocity of vball in the positive x direction. What is the velocity of the cart and cannon after the ball is fired?
(Mv-mvball)/(M-mball)
(Mv-mvball)/M
(v-mvball)/mball
(Mv+mvball)/(M-mball)
(-Mv-mvball)/(M+mball)
Tags
NGSS.HS-PS2-1
NGSS.HS-PS2-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a laboratory experiment, a cart rolling frictionless across a table collides with a sensor that indicates both the net force acting on the cart during the collision and the time over which the collision occurred. Based on this information, one can calculate:
the acceleration of the cart
the momentum of the cart
the mass of the cart
the change in kinetic energy
the change in momentum of the cart
Tags
NGSS.HS-PS2-1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An air track glider of mass M is built, consisting of two smaller connected gliders with a small explosive charge between them. The glider is traveling along a frictionless rail at 2 m/s to the right when the charge is detonated, causing the small glider with mass 1/4 M to move off to the right at 5 m/s. What is the final velocity of the second glider?
4 m/s to the left
2m/s to the left
1 m/s to the left
0 m/s
1 m/s to the right
Tags
NGSS.HS-PS2-1
NGSS.HS-PS2-2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A billiard ball hits the side of the pool table at an angle shown and bounces away at the same angle and same speed. What is the direction of the net change in momentum of the billiard ball?
Northeast
East
Southeast
South
Southwest
Tags
NGSS.HS-PS2-2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A force acting on an object varies as a function of time according to the equation F=kt2 where k is a constant. If the object had an initial momentum of 0 at time t=0, what is the momentum of the object at time t?
2t
2kt
(1/2)kt3
(1/3)kt3
(1/3)kt2
Tags
NGSS.HS-PS2-1
NGSS.HS-PS2-2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Two ice skaters of mass 30 kg and 80 kg are skating across the surface of a frozen lake on a collision course with respective velocities of 2 m/s in a general north direction and 1 m/s generally west as shown. After they collide, the pair of skaters move off with a momentum of 100 kg m/s in a direction north of west. How much kinetic energy was lost in the collision?
0 J
110 J
55 J
70 J
120 J
Tags
NGSS.HS-PS2-2
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