WorksheetsPHYS 161 / lab 3
Total questions: 10
Worksheet time: 3mins
What was the ballistic pendulum historically used to measure?
The velocity of a projectile
The mass of a swinging pendulum
The height of a falling object
The acceleration due to gravity
In what type of energy is kinetic energy primarily converted during the inelastic collision in a ballistic pendulum experiment?
Elastic potential energy
Gravitational potential energy
Electric energy
Thermal (internal) energy
What measurement is most important to determine the velocity of the projectile using the ballistic pendulum method?
The angle of the pendulum swing
The mass of the pendulum only
The maximum vertical height of the pendulum's swing
The width of the pendulum arc
How do you find the balance point of a pendulum-ball system?
By suspending the system from its center of mass so it hangs still without rotatin
By placing the ball at the lowest point of the pendulum
By measuring the length of the string only
By swinging the pendulum and measuring its period
How many motion sensors are used in part 2 of ballistic pendulum experiment?
one
two
three
four
Two carts on a frictionless track are placed with magnetic sides facing each other and given slight pushes toward one another. Cart A and Cart B have equal masses. What is most likely to occur in a perfectly elastic collision?
The carts stick together and move with a common velocity.
The carts come to rest after the collision.
The carts bounce off each other and move away with the same speeds they had before the collision, but in opposite directions.
One cart transfers all its momentum to the other and remains at rest while the other moves with double the speed.
Two carts with different masses collide on a frictionless track. Cart A has mass mA and cart B mB (mass mB > mA ) are pushed towards each other. Which statement is true if the collision is perfectly inelastic?
The two carts stick together and move with a common velocity after the collision.
The total kinetic energy after the collision is the same as before.
Both carts bounce off each other with equal speed in opposite directions.
The lighter cart reverses direction while the heavier cart remains at rest.
How does this experiment help study elastic and inelastic collisions?
By measuring the temperature change after collision
By analyzing the velocities before and after collision to see if kinetic energy is conserved
By observing the color change of the colliding objects
By measuring the electrical charge generated during collision
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