1. Which graph represents the relationship between final velocity of a dropped baseball, before striking the ground, and the starting height of the baseball?(1 point)
Responses
The question is asking for a graph that represents the relationship between the final velocity of a dropped baseball and the starting height of the baseball. Without the provided options, it is not possible to determine which graph represents this relationship.
4. In the diagram below, two objects of the same size and mass are released from rest at the starting position. Object 1 was released before Object 2 was released. The diagram below shows the positions of Objects 1 and 2 a short time after both were released.
Which object in the figure has the least amount of kinetic energy?
(1 point)
Responses
Object 1
Object 1
Object 2
Object 2
Both objects have the same amount of kinetic energy.
Both objects have the same amount of kinetic energy.
Neither object has any kinetic energy
Neither object has any kinetic energy.
Since both objects were released from rest, they have no initial speed or velocity. Therefore, they do not have any kinetic energy at the shown positions.
are you sure
I apologize for the confusion. Given that both objects were released from rest and have the same size and mass, they would have the same amount of kinetic energy when they are in motion. Therefore, the correct response is "Both objects have the same amount of kinetic energy."
5. An object’s gravitational potential energy depends on the object’s mass, the strength of the gravitational field, and what other variable?(1 point)
Responses
the shape of the object
the shape of the object
the object's height from the ground
the object's height from the ground
the speed of the object
the speed of the object
the color of the object
the color of the object
The correct response is "the object's height from the ground." Gravitational potential energy depends on the mass of the object, the strength of the gravitational field, and the object's height from the ground. The shape, speed, and color of the object do not affect its gravitational potential energy.
6. If you are at an amusement park and you ride a slingshot, how does your potential energy compare to your kinetic energy at the top of the shot?
(1 point)
Responses
The kinetic energy is less than potential energy.
The kinetic energy is less than potential energy.
Kinetic energy is greater than potential energy.
Kinetic energy is greater than potential energy.
The kinetic energy and potential energy are the same.
The kinetic energy and potential energy are the same.
The kinetic energy is twice the amount of potential energy.
The correct response is "The kinetic energy is less than potential energy."
At the top of the slingshot ride, the person's potential energy is at its maximum because they are at the highest point. However, their kinetic energy is at its minimum because they have momentarily come to a stop before being launched downwards. Therefore, the potential energy is greater than the kinetic energy at the top of the shot.
To determine the graph that represents the relationship between the final velocity of a dropped baseball and the starting height, we need to consider the physics principles involved.
The final velocity of a dropped object before striking the ground can be determined using the equation: v^2 = u^2 + 2as, where v is the final velocity, u is the initial velocity (in this case, 0 since the baseball is dropped), a is acceleration due to gravity (approximately 9.8 m/s^2), and s is the vertical distance traveled.
From the equation, we can see that the final velocity depends on the vertical distance traveled, which is the starting height of the baseball. As the starting height increases, the distance traveled also increases, leading to a higher final velocity.
Therefore, the graph that represents the relationship between the final velocity and starting height should show an increasing trend. The rate of increase may not be linear, as the acceleration due to gravity is constant. It could be a curve that steepens as the starting height increases.
To confirm the specific shape of the graph, numerical calculations or experimental data might be necessary.