Tyler and Denise were playing catch. Tyler threw the ball, and Denise caught it. Position 1 is the location of the ball immediately after Tyler released it. The blue arrow shows the direction of travel. Position 7 is the location of the ball immediately before Denise caught it. Study the image and answer the questions.

Question

a. Compared to the other positions shown in the image, describe the energy of the ball at positions 1 and 7.

Kinetic energy and potential energy are both at their lowest values.

Potential energy and kinetic energy are both at their highest values.

.Kinetic energy is at its highest value, while potential energy is at its lowest value.

Potential energy is at its highest value, while kinetic energy is at its lowest value.

Answer 1

To analyze the energy of the ball at positions 1 and 7 in the scenario where Tyler throws the ball and Denise catches it, we need to consider the concepts of kinetic energy (KE) and potential energy (PE).

1. Position 1 (when Tyler releases the ball): At this position, the ball is likely at its highest point if Tyler throws it upwards or at least at a point where it has significant height compared to its release height. Thus, the potential energy of the ball is high due to its height. The kinetic energy at this point is low because the ball is just beginning to move.

2. Position 7 (just before Denise catches the ball): When the ball is approaching Denise, it is moving faster, indicating that its kinetic energy is high. However, the height of the ball may be lower compared to position 1 (unless Tyler threw it in a parabolic arc where it goes up before coming down). Thus, potential energy is lower than in position 1, assuming the ball is closer to the ground.

Therefore, in comparing positions 1 and 7:

• At Position 1, potential energy is at its highest while kinetic energy is at its lowest.
• At Position 7, kinetic energy is at its highest while potential energy is at its lowest.

Based on this analysis, the correct answer is:

Potential energy is at its highest value, while kinetic energy is at its lowest value (for Position 1), and Kinetic energy is at its highest value, while potential energy is at its lowest value (for Position 7).

Since the question seems to ask for a comparison summarizing both positions, the best fitting option you provided is:

Kinetic energy is at its highest value, while potential energy is at its lowest value (for Position 7).

In the context of the question, if requested only to describe either position separately, we would say:

For Position 1: Potential energy is at its highest value, while kinetic energy is at its lowest value.

For Position 7: Kinetic energy is at its highest value, while potential energy is at its lowest value.

Answer 2

b. Drag the terms (listed below the paragraph) into the blanks in order to correctly complete the paragraph. You will use the terms more than one time each.

At positions 2 and 3, _____is decreasing and ______ is increasing. At positions 5 and 6, ______ is decreasing and _____ is increasing.

Answer 3

To fill in the blanks in the paragraph regarding the changes in kinetic energy and potential energy at the specified positions, we first consider the typical behavior of these types of energy during projectile motion:

1. Positions 2 and 3: If the ball is on its way up, its height (and therefore potential energy) is increasing while its speed (and therefore kinetic energy) is decreasing due to the force of gravity acting against it. Thus, at these positions:

   • Kinetic energy is decreasing and potential energy is increasing.

2. Positions 5 and 6: If the ball is on its way down (after reaching its peak), its height is decreasing and its speed is increasing, which means:

   • Potential energy is decreasing and kinetic energy is increasing.

Now, here is the filled-in paragraph:

At positions 2 and 3, kinetic energy is decreasing and potential energy is increasing. At positions 5 and 6, potential energy is decreasing and kinetic energy is increasing.

If there are specific terms provided for this task, please share them so I can ensure they fit accurately into the paragraph.

Answer 4

c. Compared to the other positions shown in the image, describe the energy of the ball at position 4.

Potential energy and kinetic energy are both at their highest values.

Potential energy is at its highest value, while kinetic energy is at its lowest value.

Kinetic energy and potential energy are both at their lowest values.

Kinetic energy is at its highest value, while potential energy is at its lowest value.

Answer 5

To analyze the energy of the ball at position 4, we need to consider its general motion trajectory during the throw:

• At Position 4: This position is likely at or near the peak height of the ball (assuming the ball is thrown upwards in a parabolic motion). At this peak height, the potential energy is maximized because the ball is at its highest point, while the kinetic energy is minimized because the upward velocity of the ball has decreased to zero at that exact moment before it starts descending.

Based on this reasoning, the best description of the energy of the ball at position 4 is:

Potential energy is at its highest value, while kinetic energy is at its lowest value.

If position 4 is not the peak but rather another point in the trajectory where it's descending, you would need to compare it accordingly. However, given a typical projectile motion scenario, this response holds true.

Answer 6

d. Describe the speed of the ball at position 4.

The speed is at its highest value.

The speed is at its lowest value.

The speed is zero.

Answer 7

At position 4, assuming it is the peak of the ball's arc in a typical projectile motion scenario (where Tyler throws the ball upwards), the ball momentarily stops before it starts to fall back down. At this peak height:

• The vertical velocity of the ball is zero, which means the speed (magnitude of velocity) of the ball at that exact point is also zero.

Therefore, the correct description of the speed of the ball at position 4 is:

The speed is zero.

Answer 8

e. Use the drop down responses to complete the paragraph.

Energy be created or destroyed by ordinary physical or chemical process. This concept is called the ______ Throughout the experiment, the total amount of energy must _______ .When potential energy goes down, _______ kinetic energy .When potential energy goes up, ________ kinetic energy

Answer 9

To complete the paragraph correctly, let’s fill in the blanks with the appropriate terms:

Energy cannot be created or destroyed by ordinary physical or chemical processes. This concept is called the law of conservation of energy. Throughout the experiment, the total amount of energy must remain constant. When potential energy goes down, kinetic energy goes up. When potential energy goes up, kinetic energy goes down.

So the completed paragraph is:

Energy cannot be created or destroyed by ordinary physical or chemical processes. This concept is called the law of conservation of energy. Throughout the experiment, the total amount of energy must remain constant. When potential energy goes down, kinetic energy goes up. When potential energy goes up, kinetic energy goes down.