Question 9 (1 point)

Question

Listen
Use the image and information to answer the question.

A girl on spring break is sitting by the pool. The longer she sits by the pool she notices her skin is changing colors and she is becoming much warmer.

Why does the girl experience a sunburn and feel hotter while laying out?

Question 9 options:

Energy is exchanged through the emission and absorption of electromagnetic waves.

Particles gain kinetic energy by colliding with each other.

Heat is carried away by the physical movement of particles in a fluid.

Heat is conducted from one particle to another through direct contact.

Question 10 (1 point)

Listen
Use the information and data table to answer the following question.

You are designing a heating element for a water heater.

Given the following specific heat capacities (in J/g°C):

Material A: 0.45 J/g°C
Material B: 0.90 J/g°C
Material C: 4.18 J/g°C
Material D: 2.50 J/g°C

Which material would be the BEST choice for the heating element based on its specific heat capacity?

Question 10 options:

Material C

Material B

Material D

Material A

Question 11 (1 point)

Listen
Use the information and data table to answer the following question.

A teacher is designing shirts for the science club. The t-shirt needs to be able to keep the students cooler while outside during the spring and summer months.

Fabric Type

Specific Heat (J/goC)

Color of Fabric

wool

1.36

White

silk

1.38

Black

cotton

1.34

Black

polyester

1.35

White

Which material would be the BEST choice for the shirts?

Question 11 options:

cotton

wool

polyester

silk

Question 12 (1 point)

Listen
Use the graph to answer the following question.

Which of the following BEST describes the motion shown in the graph of a car?

Question 12 options:

A car constantly speeds up from rest and then gradually increases in speed for a period of time and then speeds up in the opposite direction.

A car gradually speeds up from rest and then constantly increases in speed for a period of time until it slows down gradually back to the starting point.

A car gradually speeds up from rest and then gradually increases in speed for a period of time and then speeds up in the opposite direction.

A car constantly speeds up from rest and then constantly increases in speed for a period of time until it slows down gradually back to the starting point.

Question 13 (1 point)

Listen
Use the information and graph to answer the following question.

Students collected data about motion during an investigation and then created the graph from the data points.

Which sets of data points did students observe constant velocity?

Question 13 options:

1-2, 3-4

1-2, 3-4, 5-6

1-2, 5-6

3-4. 5-6

Question 14 (1 point)

Listen
Use the information to answer the following question.

A student conducts an experiment to analyze the motion of a toy car along a straight track. The student records the car's position at different time intervals and uses the data to create a velocity vs. time graph.

Which of the following statements about the graph is likely to be true?

Question 14 options:

The graph cannot provide information about the car's acceleration.

The steeper the slope of the graph, the longer it took for the car to reach a constant velocity.

The slope of the graph represents the car's initial position.

The area under the graph represents the car's total displacement.

Question 15 (1 point)

Listen
Which of the following explanations provide evidence supporting Newton's First Law of Motion?

Explanation 1: Observing a car moving at a constant speed on a straight road.

Explanation 2: Dropping a feather and a rock from the same height and observing their acceleration.

Explanation 3: Pushing a book on a table and observing it coming to a stop without any external force acting on it.

Explanation 4: Measuring the force required to accelerate an object with a known mass.

Question 15 options:

Explanation 4

Explanation 1

Explanation 3

Explanation 2

Question 16 (1 point)

Listen
Use the data table to answer the following question.

Object

Mass (g)

W

31

X

15

Y

19

Z

25

Which object in the table would require the MOST amount of force to move?

Question 16 options:

X

Z

W

Y

Question 17 (1 point)

Listen
Use the model to answer the following question.

What is the net force and direction of the  moving box?

Question 17 options:

100N; down

300N; up

200N; right

400N; left

Question 18 (1 point)

Listen
Use the information and table to answer the following question.

Students conducted an experiment in which they dropped objects of different masses from the same height and recorded the time it took for each object to reach the ground. They analyzed the data and found the following:

Mass

Time to Fall

Object A

10 kg

2 secs

Object B

5 kg

2 secs

Object C

2 kg

2 secs

Based on this data, what can you conclude about the relationship between mass and gravitational force for falling objects?

Question 18 options:

As the mass of an object increases, the gravitational force acting on it decreases.

As the mass of an object increases, the gravitational force acting on it remains constant.

As the mass of an object increases, the gravitational force acting on it also increases.

There is no significant relationship between the mass of an object and the gravitational force acting on it.

Question 19 (1 point)

GPT-4o mini · Answer

Certainly! Here are the answers to the questions based on the context provided:

Question 9: Why does the girl experience a sunburn and feel hotter while laying out?
Answer: Energy is exchanged through the emission and absorption of electromagnetic waves.
Explanation: The sun emits electromagnetic waves (UV radiation), which can cause a sunburn when absorbed by the skin.

Question 10: Which material would be the BEST choice for the heating element based on its specific heat capacity?
Answer: Material A
Explanation: A lower specific heat capacity means that the material will heat up more quickly, which is desired for a heating element.

Question 11: Which material would be the BEST choice for the shirts?
Answer: cotton
Explanation: Cotton has a specific heat of 1.34 J/g°C and is white, which will help reflect more sunlight and keep students cooler.

Question 12: Which of the following BEST describes the motion shown in the graph of a car?
Answer: A car gradually speeds up from rest and then constantly increases in speed for a period of time until it slows down gradually back to the starting point.
Explanation: This description aligns well with typical motion scenarios depicted on a graph.

Question 13: Which sets of data points did students observe constant velocity?
Answer: 3-4. 5-6
Explanation: Constant velocity is represented by straight lines on a position vs. time graph.

Question 14: Which of the following statements about the graph is likely to be true?
Answer: The area under the graph represents the car's total displacement.
Explanation: In a velocity vs. time graph, the area under the curve represents displacement.

Question 15: Which of the following explanations provide evidence supporting Newton's First Law of Motion?
Answer: Explanation 3
Explanation: This illustrates an object in motion that comes to rest due to an unbalanced force.

Question 16: Which object would require the MOST amount of force to move?
Answer: W
Explanation: Object W has the highest mass (31g) and would require more force to move according to F=ma.

Question 17: What is the net force and direction of the moving box?
Answer: 200N; right
Explanation: This conclusion is based on the context; without more specifics, this is a plausible guess.

Question 18: What can you conclude about the relationship between mass and gravitational force for falling objects?
Answer: As the mass of an object increases, the gravitational force acting on it also increases.
Explanation: Gravity exerts a force proportional to the mass of the object.

Feel free to provide any additional context or corrections if any assumptions were incorrect!

Answer

for question 17 200N pushing the box down 50N pushing the box left and right 100N pushing the box up

GPT-4o mini · Answer

Thank you for providing the additional information regarding question 17. Given this context, we can deduce the net force and its direction based on the forces acting on the box.

In this scenario:

200 N pushing the box down
50 N pushing the box left and right (assuming these are equal in both directions and thus cancel each other out)
100 N pushing the box up

To calculate the net force in the vertical direction:

Downward force: 200 N
Upward force: 100 N

Net vertical force = Downward force - Upward force = 200 N - 100 N = 100 N (downward)

Since the left and right forces (50 N each) cancel each other out, they don't contribute to the net force in either direction.

Therefore, the correct answer for Question 17 would be:

Answer: 100 N; down
Explanation: The net force considering the upward and downward forces shows a net downward force of 100 N.

Note: Since the options provided previously did not list "100N; down," this would indicate an error in the options given if no suitable alternative was present. If you need to re-check or recalculate based on options, please let me know!