The picture shows a baseball moving through the air after it is thrown.

Question

Which graph shows how the kinetic energy (KE) and potential energy (PE) of the baseball changes as it moves?

(1 point)
Responses

Question 3
3. When an object is in motion, it possesses what type of energy?(1 point)
Responses

chemical energy
chemical energy

kinetic energy
kinetic energy

thermal energy
thermal energy

potential energy
potential energy
Question 4
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.
Question 5
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 speed of the object
the speed of the object

the object's height from the ground
the object's height from the ground

the color of the object
the color of the object

the shape of the object
the shape of the object
Question 6
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.

The kinetic energy and potential energy are the same.
The kinetic energy and potential energy are the same.

Kinetic energy is greater than potential energy.
Kinetic energy is greater than potential energy.

The kinetic energy is twice the amount of potential energy.
The kinetic energy is twice the amount of potential energy.
Question 7
7. In an investigation of energy transfer, a student observes a roller coaster at locations A, B, C, and D. Then she creates the graph below of the roller coaster’s potential and kinetic energy at each location.

Which statement is true according to the graph?

(1 point)
Responses

The roller coaster destroys potential energy.
The roller coaster destroys potential energy.

The roller coaster creates kinetic energy.
The roller coaster creates kinetic energy.

The roller coaster’s kinetic and potential energy change from location to the next, but its total energy remains the same.
The roller coaster’s kinetic and potential energy change from location to the next, but its total energy remains the same.

Potential energy increases, but kinetic energy does not change.
Potential energy increases, but kinetic energy does not change.
Question 8
8. The pendulum in the diagram below swings from position A to B.

If we don’t consider friction, what happens to the total mechanical energy as the pendulum swings from position A to position B?

(1 point)
Responses

It declines
It declines

It remains the same
It remains the same

It is not conserved
It is not conserved

It becomes greater.
It becomes greater.
Question 9
9. Rebecca climbs the ladder of a large water slide, waits her turn at the top, and then slides down the slide into a pool. Which answer best describes the energy changes during her time on the slide?(1 point)
Responses

kinetic → potential → kinetic
kinetic → potential → kinetic

kinetic → mechanical → potential
kinetic → mechanical → potential

potential → mechanical → kinetic
potential → mechanical → kinetic

potential → kinetic → potential
potential → kinetic → potential
Question 10
10. Kim is upstairs, but walks downstairs to the kitchen for a snack. Which statement correctly describes the types of energy she has at the top of the stairs and as she walks down the stairs?(1 point)
Responses

kinetic energy at the top of the stairs; potential energy as she walks down
kinetic energy at the top of the stairs; potential energy as she walks down

potential energy at the top of the stairs; potential energy as she walks down
potential energy at the top of the stairs; potential energy as she walks down

kinetic energy at the top of the stairs; kinetic energy as she walks down
kinetic energy at the top of the stairs; kinetic energy as she walks down

potential energy at the top of the stairs; kinetic energy as she walks down
potential energy at the top of the stairs; kinetic energy as she walks down
Question 11
11. The picture below shows a pinwheel that Bobby has in his front yard.

Often Bobby sees his pinwheel spinning, but other times it does not spin. Which statement best explains what makes his pinwheel spin?

(1 point)
Responses

The Sun heats up the pinwheel, causing it to turn.
The Sun heats up the pinwheel, causing it to turn.

Energy from the wind pushes on the wheel causing the pinwheel to move.
Energy from the wind pushes on the wheel causing the pinwheel to move.

Energy from the ground shakes the wheel causing the pinwheel to move.
Energy from the ground shakes the wheel causing the pinwheel to move.

The colors on the wheel repel one another, causing it to turn.
The colors on the wheel repel one another, causing it to turn.
Question 12
12. Jennifer uses different forms of energy when she gets ready for school in the morning. Which table below correctly shows the forms of energy used in Jennifer's actions?(1 point)
Responses

Question 13
13. The picture illustrates the solar panels that power all of the appliances in Joshua's house. What energy transformations occur that enable Joshua to bake cookies for his family in the oven? (1 point)
Responses

light energy → electrical energy → heat energy
light energy → electrical energy → heat energy

heat energy → light energy → heat energy
heat energy → light energy → heat energy

light energy → electrical energy → chemical energy
light energy → electrical energy → chemical energy

heat energy → chemical energy → light energy
heat energy → chemical energy → light energy
Question 14
14. As energy is transferred or conserved, some of that energy becomes unavailable to do work. What happens to this unavailable energy?(1 point)
Responses

The unavailable energy is given off as microwaves
The unavailable energy is given off as microwaves

The unavailable energy is conducted
The unavailable energy is conducted

The unavailable energy is destroyed
The unavailable energy is destroyed

The unavailable energy is given off as heat
The unavailable energy is given off as heat
Question 15
15. Betsy uses an electric alarm clock to wake up for school. What energy transformation happens in the alarm clock to help her wake up?(1 point)
Responses

electrical energy converts to heat energy
electrical energy converts to heat energy

sound energy converts to kinetic energy
sound energy converts to kinetic energy

electrical energy converts to sound energy
electrical energy converts to sound energy

chemical energy converts to electrical energy
chemical energy converts to electrical energy
Question 16
16. An aluminum block has a starting temperature of 300oC. The block is placed into 200 milliliters of water, which has a temperature of 20oC. What heat transfer will occur?(1 point)
Responses

Heat will flow from the block to the water until both substances have a temperature of 20 degrees Celcius.
Heat will flow from the block to the water until both substances have a temperature of 20 degrees Celcius.

Heat will flow from the block to the water until both substances have a temperature between 20 degrees Celsius and 300 degrees Celcius.
Heat will flow from the block to the water until both substances have a temperature between 20 degrees Celsius and 300 degrees Celcius.

Heat will flow from the block to the water until both substances have the same temperature as their container.
Heat will flow from the block to the water until both substances have the same temperature as their container.

Heat will flow from the block to the water until both have a temperature of 300oC.
Heat will flow from the block to the water until both have a temperature of 300oC.
Question 17
17. Two samples of pure water are mixed with food coloring. One sample is red, and the other is blue. When the two water samples are combined, the red water floats on top of the blue water. Which statement best explains this result? (1 point)
Responses

The red water is warmer and is less dense.
The red water is warmer and is less dense.

The blue water is warmer and is more dense.
The blue water is warmer and is more dense.

The red water is colder and is more dense.
The red water is colder and is more dense.

The blue water is colder and is less dense.
The blue water is colder and is less dense.
Question 18
18. Which investigation would best show the transfer of heat energy without any type of matter as a medium?(1 point)
Responses

an investigation of radiation using a current within a fluid
an investigation of radiation using a current within a fluid

an investigation of conduction through movement of particles within a solid
an investigation of conduction through movement of particles within a solid

an investigation of radiation using electromagnetic waves
an investigation of radiation using electromagnetic waves

an investigation of conduction using collisions between particles
an investigation of conduction using collisions between particles
Question 19
19. Convection ovens cook food more evenly than a standard thermal oven. Which statement explains how a convection oven works?(1 point)
Responses

Hot air is transferred through density differences when cool air rises and hot air sinks.
Hot air is transferred through density differences when cool air rises and hot air sinks.

Hot air is transferred when heat radiates from a thermal burner.
Hot air is transferred when heat radiates from a thermal burner.

Hot air is transferred through direct molecule contact.
Hot air is transferred through direct molecule contact.

Hot air is transferred through density differences when hot air rises and cool air sinks.
Hot air is transferred through density differences when hot air rises and cool air sinks.
Question 20
20. People use oven mitts to avoid getting burns when moving hot metal pans while cooking. Which physical property of the metal pan requires the use of an oven mitt when it is hot?(1 point)
Responses

Low magnetism
Low magnetism

High thermal conductivity
High thermal conductivity

High solubility
High solubility

Low thermal conductivity
Low thermal conductivity
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Answer 1

Here are the answers to the questions based on the information provided:

Question 3

When an object is in motion, it possesses what type of energy?

• Response: kinetic energy

Question 4

Which object in the figure has the least amount of kinetic energy?

• Response: Object 1

Question 5

An object’s gravitational potential energy depends on the object’s mass, the strength of the gravitational field, and what other variable?

• Response: the object's height from the ground

Question 6

How does your potential energy compare to your kinetic energy at the top of the shot?

• Response: The kinetic energy is less than potential energy.

Question 7

Which statement is true according to the graph?

• Response: The roller coaster’s kinetic and potential energy change from location to the next, but its total energy remains the same.

Question 8

What happens to the total mechanical energy as the pendulum swings from position A to position B?

• Response: It remains the same

Question 9

Which answer best describes the energy changes during her time on the slide?

• Response: potential → kinetic → potential

Question 10

Which statement correctly describes the types of energy she has at the top of the stairs and as she walks down the stairs?

• Response: potential energy at the top of the stairs; kinetic energy as she walks down

Question 11

Which statement best explains what makes his pinwheel spin?

• Response: Energy from the wind pushes on the wheel causing the pinwheel to move.

Question 12

Which table below correctly shows the forms of energy used in Jennifer's actions?

• (The response would depend on the table shown in your original content, which is not included here.)

Question 13

What energy transformations occur that enable Joshua to bake cookies for his family in the oven?

• Response: light energy → electrical energy → heat energy

Question 14

What happens to this unavailable energy?

• Response: The unavailable energy is given off as heat

Question 15

What energy transformation happens in the alarm clock to help her wake up?

• Response: electrical energy converts to sound energy

Question 16

What heat transfer will occur?

• Response: Heat will flow from the block to the water until both substances have a temperature between 20 degrees Celsius and 300 degrees Celcius.

Question 17

Which statement best explains this result?

• Response: The red water is warmer and is less dense.

Question 18

Which investigation would best show the transfer of heat energy without any type of matter as a medium?

• Response: an investigation of radiation using electromagnetic waves

Question 19

Which statement explains how a convection oven works?

• Response: Hot air is transferred through density differences when hot air rises and cool air sinks.

Question 20

Which physical property of the metal pan requires the use of an oven mitt when it is hot?

• Response: High thermal conductivity

Let me know if you have any further questions!