Question 1

Which of the following is true about energy?

Accepted Answer

It cannot be created or destroyed and is conserved in the universe.

Answer

It can be created or destroyed depending on the situation.

Answer

It always decreases in any physical process.

Answer

It can only be converted from one form to another.

Question 2

Which of the following is an example of potential energy?

Accepted Answer

A stretched rubber band

Answer

A moving car

Answer

A running river

Answer

A burning candle

Question 3

When does kinetic energy reach its maximum value?

Accepted Answer

At the lowest point of an object's motion

Answer

At any random position

Answer

At the highest point of an object's motion

Answer

At rest position

Question 4

Which factor affects the amount of kinetic energy possessed by an object?

Accepted Answer

The object's mass and velocity

Answer

The object's size

Answer

The object's temperature

Answer

The object's height

Question 5

What is the relationship between kinetic and potential energy?

Accepted Answer

They can be converted into each other

Answer

Kinetic energy always increases potential energy

Answer

They are unrelated forms of energy

Answer

Potential energy always increases kinetic energy

Question 6

When a pendulum reaches its highest point, what type of energy does it possess?

Accepted Answer

Potential energy

Answer

Elastic potential energy

Answer

Thermal energy

Answer

Kinetic energy

Question 7

A ball is thrown into the air. At the highest point of its trajectory, what type of energy does it possess?

Accepted Answer

Potential energy

Answer

Kinetic energy

Answer

Electrical energy

Answer

Thermal energy

Question 8

Which of the following is an example of a chemical energy transformation?

Accepted Answer

Burning wood to produce heat

Answer

Wind turbines converting wind energy into electricity

Answer

A water dam generating hydroelectric power

Answer

Solar panels converting sunlight into electricity

Question 9

Which of the following is an example of a mechanical energy transformation?

Accepted Answer

A pendulum swinging back and forth

Answer

A chemical reaction releasing heat

Answer

A nuclear power plant generating electricity

Answer

A wind turbine converting wind energy into electricity

Question 10

Which of the following is an example of a thermal energy transformation?

Accepted Answer

Boiling water on a stove

Answer

A car engine burning fuel

Answer

A solar panel converting sunlight into electricity

Answer

A wind turbine generating mechanical energy

Question 11

Which of the following is an example of an electrical energy transformation?

Accepted Answer

Charging a smartphone with a power adapter

Answer

A waterfall generating hydroelectric power

Answer

A flashlight emitting light

Answer

A candle burning and producing heat

Question 12

Which type of heat transfer involves the transfer of heat through electromagnetic waves?

Accepted Answer

Radiation

Answer

Conduction

Answer

Evaporation

Answer

Convection

Question 13

Which of the following factors does NOT affect the strength of electric fields?

Accepted Answer

Temperature

Answer

Charge

Answer

Medium

Answer

Distance

Question 14

Which of the following factors affects the strength of electric fields?

Accepted Answer

Charge and distance

Answer

Temperature and pressure

Answer

Voltage and current

Answer

Resistance and frequency

Question 15

How does increasing the distance between charged objects affect the strength of electric fields?

Accepted Answer

Decreases the strength of electric fields

Answer

Has no effect on the strength of electric fields

Answer

Can either increase or decrease the strength of electric fields

Answer

Increases the strength of electric fields

Question 16

What is the relationship between the strength of electric fields and the magnitude of charge?

Accepted Answer

Directly proportional

Answer

No relationship

Answer

Can either be directly or inversely proportional

Answer

Inversely proportional

Question 17

How does the presence of conductive materials affect the strength of electric fields?

Accepted Answer

Has no effect on the strength of electric fields

Answer

Can either increase or decrease the strength of electric fields

Answer

Decreases the strength of electric fields

Answer

Increases the strength of electric fields

Question 18

A cubic box with a mass of 10N falls from Position “a” to the ground at Position “c”.

Which statement describes the transformation of energy in the diagram?

Accepted Answer

Potential energy at Position “a” is the greatest, but kinetic energy changes as the height changes.

Answer

Potential energy at Position “c” is the greatest, but kinetic energy changes as the height changes.

Answer

Kinetic energy at Position “a” is the greatest, but potential energy changes as the height changes.

Answer

Kinetic energy at Position “c” is the lowest, but potential energy changes as the height changes.

Question 19

Which graph illustrates the relationship between the kinetic energy of an object and speed?

Accepted Answer

https://uploads.quizalize.com/2e5d96de-6972-4ba4-9f57-b77e15c65cec/question/f73f737a7a0f05b8736b0ac9a5f9d11970e04a7a.png

Answer

https://uploads.quizalize.com/2e5d96de-6972-4ba4-9f57-b77e15c65cec/question/a9d8b2914583f9cc32910f581fd18a4565ddef62.png

Answer

https://uploads.quizalize.com/2e5d96de-6972-4ba4-9f57-b77e15c65cec/question/0c3b5bdae8712031fcbcc756ab59bee9c3c13c7f.png

Answer

https://uploads.quizalize.com/2e5d96de-6972-4ba4-9f57-b77e15c65cec/question/525dd9051f1d02d9462c6350a68f4b26eb4c3944.png

Question 20

How would the line in the graph change if the graph showed marble size vs. kinetic energy of a marble that was rolling down an inclined plane?

Accepted Answer

It would remain the same.

Answer

It would go from the top left of the graph to the bottom center, and then back up to the top right, in a “V” shape.

Answer

It would go from the top left of the graph to the bottom right of the graph, in an “L” shape.

Answer

It would go in a straight line from the top left of the graph to the bottom right.

Question 21

A group of students have built an electromagnet using a 9-volt battery, an iron nail, and copper wire.

How can they make the magnet stronger?

Accepted Answer

increase the voltage of the battery

Answer

increase the size of the battery

Answer

increase the diameter of the wire used to make the coil

Answer

increase the length of the nail

Question 22

Noble gases are used in many situations where a safe and constant environment must be maintained. For example, helium is used to provide a protective atmosphere for making fiber optics and semiconductors. Argon is used to fill incandescent and flourescent light bulbs to prevent oxygen from corroding the hot filament.

Why are noble gases used in these situations?

Accepted Answer

Noble gases have a complete valence electron shell making them stable and nonreactive.

Answer

Noble gases do not have a complete valence electron shell making them stable and nonreactive.

Answer

Nobel gases do not have a complete valence electron shell making them unstable and reactive.

Answer

Nobel gases have a complete valence electron shell making them unstable and reactive.

Question 23

Christine is investigating how potential energy transforms into kinetic energy by rolling a ball down a staircase. Each stair in the staircase is the same height. The arrow shows the direction of movement of the ball.

As the ball moves down the staircase, where has two-thirds of the ball's INITIAL potential energy been converted to kinetic energy?

Accepted Answer

position 3

Answer

position 2

Answer

position 1

Answer

position 4

Question 24

Valeria placed batteries in her remote control used to control the television.

Which of the following explains how the batteries are used to power a remote control?

Accepted Answer

There is chemical energy that is creating chemical reactions in the remote control, and it is transforming into electrical energy that is used to power the remote control.

Answer

There are chemical reactions create electrical energy in the remote that is transformed into thermal energy that is used to power the remote.

Answer

The chemical reactions in the batteries are creating electrical energy that is transformed into chemical energy that is used to give the remote control power.

Answer

There are chemical reactions in the batteries that create electrical energy in the remote control that is transformed into light energy that is used to power the remote-control.

Question 25

Aliyah completed four investigations to examine how heat transfers in different situations.

Which investigation was NOT an example of conduction and why?

Accepted Answer

Investigation #1 is an example of radiation because the thermal energy from the Sun is traveling through space to heat the ice cream and cause it to melt.

Answer

Investigation #2 is an example of convection because the thermal energy from the heating pad is rising to melt the ice.

Answer

Investigation #4 is an example of convection because the thermal energy from the burger is rising causing cheese to melt.

Answer

Investigation #3 is an example of radiation because the thermal energy from her hand is traveling to the chocolate causing it to melt.

Question 26

Caroline looked at a picture of the flowers in her garden. She stated that, “Flowers turn energy from the sun into chemical energy to make food.”

Which of the following arguments BEST supports her claim?

Accepted Answer

The light energy from the sun is transformed into chemical energy when it used to perform photosynthesis in the plant.

Answer

The thermal energy from the sun is transformed into chemical energy when it is used to perform photosynthesis in the plant.

Answer

The light energy from the sun is transformed into thermal energy when it is used to provide the plant with the heat needed to perform photosynthesis.

Answer

The thermal energy from the sun is transformed into light energy that is used to provide the plant with the needed light to perform photosynthesis.

Question 27

Sulfur’s atomic number is 16.

Which diagram correctly models the distribution of electrons in a sulfur atom?

Accepted Answer

https://uploads.quizalize.com/2e5d96de-6972-4ba4-9f57-b77e15c65cec/question/52a660d34a11d3da18668929c82dd4262b57a83d.JPG

Answer

https://uploads.quizalize.com/2e5d96de-6972-4ba4-9f57-b77e15c65cec/question/c54be4e2d9c2fcc3aed5e590e10f6c40a16ff034.JPG

Answer

https://uploads.quizalize.com/2e5d96de-6972-4ba4-9f57-b77e15c65cec/question/2bf632572bffa4d95bbde12bdaa0dcc60914d546.JPG

Answer

https://uploads.quizalize.com/2e5d96de-6972-4ba4-9f57-b77e15c65cec/question/996b2556bcb9d94a71eaf1a3c630de3130f7b41f.png

Question 28

Which form of energy is involved in the process of starting a car and pressing the gas pedal?

Accepted Answer

mechanical

Answer

chemical

Answer

sound

Answer

nuclear

Question 29

Baylor remembers her teacher saying that water boiling is an example of convection, but she needs to be able to prove it.

Which of the following will BEST prove that water boiling is an example of convection and which argument supports the claim?

Accepted Answer

Investigation: Place a pot of water on a hot stove.

Argument: When the water at the bottom of the pot gains enough thermal energy, it will rise to the top causing bubbles to rise. The cooler water will fall until it gains enough thermal energy to rise and create bubbles. The rising and falling of water with the bubbles is proof convection is occurring.

Answer

Investigation: Place a bowl of water outside in the direct sunlight.

Argument: The thermal energy traveling through space will reach the water and increase the temperature. When the water has gained enough thermal energy, it will begin to create bubbles. The thermal energy moving through space and the creation of bubbles in the water proves that convection is occurring.

Answer

Investigation: Place a bowl of water under a heating lamp.

Argument: The thermal energy would travel from the heating lamp to the water and increase the temperature of the water. When the thermal energy of the water has increased enough, bubbles will begin to form. The thermal energy traveling from the heat lamp and the creation of bubbles proves that convection has occurred.

Answer

Investigation: Place a pot of water on the stove where the burner has been turned on.

Argument: The heat from the stove touching the pot will cause the thermal energy to pass through the atoms. When enough thermal energy has passed through the atoms, the temperature will rise enough to create bubbles in the water. The passing of thermal energy through the molecules and the creation of bubbles proves the convection has occurred.

Question 30

For a roller coaster as shown in the figure, which one of the following is correct?

Accepted Answer

Kinetic energies at the two extreme positions (points 1 and 5) are equal and zero.

Answer

Potential energy at the mean position (point 3) is twice of the potential at point 2 or at point 4.

Answer

Potential energy at the mean position (point 3) is one-half of the potentials at points 2 and 4.

Answer

Kinetic energies at the two extreme positions (points 1 and 5) are equal but non-zero.

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