Designing Energy Systems
Reliability of Evidence
Electric Circuits and Currents
Non-Touching Forces
You Should Know This By Now
KE and PE
Energy Sources
100
Explain the type of energy conversion a generator performs.
Kinetic to electric energy.
100
Your friend's dad says his friend's MAP APP is better than Google Maps because of its enhanced geographic updating system, and traffic density algorithm.
What are some incentives and motives your friend's dad may have in making this claim about his friend's MAP APP?
Your friend's dad may work for MAP APP.
Your friend's dad wants to see his friend make money.
Your friend's dad genuinely does like MAP APP better than Google Maps.
100
A student is connecting their lightbulb and battery system to a popsicle stick. The student has formed this system in a loop, but the lightbulb is not turning on. Why not?
The popsicle stick is not a good conductor for electricity. It is an insulator.
100
List one variable affecting the strength of magnetic forces.
Size of magnet, Strength of magnet, How close the magnet is to the object, Whether there is anything between the magnet and the other object
100
Does food have energy? Why?
Yes, even though it is not moving, it has the ability to make something move or change.
100
A student eats breakfast. After, she runs while listening to music from her phone. Her phone dies. What type of energy does she have the most of when she is running?
She has KE because she is moving.
100
What type of energy do all power plants provide?
A) potential energy
B) kinetic energy
C) light energy
D) electric energy
D) electric energy
200
Detail each type of energy conversion and transfer in the following system:
1) Hand Crank
2) Wires
3) Battery
4) Flashlight
KE is converted into EE by the hand crank generator.
The EE is transferred to the battery and converted into PE.
The PE is transferred to the flashlight and converted into LE.
200
Verizon claims to be the best wireless network. They have shown a map of their coverage compared to T-Mobile in their commercial. How reliable is the coverage map as evidence supporting the claim that they are the best wireless network?
Somewhat to not reliable.
Verizon stands to profit from convincing people they are better than T-Mobile, so they can not be fully trusted with their evidence.
200
What do the arrows represent in this system?
Electric current
200
Which of the following statements about the strength of non-touching forces and distances between objects is true?
a. Distance does not affect the strength of non-touching forces.
b. Non-touching forces have the same strength from all distances.
c. The strength of non-touching forces decreases as the distance between the objects decreases.
d. The strength of non-touching forces increases as the distance between the objects decreases.
d. The strength of non-touching forces increases as the distance between the objects decreases.
200
Cats run away from me. What kind of energy do they have and why?
Kinetic energy because they are moving.
200
You walk to school. What type of energy do you have and how do you know?
KE because you are moving.
200
What do nuclear and fuel-burning power plants have in common? Pick the best answer.
A) They both use kinetic energy as an energy source.
B) They both use potential energy as an energy source.
C) They both use electrical energy as an energy source.
D) They are both deadly.
B) They both use potential energy as an energy source.
300
List two advantages of models in science.
Models can help us organize our ideas before fully constructing the real system, which can also save money.
Models can offer us a visual representation of something that may be hard to see in real life (ie. molecules).
300
The Ed-You Swivel Chair is developed by Ed-You-Energy. The company claims the Ed-You-Swivel chairs will capture enough energy to power the school’s small electronics. Consider the following two claims:
Claim 1: The Ed-You-Swivel chairs will capture enough energy to power the school’s small electronics.
Claim 2: The Ed-You-Swivel chairs will NOT capture enough energy to power the school’s small electronics.
Which claim does this piece of evidence below support and how reliable is the evidence?
The Ed-You-Swivel developers state that the product can save schools money.
Claim 1
Somewhat reliable to not reliable at all because it is directly from the company which will profit if they sell more chairs.
300
________ energy in the battery is converted to ________ energy and transferred by the ________. It then converts to ________ energy when it reaches the lightbulb.
a. potential….electrical….current….light
b. potential….electrical….circuit….light
c. potential….light….current….electrical
d. kinetic….light….current….electrical
a. potential….electrical….current….light
300
The following non-touching forces have both the forces of attraction and repulsion:
a. Magnetic force only
b. Magnetic and Electrostatic force
c. Magnetic, Electrostatic, and Gravitational force
d. Gravitational force only
b. Magnetic and Electrostatic force
300
Does anything create its own energy?
No. Nothing creates energy, it is always transferred from something else that has energy.
300
You wake up in the morning and eat a bagel. What type of energy does the bagel have and how do you know?
It has PE because it is storing energy.
300
What do hydroelectric power plants and wind turbines have in common? Pick the best answer.
A) They both use kinetic energy as an energy source.
B) They both use potential energy as an energy source.
C) They both use electrical energy as an energy source.
D) They are both deadly.
A) They both use kinetic energy as an energy source.
400
List two limitations of models in science.
Models are not actually working, therefore only a representation of real life.
Models do not show us the full size or true amount of things.
400
The Ed-You Swivel Chair is developed by Ed-You-Energy. The company claims the Ed-You-Swivel chairs will capture enough energy to power the school’s small electronics. Consider the following two claims:
Claim 1: The Ed-You-Swivel chairs will capture enough energy to power the school’s small electronics.
Claim 2: The Ed-You-Swivel chairs will NOT capture enough energy to power the school’s small electronics.
Which claim does this piece of evidence below support and how reliable is the evidence?
A commercial paid for by Ed-You-Energy says that the Ed-You-Swivel “creates” enough energy to power an entire school.
Claim 1
Somewhat reliable to not reliable at all because it is directly from the company which will profit if they sell more chairs.
400
Fill in the blanks with the correct multiple choice answer.
An electric ________ is the way that electrical energy is transferred from one place to another, and an electric ________ is a closed path in which an electric ________ can exist.
a. circuit….current….circuit
b. current….circuit….current
c. current….current….circuit
d. circuit...circuit...current
b. current….circuit….current
400
Students performed an experiment to test how distance affects the strength of magnetic force, using a magnet and paper clips. Below are the results.
A) As the distance between the magnet and paper clips decreases, the magnetic force decreases.
B) As the distance between the magnet and paper clips decreases, the magnetic force increases.
C) Distance has no effect on magnetic force.
D) As the distance between the magnet and paper clips increases, the gravitational force decreases.
B) As the distance between the magnet and paper clips decreases, the magnetic force increases.
400
What is the main difference between kinetic and potential energy?
Kinetic energy is the energy that objects have when they are moving, and potential energy is the energy that objects have when they are storing energy.
400
Which are the best examples of objects that ALL have potential energy?
A) a lightbulb shining, the sun
B) a moving car, a child skating on ice
C) a battery, a stretched rubber band, food
D) a bird flying, a soccer ball flying through the air
C) a battery, a stretched rubber band, food
A battery has chemical PE, a stretched rubber band has elastic PE, and food has chemical PE, all forms of stored energy.
400
How is a combustion engine different than a fuel burning power plant?
A) They are not different.
B) The ONLY difference is their size.
C) The combustion engine converts potential energy to kinetic energy and the fuel burning power plant converts potential energy to electrical energy.
D) The combustion engine converts potential energy to electrical energy and the fuel burning power plant converts potential energy to potential energy.
C) The combustion engine converts potential energy to kinetic energy and the fuel burning power plant converts potential energy to electrical energy.
500
You created a physical model of an energy capturing system. Which of the following statements was true?
a. The physical model really captured kinetic energy, which was converted to electrical energy by the generator, and stored as potential energy in the battery.
b. The physical model really captured potential energy, which was converted to electrical energy by the generator, and stored as kinetic energy in the battery.
c. The physical model represented a system that captures kinetic energy, which was converted to electrical energy by the generator, and stored as potential energy in the battery.
d. The physical model represented a system that captures potential energy, which was converted to electrical energy by the generator, and stored as kinetic energy in the battery.
c. The physical model represented a system that captures kinetic energy, which was converted to electrical energy by the generator, and stored as potential energy in the battery.
500
The Ed-You Swivel Chair is developed by Ed-You-Energy. The company claims the Ed-You-Swivel chairs will capture enough energy to power the school’s small electronics. Consider the following two claims:
Claim 1: The Ed-You-Swivel chairs will capture enough energy to power the school’s small electronics.
Claim 2: The Ed-You-Swivel chairs will NOT capture enough energy to power the school’s small electronics.
Which claim does this piece of evidence below support and how reliable is the evidence?
Engineers at Product Testing Lab, Inc. found that the Ed-You-Swivel harnesses 4,000 joules in one day of typical use. It would take an Ed-You-Swivel 20 days to charge one tablet. Product Testing Lab, Inc. is a company used by many businesses, schools, and government agencies to make choices about what to buy.
Claim 2
Somewhat reliable to very reliable because it is a company which appears to be independent of Ed-You and is used by any businesses, schools, and government agencies.
500
Draw a quick sketch of how wires would need to be connected to make the lightbulb turn on using the following items:
The sketch should include all three items connected in a loop.
A working circuit required a closed loop system.
500
The figure above displays a model of Earth’s gravitational fields. Which of the following statements about the model of the gravitational field is true?
A) There are lines and arrows around the earth, and if we look in space we can see them.
B) This picture shows that gravitational force is stronger as you get closer to Earth.
C) This picture shows that gravitational force is weaker as you get closer to Earth.
D) The picture shows the direction of magnetic force.
B) This picture shows that gravitational force is stronger as you get closer to Earth.
500
Describe energy transfer starting with the sun and ending with a human and a hand crank generator. Make sure to include some chickens too.
Energy is provided by the sun, which transfers energy to plants, which provides energy to chickens, which provide energy to humans, who use kinetic energy when turning the hand crank.
500
A student eats breakfast. After, she runs while listening to music from her phone. Her phone dies. What type of energy does her phone have?
Her phone has potential energy because it is still storing energy, and has the potential to turn back on.
500
The King's County Hospital Center in Brooklyn installed energy efficient systems to provide energy for their lights, saving them money in the future, and causing less pollution. What types of energy conversions are occurring to provide energy for the lights (use the picture to answer your question)?
The solar panels are converting light energy from the sun into electrical energy and the wind turbines are converting kinetic energy from the wind into electrical energy.