Kinetic Energy
Potential Energy
Measurements and Reactions
LabLearner
Miscellaneous
100
A principle that states that energy is neither created nor destroyed, it simply changes form.
What is the Law of Conservation of Energy?
100
The energy stored in an object or substance is known as this.
What is potential energy?
100
A measure of light or illumination.
What is lux?
100
Describe how we converted potential energy into kinetic energy in Lab #1. Remember, in this lab we used the pendulum ball and the ring stand.
What is, we dropped the wood ball and knocked it into the plastic bear. The ball had potential energy when it was held in the air, and it increased in kinetic energy as it fell. The ball also transferred kinetic energy to the bear when it hit the bear and caused it to move.
100
In a combustion reaction, stored energy is converted into kinetic energy. Name three types of kinetic energy associated with forest fires.
What are heat, light, and sound?
200
The energy of motion.
What is kinetic energy?
200
The type of potential energy associated with falling objects is known as this.
What is gravitational potential energy?
200
A measure of electrical energy.
What is watts?
200
How does Lab #3 relate to the Law of Conservation of Energy? Be specific! Remember, in lab #3 we used vinegar and baking soda to inflate balloons.
What is, energy was converted but neither created nor destroyed. Vinegar and baking soda are composed of lots of atoms that are held together by chemical bonds. These bonds store chemical potential energy. When we mixed the vinegar with baking soda, the chemical bonds were broken and reformed, converting the chemical potential energy into kinetic energy.
200
What type of kinetic energy is lightning, and what is this energy converted into?
What is electrical energy, and it is converted into light, heat, and sound energy?
300
Name two types of kinetic energy that we explored in lab.
What is thermal, electrical, or light energy?
300
The potential energy that exists when comparing a region of high electrical charge to one of low electrical charge is this.
What is electrical potential energy?
300
Exothermic reactions do this.
What is give off heat?
300
Describe how Lab #2 supported the Law of Conservation of Energy. Remember, in this lab we used light bulbs.
What is, Investigation #2 showed direct relationships for the conversion of electrical energy to light energy and light energy to heat. As we increased electrical energy, light energy increased proportionally, and as we increased light energy, heat energy increased proportionally.
300
What is the charge of electrons and in which direction do they move in a circuit?
What is, electrons are negative and they move from negative to positive?
400
When molecules move faster, they have greater kinetic energy and more _______.
What is heat?
400
Earth's energy comes from here.
What is the sun?
400
This is a very common way of converting stored chemical energy into kinetic energy.
What is a combustion reaction?
400
Can one form of energy be converted to another? Use one of our labs to support your answer.
What is yes? In Investigation #1, we converted potential energy into kinetic by dropping the pendulum ball. In Investigation #2, we observed the conversion of electrical energy to light energy and the conversion of light energy to thermal energy. In Investigation #3, we observed the conversion of chemical potential energy to kinetic energy.
400
What can we conclude about a brighter light bulb versus a dimmer light bulb?
What is, a brighter light means that more electricity (and therefore more electrons) is flowing through the bulb, and a dimmer light means that less electricity and fewer electrons are flowing through the bulb?
500
Describe how electrical energy is a form of kinetic energy.
What is electrical energy is the movement of electrons?
500
The potential energy stored in the chemical bonds of chemical compounds is this.
What is chemical potential energy?
500
Fill in the blank: ______ + O2 --> H2O + CO2.
What is fuel?
500
Describe how a light bulb works.
What is, when you turn the light switch on, electricity begins to flow through the tungsten filament in the lightbulb.
500
Name four ways in which we can produce electricity.
What is, solar power, wind power, fossil fuels, hydroelectric, nuclear...?
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