powering up notebook yr2

8/13/2019 Powering Up Notebook Yr2

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Name__________________________________ Station#____________

Homeroom Teacher ________________________________________

iscovery LabScience Notebook


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KINETIC ENERGY POTENTIAL ENERGYKinetic energyis motionof waves,

electrons, atoms, molecules, sub-stances, and objects.

Potential energyis stored energy andthe energy of positiongravitational

energy. There are several forms of po-

tential energy.Electrical Energyis the movement ofelectrical charges. Everything is madeof tiny particles called atoms. Atomsare made of even smaller particlescalled electrons, protons, and neu-trons. Applying a force can make

some of the electrons move. Electricalcharges moving through a wire is

called electricity. Lightning is anotherexample of electrical energy.

Nuclear Energyis energy stored inthe nucleus of an atomthe energythat holds the nucleus together. Theenergy can be released when the nu-clei are combined or split apart. Nu-clear power plants split the nuclei of

uranium atoms in a process called fis-sion. The sun combines the nuclei ofhydrogen atoms in a process called

fusion. Scientists are working on cre-

ating fusion energy on earth, so thatsomeday there might be fusion power

plants.Radiant Energyis electromagnetic

energy that travels in transversewaves. Radiant energy includes visible

light, x-rays, gamma rays and radiowaves. Light is one type of radiant en-ergy. Solar energy is an example of ra-

diant energy.

Stored Mechanical Energyis energystored in objects by the application of

a force. Compressed springs andstretched rubber bands are examples

of stored mechanical energy

Thermal Energy, or heat, is the inter-nal energy in substancesthe vibra-tion and movement of the atoms andmolecules within substances. Geo-

thermal energy is an example of ther-mal energy.

Chemical Energyis energy stored inthe bonds of atoms and molecules. Itis the energy that holds these parti-cles together. Biomass, petroleum,

natural gas, and propane are exam-ples of stored chemical energy.

Motion Energyis the movement ofobjects and substances from one place

to another. Objects and substancesmove when a force is applied accord-ing to Newtons Laws of Motion. Wind

is an example of motion energy.

Gravitational Energyis the energy ofposition or place. A rock resting at thetop of a hill contains gravitational po-tential energy. Hydropower, such aswater in a reservoir behind a dam, is

an example of gravitational potentialenergy.Soundis the movement of energy

through substances in longitudinalwaves. Sound is produced when a

force causes an object or substance tovibratethe energy is transferredthrough the substance in a wave.


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Pop Can Speedster1. Does the number of winds of the rubber band affect the toys speed? Try It.

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2. What is the function of the rubber band on the outside of the can? Take it

off and test the speedster. What happens? Were you right?

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3. What do you think will happen if the pipe cleaner is not allowed to touch theground when the speedster is released? Try it. What happened? Can you

explain why this happened?

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4. Predict what will happen if you let the speedster climb a ramp. Explain whyyou think so. Try it. Describe what happens.

5. Use energy ideas to explain what happens when the speedster is wound upand let go.

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Rubber Band Airplane1. Draw a picture of your rubber band airplane in the space below.

Label its parts.

2. What happen to the rubber band when you wound the propeller?______________________________________________________________________________

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3. When you let go of the propeller, what did the rubber band do?______________________________________________________________________________

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4. What kind of energy is created when the rubber band is twisted?____________

5. What kind of energy is created after the propeller is let go? _________________

6. What does the rubber band do besides store energy?______________________________________________________________________________

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7. How does the motion of the propeller cause the airplane to move?______________________________________________________________________________

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powering up notebook yr2

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