Janice VanCleave's Physics for Every Kid: Easy Activities That Make Learning Science Fun

Introduction ixForeword xiiiI Energy Introduction 11. Energy Conservation 52. Frequency 93. Coupled Pendulums 114. Sound Waves in Air 145. Pressure Waves 176. Pitch 207. Sound Transmission 238. The Effect of Mass on Sound 279. Natural Frequency 3010. Neutral Atom 3211. Electric Current 3612. Conductors vs. Insulators 3913. LED 4314. Electrochemical Energy 4615. Polarizing an Insulator 5116. Polarizing a Conductor 5617. Electroscope 5918. Triboelectric Effect 6319. Adhesion: Charging by Contact 6620. Light Energy 7021. Light Transmission 7322. Light Waves 7723. Interference in Thin Films 8024. Concave Lens 8425. Convex Lens 8726. Plano-Convex Lens 9027. Polarized Light 9328. Filters 9629. Optical Density 9930. Refractive Index 10331. Shadows 108II Force and Motion Introduction 11332. Inertia: Newton's First Law of Motion 11533. Rotational Inertia 11834. Acceleration 12235. Impulse 12636. Gravity 12937. Friction 13238. Air Resistance 13539. Drag Force 13740. Air Pressure 14141. Torque 14542. Resultant Force of Gravity 14843. Center of Gravity 15144. Balance 15445. Shifting the Center of Gravity 15746. Action/Reaction 16147. Normal Force 16548. Balloon Rocket 16949. Bounce 17350. Coand Effect 17751. Bernoulli's Principle 17952. Pressure Differences 18253. Balanced Forces 18554. Unbalanced Forces 18855. Lift Forces 191III Simple Machines Introduction 19556. First-Class Lever 19957. Equal-Arm Balance 20358. Second-Class Lever 20659. Third-Class Lever 21060. Just for Fun: Third-Class Lever 21461. Inclined Plane 21762. Screw 22063. Wedge 22364. Moveable Pulley 22665. Fixed Pulley 22966. Wheel and Axle 233IV Magnets Introduction 23767. Ferromagnetism 24068. Magnetic Field 24469. 3-D Magnetic Field 24870. Mapping Magnetic Fields 25171. Temporary vs. Permanent Magnets 25472. Magnetic Permeability 25773. Compass Rose 26074. Floating Compass 26275. Magnetic Declination 26576. Electromagnet 26977. Right-Hand Rule 27478. Demagnetization 27779. Dipping Needle 27980. Magnetic Energy 283Glossary 287Index 311