1 / 7

Goal 3 Review

Goal 3 Review. Kinetic Energy ½m(v)² 2a. ½(5)(4)² Mass and velocity 3a. Increases 3b. Increases Potential Energy 4a. mgh. 5a. Gravitational 5b. Elastic 5c. Nuclear 5d. Chemical 5e. Electrical 1(9.8)(2)=19.6 J 6b. 2(9.8)(1)=19.6J Mass and Height

johnda
Download Presentation

Goal 3 Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Goal 3 Review

  2. Kinetic Energy • ½m(v)² • 2a. ½(5)(4)² • Mass and velocity • 3a. Increases • 3b. Increases • Potential Energy • 4a. mgh

  3. 5a. Gravitational • 5b. Elastic • 5c. Nuclear • 5d. Chemical • 5e. Electrical • 1(9.8)(2)=19.6 J • 6b. 2(9.8)(1)=19.6J • Mass and Height • 7a. Increase • 7b. Increase

  4. Mechanical Energy 20 Joules of energy at the top of the hill. How much kinetic and potential energy ¾ of the way down the hill. • Law of conservation of energy • 9a. Decreases, Increases, Stays the same • 9b. On board • 10a. Increases Temperature • 10b. Decreases • 10c. Greater • 10d. Greater • HEAT FLOWS FROM HIGH TO LOW

  5. W F D • Work • 11a. SAME • 11b. W=FxD • 11c. Joules (energy and Work) • 11d. 1470/20=73.5N • 11e. 62x9.8=607.6N 607.6x0.8=486.1 J • Power, Watts • 12a. 40x9.8x0.25=98J 98/2=49W • High , Low • Specific heat is the amount of energy it takes to change the temperature of a substance 1ºC. High SH slow to change temp. W P T

  6. Temperature Heat 15a. 3 methods of heat transfer: Radiation (waves through space No medium required; Conduction (transfer through direct contact) Convection (cycling of a fluid substance, heat rises cool falls) Conduction and convection require mediums. Radiation travels fastest through which state of matter? Conduction and Convection? Wave on board Wave on board Period Frequency measured in hertz (hz) Inverse, decreases Wavelength (λ) x frequency (f) V Λ f

  7. 21b. 280 x 1.5 = 420 21c. 5/2.5 =2 Inversely, increases Longitudinal/compressional Transverse Energy , Matter Directly Higher Faster, Slower 28 and 29 Radio, Micro, Infrared, ROY G. BIV, Ultraviolet, X-ray, Gamma Energy, Wavelength, Frequency Change in wave frequency as an object moves toward or Away from an observer =Doppler Effect Toward increase in frequency away decrease

More Related