Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Energy
Energy for Kallay
| Question | Answer |
|---|---|
| 2 Sources of Energy | Renewable - Nonrenewable |
| 5 types of renewable energy | Solar, Wind, Hydropower, Biomass(burn organic matter), Geothermal (heat from under the earth) |
| 5 types of nonrenewable energy | Coal, Oil, Natural Gas, Petroleum, Nuclear |
| 7 Forms of Energy | Mechanical, Thermal, Chemical, Electrical, Sound, Light, Nuclear |
| Example of Mechanical Energy | Gears on a bike, rolling a bowling ball |
| Example of Thermal Energy | Oven, People, Electrical Appliances |
| Example of Chemical Energy | Digesting Food, Respiration |
| Example of Electrical Energy | Outlet, TV, Lamp |
| Example of Sound Energy | Drop a bowling ball, slap hands, talking |
| Example of Light Energy | Light Bulb, Traffic Lights, TV |
| Example of Nuclear Energy | Sun, Stars, Radioactive atoms and elements |
| 2 States of Energy | Potential, Kinetic |
| Define Potential Energy and give an example | The energy an object has because of it's potential; At the top of a hill a roller coaster has potential energy |
| Define Kinetic Energy and give an example | The energy of motion; Going down the hill on a roller coaster |
| When energy is stored it is called? | Potential Energy |
| When energy is moving it is called? | Kinetic Energy |
| List Energy Transformation from the Sun to your TV | Sun-Plants-Coal-Power Plant-Turbine-Transformer-Powerlines-House-TV |
| Define Energy | The ability to do work |
| What do we measure energy in? (Units) | Joules/Newton-Meters |
| Energy associated with motion is called what? | Mechanical (Kinetic |
| The internal motion of atoms is called? | Thermal Energy |
| Sound is what kind of energy? | Mechanical (Kinetic) |
| Which energy source cannot be replaced? | nonrenewable resources |
| What type of fuel is formed from buried plants? | Fossil Fuels |
| How do you calculate work? | Work = Force x distance W=FD |
| How do you calculate Power? | Power = (Force x Distance) / Time |
| How do you calculate Potential Energy? | PE = MGH M=Mass, G=accelaration due to gravity, H=Height |
| How do you calculate Kinetic Energy? | KE = 1/2m(v squared) |
| Define Friction and give three examples? | The force that opposes motion between two surfaces that are touching. 1. Striking a match 2. Flying a Kite 3. Sanding Wood |
| What does Friction always produce? | Heat |
| What are two factors that affect Friction and the amount of heat it generates? | 1. Soft material produces more friction and heat than hard materials 2. Larger surfaces rubbing against each other produce more friction and heat than smaller surfaces |
| What are two more factors that affect Friction and the amount of heat it generates? | 3. Rough surfaces produce more friction and heat than smooth surfaces. 4. High pressure between surfaces causes more friction and heat than lower pressure surfaces. |
| Law of Conservation of Energy? | Energy cannot be created or destroyed |
| Define Closed System? | When a group of objects only transfer energy to each other |
| When a roller coaster moves, what helps overcome friction? | Energy |
| What causes some of the potential energy of a moving roller coaster to be converted to thermal energy? | Friction |
| Name 3 locations where there is friction on a roller coaster? | 1. between the wheels and the track 2. Between the cars (crashing and bumping) 3. Between the air and the cars |
| On a roller coaster, where is potential energy the greatest? | Top of the first hill |
| Define an Open System? | When energy is transferred from one object to another |
| Why is walking on ice hard? | The smooth surface generates little friction |
| What type of energy is always produced when energy is converted from one form to another? | Thermal Energy |
| What kind of energy does the sun give off? | Radiant and thermal |
| Is it possible to avoid friction? | No |
| What is a Wave? | A disturbance that transfers energy from place to place |
| What are 3 common places we experience waves? | Water, Sound, Light |
| How do the particles in Longitudinal Waves move? | Paralllel to the direction the wave is moving |
| How do the particles in Transverse Waves move? | They move at right angles to the direction of the wave travel |
| What is Frequency and what are the units it's measured in? | The number of waves produced in a given time period. Measured in Hertz |
| What is Wavelength? | The length of a wave measured from crest to crest |
| What is Amplitude? | The height or depth of a wave |
| A ___________ energy wave is characterized by ___________ amplitude | High or Low. Think Big Fast Boat = Big Waves |
| What is diffraction? | The tendency of waves to bend around corners |
| What are Compressions? | The part of a longitudinal wave where the particles of the medium are close together |
| What are Rarefactions? | The part of a longitudinal wave where the particles of the medium are far apart |
| What are the parts of a Wave? | Crest, Trough, Wavelength, Amplitude, Resting point |
| What happens to the frequency of waves when you increase the rate of vibration? | Frequency increases |
| What happens to the wavelength when you increase the rate of vibration? | The wavelength decreases |
| What is the relationship between wavelength and frequency? | The higher the frequency, the smaller the wavelength |
| What is the highest point of a wave | Crest |
| What is the lowest point of a wave? | Trough |
| What causes a movement that creates a wave or repeating motion? | Vibration |
| The number of waves per second? | Hertz |
| The height of a wave | Amplitude |
| The change of position of an object? | Motion |
| The number of cycles or periods per unit of time? | Frequency |
| What is energy disturbance that travels through a medium? | Wave |
Created by:
erickben
Popular Science sets