Energy for Kallay
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| 2 Sources of Energy | Renewable - Nonrenewable
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| 5 types of renewable energy | Solar, Wind, Hydropower, Biomass(burn organic matter), Geothermal (heat from under the earth)
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| 5 types of nonrenewable energy | Coal, Oil, Natural Gas, Petroleum, Nuclear
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| 7 Forms of Energy | Mechanical, Thermal, Chemical, Electrical, Sound, Light, Nuclear
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| Example of Mechanical Energy | Gears on a bike, rolling a bowling ball
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| Example of Thermal Energy | Oven, People, Electrical Appliances
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| Example of Chemical Energy | Digesting Food, Respiration
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| Example of Electrical Energy | Outlet, TV, Lamp
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| Example of Sound Energy | Drop a bowling ball, slap hands, talking
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| Example of Light Energy | Light Bulb, Traffic Lights, TV
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| Example of Nuclear Energy | Sun, Stars, Radioactive atoms and elements
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| 2 States of Energy | Potential, Kinetic
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| 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
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| Define Kinetic Energy and give an example | The energy of motion; Going down the hill on a roller coaster
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| When energy is stored it is called? | Potential Energy
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| When energy is moving it is called? | Kinetic Energy
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| List Energy Transformation from the Sun to your TV | Sun-Plants-Coal-Power Plant-Turbine-Transformer-Powerlines-House-TV
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| Define Energy | The ability to do work
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| What do we measure energy in? (Units) | Joules/Newton-Meters
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| Energy associated with motion is called what? | Mechanical (Kinetic
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| The internal motion of atoms is called? | Thermal Energy
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| Sound is what kind of energy? | Mechanical (Kinetic)
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| Which energy source cannot be replaced? | nonrenewable resources
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| What type of fuel is formed from buried plants? | Fossil Fuels
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| How do you calculate work? | Work = Force x distance
W=FD
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| How do you calculate Power? | Power = (Force x Distance) / Time
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| How do you calculate Potential Energy? | PE = MGH
M=Mass, G=accelaration due to gravity, H=Height
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| How do you calculate Kinetic Energy? | KE = 1/2m(v squared)
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| 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
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| What does Friction always produce? | Heat
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| 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
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| 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.
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| Law of Conservation of Energy? | Energy cannot be created or destroyed
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| Define Closed System? | When a group of objects only transfer energy to each other
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| When a roller coaster moves, what helps overcome friction? | Energy
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| What causes some of the potential energy of a moving roller coaster to be converted to thermal energy? | Friction
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| 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
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| On a roller coaster, where is potential energy the greatest? | Top of the first hill
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| Define an Open System? | When energy is transferred from one object to another
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| Why is walking on ice hard? | The smooth surface generates little friction
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| What type of energy is always produced when energy is converted from one form to another? | Thermal Energy
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| What kind of energy does the sun give off? | Radiant and thermal
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| Is it possible to avoid friction? | No
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| What is a Wave? | A disturbance that transfers energy from place to place
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| What are 3 common places we experience waves? | Water, Sound, Light
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| How do the particles in Longitudinal Waves move? | Paralllel to the direction the wave is moving
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| How do the particles in Transverse Waves move? | They move at right angles to the direction of the wave travel
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| 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
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| What is Wavelength? | The length of a wave measured from crest to crest
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| What is Amplitude? | The height or depth of a wave
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| A ___________ energy wave is characterized by ___________ amplitude | High or Low. Think Big Fast Boat = Big Waves
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| What is diffraction? | The tendency of waves to bend around corners
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| What are Compressions? | The part of a longitudinal wave where the particles of the medium are close together
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| What are Rarefactions? | The part of a longitudinal wave where the particles of the medium are far apart
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| What are the parts of a Wave? | Crest, Trough, Wavelength, Amplitude, Resting point
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| What happens to the frequency of waves when you increase the rate of vibration? | Frequency increases
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| What happens to the wavelength when you increase the rate of vibration? | The wavelength decreases
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| What is the relationship between wavelength and frequency? | The higher the frequency, the smaller the wavelength
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| What is the highest point of a wave | Crest
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| What is the lowest point of a wave? | Trough
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| What causes a movement that creates a wave or repeating motion? | Vibration
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| The number of waves per second? | Hertz
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| The height of a wave | Amplitude
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| The change of position of an object? | Motion
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| The number of cycles or periods per unit of time? | Frequency
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| What is energy disturbance that travels through a medium? | Wave
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Created by:
erickben
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