Types of Energy
Kinetic Energy
Potential Energy
Thermal Energy
Waves
Energy Potpourri
100
BONUS POINTS!
+2 for each of you +100 for both teams
100
What is Kinetic Energy?
The energy of motion.
100
What is potential energy?
Stored energy
100
heat flows from..?
warmer to cooler temperature
100
Name 4 parts of the Electromagnetic Spectrum
Radio, Microwaves, Infrared, Visible Light, Ultraviolet, X-rays, Gamma Rays
100
What is the unit for Energy?
Joules
200
Name an example of chemical energy.
Eating food, Batteries, gas in a car, fuel in general.
(Chemical energy is energy stored in the bonds of atoms)
200
Which vehicle has the most K.E
The truck
200
Would mass or height have more effect on the potential energy?
Height. The higher something is, the the more gravity wants to bring it down
200
What happens to particles when MORE thermal energy is added to them?
The speed up/start moving faster.
200
What do the differences in wavelengths have to do with color?
Colors are seen based on how long or short their wavelengths are. Long= Red, Short= Violet. Everything else in between
200
Out of the three kinds of heat transfer methods, how does solar energy transfer?
Radiation
300
What energy does this gif show? What is the definition of this energy?
Mechanical Energy- The total kinetic and potential energy in an object.
300
Where would to KE be the highest?
E -right before it hits the ground
300
3- The highest point and not moving.
300
The Three ways thermal energy is transferred are...
What is Radiation, Conduction, Convection
300
How do we SEE anything. Describe what is happening with the waves.
Light comes from the sun or light source and is reflected off an object and that reflect waves enters our eye.
300
What is the law of conservation of energy?
Energy cannot be created nor destroyed, only transferred.
400
Which energies move in waves? (there are 5)
Radiant, Light, Solar, Sound and seismic
400
What is the formula for K.E?
(1/2)m x v2
One half-mass x velocity-squared
400
What is the formula for P.E?
m x G x h
mass x Gravity x height
400
If I have a mug at 50*C and poured in hot chocolate at 80*C. What will happen to both of these objects after a few minutes.
The thermal energy in the Hot chocolate will transfer to the mug until they reach equilibrium. The temperature of the mug will increase while the temperature of the hot chocolate will decrease.
400
What is opaque, transparent and translucent and give an example of each.
Opaque- Can't see through
Translucent- Can kind of see through
Transparent- Can see through completely
400
Which of the following is a good conductor? explain your reasoning
a) plastic
b) steel
c) wax paper
d) silk
b) steel because it is made of metal which are good conductors
500
Which energy occurs when an atom is broken or fused together?
Nuclear energy
500
A baseball with a mass of 0.145 kg is thrown at a speed of 35 m/s. Calculate the kinetic energy of the baseball at that speed.
(1/2)0.145kg × (35m/s)2
.0725 x 1,225m2/s2 = 88.8 J
500
A 60 kg student climbs up a flight of stairs that is 4 meters high. Calculate the gravitational potential energy gained by the student at the top of the stairs.
60kg x 9.8m/s2 x 4m= 2,352 J
500
Name the processes 1-4 that are happening when the state of matters are changing. (partial credit allowed)
1- Melting
2- Freezing
3- Evaporation
4- Condensation
500
Name every part of this wave. (100 points per correct answer)
1- Amplitude
2- Crest
3- Wavelength
4- Trough
5- Frequency
500
Explain the kinds of energy transfers that are being experienced in this scenario?
Before riding home from school, a cyclist eats a granola bar for a quick boost. As they pedal faster down the road, the spinning wheels turn a small generator attached to the bike tire, powering a bright headlight for the ride. After several minutes, the headlight feels warm to the touch.
chemical energy into mechanical energy into electrical energy into thermal energy