Energy
Electricity
Mechanisms
Colors
Waves
100
What is the Kinetic Energy equation?
KE = 0.5 x mv2
100
What is electricity?
a flow of electrons
100
What is this type of gear system called?
Worm drive
100
What 2 colors make green?
blue and yellow
100
Waves are measured in
wave lengths or frequency
200
What is the Potential Energy equation?
PE=mgh
200
What is electricity measured in?
volts
200
what is the ratio between a pulley and a 50 gm weight on one end?
50 gm weight so both sides are even
200
What are the colors that make the color Brown
To mix a brown you mix a primary with its complementary color, so purple and yellow; blue and orange; or red and green. There is a diverse amount of Brown in nature. This color can be mixed with any other color.
200
How do waves move?
In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.
300
Renatta Gass is out with her friends. Misfortune occurs and Renatta and her friends find themselves getting a workout. They apply a cumulative force of 1080 N to push the car 218 m to the nearest fuel station. Determine the work done on the car.
2.35 x 105 J
300
What is the Mirror Equation?
1/f=1/di + 1/do
300
Finish this problem
KE = 1/2 mv2 = 1/2 (20) (2)2
40 J
300
Can light be the color black?
No
300
What are some of the different types of waves
X-Rays, ultraviolet, visable light, gamma rays, radio waves, microwaves, infrared
400
Sheila has just arrived at the airport and is dragging her suitcase to the luggage check-in desk. She pulls on the strap with a force of 190 N at an angle of 35° to the horizontal to displace it 45 m to the desk. Determine the work done by Sheila on the suitcase.
7.0 x 103 J
400
What is a circuit?
a conductor that is used to transport electricity from one place to another
400
What is work?
The work
400
What is blue
yes
400
What are the wave formulas?
f = c / λ = wave speed c (m/s) / wavelength λ (m). The formula for time is: T (period) = 1 / f (frequency). The formula for wavelength is λ (m) = c / f. λ = c / f = wave speed c (m/s) / frequency f (Hz).
500
In April of 1976, Chicago Cub slugger Dave Kingman hit a home run which cleared the Wrigley Field fence and hit a house located 530 feet (162 m) from home plate. Suppose that the 0.145-kg baseball left Kingman's bat at 92.7 m/s and that it lost 10% of its original energy on its flight through the air. Determine the speed of the ball when it cleared the stadium wall at a height of 25.6 m.
85.0 m/s
500
Can you get shocked from electrically charged water?
yes
500
What is the work equation?
W = F × D × cos(Θ)
500
Why is the sky blue?
blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
500
A distance between two consecutive crests is called the wave’s:
Period (B) Frequency (C) Amplitude (D) Wavelength
The frequency of a wave is doubled when the speed stays the same. Which of the following is true about the wavelength?
Doubles (B) Quadruples (C) Halved (D) Decreased to one-forth
Answer for 1 is D
Answer for 2 is D