Waves
Name all the waves of the EM Spectrum, in any order.
Radio, Infrared, Microwaves, Gamma, Visible Light, Ultraviolet, X-Ray
The four major forces of Planet Earth discussed in THIS class
Gravity, Electricity, Magnetism, Electromagnetism
What does M.E.L.T.S stand for? (Include each letter)
Different types of energy: Mechanical, Electrical, Light, Thermal, Sound
The smallest living organism thing inside of all animals.
Cells
Planet Earth is orbited by what landmass?
The moon
Name at least two examples of mechanical waves.
Ocean Waves, Soundwaves, Seismic Waves, Rope Waves --
True or False: Magnets can have positive and negative charges, while only batteries have north and south poles.
What types of energy combine to make mechanical energy?
Kinetic Energy + Potential Energy
Name 3 organelles present inside of animal cells.
Nucleus, Mitochondria, Vacuole, Centriole, Nucleolus, Golgi Body, Smooth ER, Rough ER, Ribosomes, Cell Membrane, Cytoplasm, Microtubules
True or False: The moon has an affect on the tidal behavior of Earth's oceans.
True -- The moon affects the tide.
Name the EM Spectrum in order from STRONGEST wave to WEAKEST wave.
Gamma, X-Ray, Ultraviolet, Visible Light, Infrared, Microwave, Radio Wave
Write the Force formula. Calculate the force of an object that has a mass of 66 kg and an acceleration of 15 m/s.
Force = Mass X Acceleration
Force = 66 X 15 m/s = 990 N (newtons)
Describe the energy conversions that occur when you turn on a light switch. Include all types of energy produced by the standard lightbulb.
The electrical energy from the wall/power source is being converted into thermal and light energy inside of the lightbulb.
Name the four (4) levels of organization of living things.
Cells -- Tissues -- Organs -- Organ Systems
Name the 4 layers of Planet Earth in order from top to bottom.
Crust -- Mantle -- Outer Core -- Inner Core
What does the wavelength of a wave describe? What does the amplitude describe?
The wavelength is how far the wave can travel, the amplitude is how tall/big the wave is.
What is the value of gravity on Planet Earth? Would this value be higher or lower on a place like the Moon (where people can jump higher)?
The value of gravity on Earth is 9.8 m/s and this value would be lower on the Moon. Lower gravity = higher jumps.
Calculate the GPE of a man that weighs 45 KG standing at a height of 75 ft.
45 X 9.8 X 75 = 33075
33075 joules
Which organ system is responsible for controlling the actions/responses of every other system in the body?
The nervous system
Name three (3) renewable energy sources.
Hydroelectric Power, Solar Power, Wind Power, Geothermal, Tidal, Biomass --
Why can EM Waves from the Sun travel through space to reach Planet Earth? Name at least two types of waves received from Sunlight.
All types of waves are released from Sunlight (radio-gamma) and the EM Waves can reach Earth because they can travel through a vacuum (which Space is).
Describe Newton's 1st Law of Motion. Provide 1 example of how this Law can be deadly.
Newton's 1st Law: An object in motion stays in motion.
Example: Car crashes, Falling off cliffs, etc.
Light energy is closely related to what other concept of 8th Grade Science. Which concept, and why?
Light energy is related to the EM Spectrum. Light energy is carried in different amounts by different types of EM waves.
True or False: Babies have more bones than the average adult human. Explain your answer (1-sentence or less)
True -- Babies have more bones, but they fuse together as we get older.
Name the greenhouse gas most produced by humans that contributes to the overall rise of global temperatures on Planet Earth. What is this phenomena called?
Carbon Dioxide via cars and pollution. The phenomena is called Climate Change/Global Warming.