Ecology
This type of factor refers to NONliving things in an ecosystem.
Abiotic factor.
OTHER PRE-EXISTING CELLS
What is Newton's 3rd law?
For every action, there's an equal and opposite reaction.
The amplitude of a wave determines the ________ of the wave. (NOT volume)
ENERGY
There are two types of lizards living in the white sand desert, white lizards and dark blue lizards.
Hawks fly over the desert to find their food. What type of lizard is more likely to SURVIVE?
The white lizards, as they blend into their background.
A mushroom is an example of a ___________, because it breaks down nutrients from dead things.
Decomposer.
What are the differences between plant and animal cells? (Organelles AND how the cell looks)
Plant Cells have a square-ish shape, animal cells are round-ish.
If you push down on the ground with 20 N of force, what does Newton's 3rd law say will happen as a reaction?
The ground is pushing back up with 20 N of force.
Why can't there be sound (waves) in space?
Sound is a vibration, meaning it needs a medium to travel through.
Explain an EXAMPLE of Newton's first law
EXAMPLES TBD
In any environment, predators eat _________ to gain ___________.
Prey; energy.
Which organelle is responsible for taking sunlight (energy) and turning it into sugars (food) inside of plants?
The chloroplast.
There's 2 pigs. A mini pig (5 kg) and a mega pig (50 kg). According to Newton's 2nd law, which pig will be pulled HARDER by gravity?
The mega pig, more mass = greater force.
Describe what a high frequency, low amplitude wave would look like.
Very squished together, but very short waves.
What is the difference between rotation and revolution?
Rotation = planet spinning
Revolution= planet orbiting around another object
Plants, also known as ___________, make their own food through a process called ____________.
Producers; photosynthesis.
Which statement best describes why a lack of water in the vacuoles of plant cells cause the plants to shrivel and wilt?
A. The plants need water to balance the humidity in the air.
B. The plants need water to keep their internal stability balanced.
C. The plants need water to balance the carbon dioxide they release.
D. The plants need water to keep external temperatures balanced.
The plants need water to keep their internal stability balanced.
There's 3 balls: Plastic (2 kg), metal (4.3 kg), and rubber (3.2 kg). When all rolled with the same force, which one will accelerate the fastest?
The plastic ball, the less mass, the faster the acceleration.
λ=ʋ /ƒ
In the equation, λ = wavelength, ʋ = wave speed, and ƒ= frequency.
With a wavelength of 20 and a velocity of 40, what is the frequency of the wave?
2 m/s
Explain why we see the tides move in and out when we're at the beach - what's causing it?
The tides are caused by the moon's gravitational pull on the water, causing bulges on Earth. Earth rotated into and out of these bulges, causing high and low tides from our perspective.
What is the difference between a food CHAIN and a food WEB?
A food chain shows a linear path where ONE things eats another. A food Web shows multiple different animals that eat many different things.
What is the difference between a Eukaryotic Cell and a Prokaryotic Cell? AND give me an example of a living thing that IS Prokaryotic.
Eu = Do have a nucleus
Pro = No nuclues
example of pro: bacteria
Ms. Shapiro is being pulled by Ms. Manning. However, Ms. Shapiro is not moving. Use Newton's 3rd law to explain a reason why.
Ms. Shapiro's body is exerting an equal and opposite force to Ms. Manning's pull, so she's not moving.
Surfers usually prefer wave conditions with longer wavelengths. The equation to calculate wavelength is shown.
λ=ʋ /ƒ
In the equation, λ = wavelength, ʋ = wave speed, and ƒ= frequency. Which wave conditions provide the longest wavelength?
A. A wave speed of 10 m/s and frequency of 10 Hertz.
B. A wave speed of 15 m/s and frequency of 1 Hertz.
C. A wave speed of 25 m/s and frequency of 5 Hertz.
D. A wave speed of 30 m/s and frequency of 15 Hertz.
A wave speed of 15 m/s and frequency of 1 Hertz.
(Wavelength = 15 meters)
A student is creating a model to represent the diameter comparison of Earth and the Sun. The student uses a marble that is 10 mm in diameter to represent Earth. Using the information that the Sun is 109 times larger than Earth, which object would best represent the Sun?
A. a baseball that is 70 mm in diameter
B. a basketball that is 330 mm in diameter
C. an exercise ball that is 605 mm in diameter
D. a round rock boulder that is 1090 mm in diameter
A round rock boulder that is 1090 mm in diameter