Matter & Energy
Identify the elements in 4CH3OH and identify the number of atoms of each element
Carbon, Hydrogen, Oxygen
4 Carbon, 16 Hydrogen, 4 Oxygen
Which statement described represents Newtons' third law of motion and why?
A. Due to inertia, a soccer ball will not roll until it is kicked.
B. A soccer ball applies a force equal and opposite to the direction of the force of a soccer player’s foot kicking the ball.
C. The force applied to a soccer ball when it is kicked is equal to the mass of the ball multiplied by the acceleration of the ball.
Statement 2 Because it displays that for every action there is an equal and opposite reaction
When two plate tectonics move towards each other is called.....
What are the landforms that they could lead to...(3 possible scenarios)
Convergent
Mountains
Volcanoes
Volcanic Islands-trenches
What are the three parts of the cell theory
1. Living organisms are made up of cells.
2. Cells are the basic structural/organizational unit of all organisms.
3. All cells come from pre-existing cells.
On an energy pyramid which statement (s) is/are TRUE...& how much % energy gets passed from one trophic level to the next
A. Producers provide energy directly to the organisms in all trophic levels above them
B. Primary consumers transfer energy to the trophic level below and above them
C. Tertiary consumers do not receive all the energy from the trophic level below them, because some energy is lost to the environment
D. Secondary consumers get the most energy
Statement C is correct
Only 10% energy gets passed
Identify the elements (K2CO3)2 and numbers of atoms of each element and the total number of atoms
Potassium Carbon and Oxygen
Potassium 4 atoms, Carbon 2 atoms, Oxygen 6 atoms
Total atoms: 12 atoms
The force of an object is 12 N and the mass is 1.2 kg, what is the acceleration?
10 m/s^2
During a 1st quarter and 3rd quarter moon phases, what types of tides do we experience
Is it the highest or lowest difference in tides and why?
Neap tides
Lowes difference, gravitational forces cancel each other
Name three ways we depend on oceans
1.Food
2. Transportation
3. Recreational
4.Oxygen
5.Minerals
6. Medicine
Energy that is in motion is also called _____________
Energy that is stored is also called _______________
Describe an example of an energy transformation
Kinetic
Potential
In a roller coaster, at the highest point you have the highest potential and as you move down the potential energy transforms to kinetic
Why is this chemical equation relate to the conservation of mass: H2 +O2 -------> H2O
If I use 15 grams of O2 and the products equals 20 grams, how much H2 was needed to carry reaction?
Relate to the conservation of mass because the number of atoms stay the same.
The grams of H2 needed is 5 grams
Object A is pushed 12 N to the left, and 2 N to the right. Are the forces balanced or unbalanced?
Object B is pushed 2 N to the left, 2N to the right and then 2 N to the left. Are the forces balanced or unbalanced?
Unbalanced, because the net force is not equal to 0
What are the evidence of continental drift- List 2 evidence
1. The fit of the continental coastlines
2. Identical fossils in different continents 3
3.Glacial formations in areas that have tropical climate
What are the differences between primary succession and secondary? Which one takes longer to reach a climax community and what are their pioneer species?
Primary succession starts with bare rock, lichens first organisms and takes longer
Secondary starts with soil, grass first organisms, takes less time
An object travels a total distance of 15 miles in 2 hours. What is the average speed?
7.5 miles/hour
A teacher added vinegar to a piece of chalk. Students immediately observed bubble forming around the chalk.
After the bubbles stopped forming, the students noticed the chalk getting smaller. They tried recovering the chalk, but it was no longer visible.
What kind of change did the chalk undergo and what is the evidence?
Chemical change
Evidence:
1.New substance formed
2.Irreversible Change
3. Gas formation
A mother and a daughter press their hands together and then push apart while ice skating.
Immediately after they push away from each other, how does the motion of the mother and daughter change?
Explain the direction each person will move and who will move with greatest acceleration.
Mother will move to the left, and daughter to the right
Daughter will move with greater acceleration
Make two observation of the Barnard Star in comparison to the sun
1.Barnard star is cooler and dimmer than the sun and both stars are located in the main sequence
What are the components that prokaryotes and eukaryotes have the same
What are the differences
-dna
-ribosomes
-cell membrane
(prokaryotes no nucleus or membrane bound organelles)
Draw the motion graph of a turtle that moves at constant speed for 3 minutes,after speeds up for 2 minutes, after stops for 3 minutes, and after returns back to start
Image
Give one example of a metal and 2 properties of metals
Give one example of a metalloids and 1 property of metalloids
Give one example of non-metals and 2 properties of non-metals
Metals-Conductors, shiny, malleable, ductile
Non-Metal-Insulators, dull, brittle
Metalloids: Characteristics of both
Based on the image, and description will the crate move left, right, or not at all?
What is the direction and magnitude of the net force on the crate.
Answer in complete sentences.
The crate will move to the left.
The magnitude and direction of the net force will be 13 N to the left.
Illustrate how the tilted earth revolves around the sun
What difference between Earth North and south hemisphere are being depicted in your illustration?
What cause these differences?
The north and the south hemisphere have opposite seasons, this is caused because of the tilt of earth's axis and the revolution around the sun.
What are the differences between abiotic and biotic organisms? Provide an example of each
Given an example how organisms in a rainforest may compete for biotic factors such as food and abiotic factors such as availability of light and water, range of temperatures, or soil composition
Biotic-Living
Abiotic-Non-Living
What types of currents drive weather patterns? Describe these currents.
During a low pressure what type of weather are we most likely to experience and why
What are your 4 types of fronts and describe a litle of them
Convection currents-warm air rises and cool air sinks
Low pressure- rainy weather (warm air rose, condense to clouds, led to precipitation)
Warm front, cold front, stationary, and occluded