WED (Weathering, Erosion, and Deposition)
Landforms
Unbalanced vs. Balanced Forces
Distance vs. Time Graphs
Types of Energy and Miscellaneous
100
Write the simple definitions of weathering, erosion, and deposition
Weathering = rocks breaking
Erosion = rocks moving
Deposition = rocks stopping
100
True / False:
Landforms are responsible for changing the shape of the Earth's surface.
True!!
100
Write the difference between a balanced force and an unbalanced force.
Balanced Force = 2+ equal and opposite forces on the object
Unbalanced Force = 2+ Unequal and opposite forces on the object
100
What is the unit that we use for speed of an object?
meters / second
m/sec
100
15. A group of students want to investigate erosion occurring naturally on a riverbank. The students decide to take pictures of the riverbank each day over a period of 12 months, then record what changes they see in the photos. What is the most significant limitation to this type of investigation?
A - Qualitative data cannot be collected from photos.
B - Variables, such as the weather, cannot be controlled.
C - The exact amount of erosion cannot be measured.
D - The primary cause of erosion cannot be identified.
C - The exact amount of erosion cannot be measured.
200
Write the main difference between physical and chemical weathering.
Physical Weathering = rocks are broken down without any further changes
Chemical Weathering = rocks are broken down and its chemical composition changes (usually a creation of a new product)
200
Rivers and Glaciers play an important role in carrying sediments and transporting rocks to different location. What is the name of the process that rivers and glaciers are responsible for?
Erosion
200
Fill in the Blank:
We can calculate the net force of an object with mathematics. When there are 2+ forces in the opposite direction, you (ADD / SUBTRACT).
YOU SUBTRACT WHEN THERE ARE 2+ FORCES IN THE OPPOSITE DIRECTION.
200
Fill in the Blank:
The steeper (taller) the line, the speed of the object is _______.
Faster
200
12. Tyler is conducting an experiment in order to determine the effect that fertilizer A and fertilizer B have on St. Augustine grass. He conducts multiple trials and concludes that St. Augustine grass grows faster and thicker with the application of fertilizer A. How could Tyler make sure his results were reliable and valid?
A - Tyler could change the amount of water each sample of grass received.
B - Tyler could add a third fertilizer to his experiment.
C - Another scientist could reproduce the same experiment with similar results.
D - Another scientist could offer suggestions to make the experiment better.
C - Another scientist could reproduce the same experiment with similar results.
300
9. Through freezing and thawing, a boulder is broken into smaller pieces. What is this an example of?
A - chemical weathering
B - abrasion
C - physical weathering
D - deposition
C - physical weathering
300
Scientists notice that a river delta has been gradually getting larger and shallower over the past 50 years. What is the most likely reason for this change?
A - The river current increases and there is no change in the amount of sediment.
B - Sediment is deposited as the river slows down.
C - The river current slows down and there is no change in the amount of sediment.
D - Sediment is deposited as the river speeds up.
B - Sediment is deposited as the river slows down.
300
True / False:
When the forces are balanced, the net force of an object is NOT 0 and the object is moving.
False:
When the forces are balanced, the net force of an object is 0 and the object is NOT moving.
300
What can you conclude about a distance vs. time graph where the line is horizontal?
The object is at rest / not moving.
300
14. Naomi watches birds at a bird feeder for one week and records the number of birds seen there each day. Javier places three different types of food in separate bird feeders and records the number of birds seen at each feeder every day for one week. Which student is conducting an experiment?
A - Javier is conducting an experiment because his investigation has controlled variables.
B - Naomi is conducting an experiment because she is recording data.
C - Naomi is conducting an experiment because her investigation has controlled variables.
D - Javier is conducting an experiment because he is recording data.
A - Javier is conducting an experiment because his investigation has controlled variables.
400
Acid rain is a form of pollution. Acid rain can cause buildings and other structures made of limestone or marble to weaken and break apart. What process does this change represent?
A - Deposition
B - Mechanical erosion
C - Chemical weathering
D - Physical weathering
C - Chemical weathering
400
6. Many thousands of years ago, glaciers covered large areas of Earth’s surface. Glaciers are large blocks of ice that flow slowly over the land. Portions of the ice melted and were refrozen many times over the years. Which explanation best describes how glaciers contributed to the formation of coastlines along Florida and other states?
A - Water, from the melting ice, elevated the shoreline to form plateaus.
B - Water, from the melting ice, flooded the plains causing plants to die.
C - Water, from the melting ice, changed the shape of the coastline.
D -Water, from the melting ice, deposited sand on the ocean floor.
C - Water, from the melting ice, changed the shape of the coastline.
400
Which of the following statements demonstrates an unbalanced force?
A - A dog pushes its dog dish to the left with a force of 4 N. A cat pushes it to the right with a force of 4 N.
B - A child pushes a toy car to the left with a force of 3 N. Their parent pushes the same toy car to the right with a force of 3 N.
C - A woman pushes a bike to the right with a force of 10 N. Another woman pushes the same bike to the left with a force of 10 N.
D - A man pushes a desk to the right with a force of 16 N. Another man pushes the same desk to the left with a force of 10 N.
D - A man pushes a desk to the right with a force of 16 N. Another man pushes the same desk to the left with a force of 10 N.
400
What do you notice about the speed of the car during the first 3 seconds?
A - It speeds up, then slows down.
B - It is moving at a constant speed.
C - It is not moving.
D - It slows down, then speeds up.
B - It is moving at a constant speed.
400
Think about the scenario when you are throwing a baseball up into the air. Write the difference between the type of energy when you first throw the baseball up into the air and the type of energy when the baseball hits the highest point.
- When you first throw the baseball: Only Kinetic Energy!!!
- Baseball at its highest point: Only Potential Energy and No Kinetic Energy
500
Dunes and Deltas are important aspects of Florida's geography. Which of the following processes is responsible for the creation of deltas and dunes?
A - Physical Weathering
B - Chemical Weathering
C - Erosion
D - Deposition
D - Deposition
500
Which of the following statements is accurate about dunes and deltas?
A - A dune forms when an animal pushes sand into small hills and a delta forms when sediment is deposited at the mouth of a river.
B - A dune forms when sand is blown by the wind and gets trapped by beach grass and a delta forms when sediment is deposited at the mouth of a river.
C - A dune forms when sand is blown by the wind and gets trapped by beach grass and a delta forms when sediment is carried away from the mouth of a river.
D - A dune forms when sand is washed up on shore from the ocean and forms hills and a delta forms when sediment is carried away by a glacier.
B - A dune forms when sand is blown by the wind and gets trapped by beach grass and a delta forms when sediment is deposited at the mouth of a river.
500
What happens when a balanced force acts on an object?
A - The force must be the same as the reaction force.
B - The force is equal to the weight of the object.
C - The motion of the object changes.
D - The motion of the object does not change.
D - The motion of the object does not change.
500
Which object has the greatest speed? (A, B, C, or D)?
A
500
Which of these is the best example of kinetic energy converting into potential energy?
A - A bicyclist coasting down a long hill
B - A car engine moving the car forward
C - A roller coaster car moving toward the top of the next hill
D - A thrown ball falling toward the ground
C - A roller coaster car moving toward the top of the next hill