Forces
Energy
Distance v Time Graphs
WED & Landforms
Nature of Science
100
What happens when an unbalanced force acts on an object?
The motion of the object changes
100
Name an example of kinetic energy converting into potential energy
A roller coaster car moving toward the top of the next hill;
Throwing a ball straight into the air
100
Look at the following graph. What object has the greatest speed? What object is the slowest?
A is the fastest
D is the slowest
100
Through freezing and thawing, a boulder is broken into smaller pieces. What is this an example of?
physical weathering
100
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?
Another scientist could do the same experiment and get similar results
(Replication)
200
What team will win the following tug of war game?
Neither; this is a balanced force. Both teams are equal.
200
Describe the Potential Energy, Kinetic Energy, & Mechanical Energy at points X and points Z.
X- Highest PE, Lowest KE, Same ME
Z - Highest KE, Lowest PE, Same ME
200
Describe the motion in the following graph.
Moving at a constant speed
200
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?
Chemical Weathering
300
Calculate the Net Force of the following and identify whether or not it is balanced or unbalanced.
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.
Unbalanced; 6N to the right
300
Which of the following best explains how destructive forces continually tear down and build up Florida’s coastline?
A. Gravity pulls and pushes sediment and water, shaping the coastline.
B. Weathering, erosion and deposition by wind and water cause shaping of the coastlines.
C. Deposition and storage of sediment shapes the coastline of Florida.
D. Waves are the only factor that push sediment, shaping and building the coastlines.
B. Weathering, erosion and deposition by wind and water cause shaping of the coastlines.
400
All of the following describe a way glacier melt can affect the coast except for one. Which of the following responses is incorrect?
A. An increase in sea level causes an increase in flooding.
B. An increase in sea level causes more erosion of beaches and coastlines.
C. An increase in sea levels causes a loss of land.
D. An increase in sea levels causes additional coastline to form.
D. An increase in sea levels causes additional coastline to form
500
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.