Weathering and Erosion
Erosion and Landforms
Potential and Kinetic Energy
Forces
Gravity, Speed, and Motion
100
The breakdown of rock material through physical and chemical processes.
What is a weathering?
100
The following landform is a natural elevation of Earth’s surface that rises to a summit.
What is a mountain?
100
The ability to cause change.
What is energy?
100
A push or a pull in science.
What is a force?
100
Two objects must have this for gravity to exist between them.
What is mass?
200
How does chemical weathering differ from physical weathering?
Chemical weathering happens when the bonds that hold minerals together break; physical weathering happens when physical actions wear away and crack the rocks.
200
Strong waves can erode coastlines like the Gulf Coast of Florida. Which is most likely the result of erosion by strong waves? A. deltas B. sand dunes C. cliffs and bluffs D. flat, sandy beaches
What is C
200
All moving objects have this.
What is kinetic energy?
200
The combination of all the forces acting on an object.
What is net force?
200
A cyclist riding 2 km in 10 minutes is an example of this.
What is speed?
300
Water below Earth’s surface.
What is groundwater?
300
An underground cave collapsed and became plugged by sediment then was filled with water.
What is a sinkhole lake?
300
A book held in your hands has this type of energy.
What is potential energy?
300
When an object exerts a force on another, the second object exerts an equal and opposite force on the first.
What are force pairs?
300
A vector will added to the speed of an object.
What is velocity?
400
After heavy rainfall, a stream causes more erosion than usual. Which statement is the most likely reason for this? A. The stream contains less water and moves faster. B. The stream contains less water and moves slower. C. The stream contains more water and moves faster. D. The stream contains more water and moves slower.
What is C
400
Sediment being carried from one island to another is an example of this.
What is erosion?
400
Potential energy being transformed into kinetic energy is an example of this.
What is the law of conservation of energy?
400
The tendency of objects to resist a change in motion.
What is inertia?
400
What is true of an object that is in free fall?
Only the force of gravity is accelerating it.
500
When rocks are broken down by the mechanical actions of other rocks.
What is abrasion?
500
Occurs when gravity's downward pull on sediment is greater than the push of flowing water or wind.
What is deposition?
500
The sum of the potential energy due to an objects position and the kinetic energy.
What is mechanical energy?
500
When the net force on an object is not equal to 0 N.
What is an unbalanced force?
500
An athlete is running a 5-km race at an average speed of 8 km/h. She has to stop and tie her shoe. After tying her shoe she continues running at 8 km/h. Why would her average speed for the entire race be less than 8 km/h?
The total time she took to complete the race increased.
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