Potential
Kinetic
Heat
Energy
Miscellaneous
100
What type of energy does the water at the top of Niagara Falls possess?
Gravitational Potential Energy and Kinetic Energy
100
The image shows three positions (W, X, and Y) of a pendulum during its motion.
If the pendulum swings consistently according to the Law of Conservation of Energy, which statement is true?
A Potential energy will be maximum at positions W and Y and minimum at X.
B Kinetic energy will be maximum at positions W and Y and minimum at X.
C Potential energy will be maximum at positions W and X and minimum at Y.
D Kinetic energy will be maximum at positions W and X and minimum at Y.
A Potential energy will be maximum at positions W and Y and minimum at X.
100
A student notices that macaroni placed in a beaker of boiling water moves in a circular path around the beaker, as shown in the diagram. A classmate says that this occurs due to convection.
Which statement best describes why the classmate is correct or incorrect?
A The classmate is correct; when heat is transferred by fluid particles moving in a circular direction, it is called convection.
B The classmate is incorrect; when heat is transferred by fluid particles moving in a circular direction, it is called sublimation.
C The classmate is correct; when the heat transfer occurs due to the direct contact between the materials, it is called convection.
D The classmate is incorrect; when the heat transfer occurs due to the direct contact between the materials, it is called conduction.
A The classmate is correct; when heat is transferred by fluid particles moving in a circular direction, it is called convection.
100
The image shows the number of organisms present at each trophic level of a food chain in a grassland ecosystem.
If more of the same species of snake migrates into the area, what is a potential effect on the ecosystem?
A The population of grass will decrease.
B The population of hawks will decrease.
C The population of hawks will increase.
D The population of rabbits will increase.
C The population of hawks will increase.
100
Which actions will help limit the impact of invasive species in an ecosystem?
A Sell the species at a garden store
B Cut and remove non-native vegetation in a forest and remove limits on catching invasive fish species
C Transport a non-native species from one state to another state
D Transport a boat from one state to another state for fishing purposes in a local lake
B Cut and remove non-native vegetation in a forest and remove limits on catching invasive fish species
200
Andrea places a pan half filled with water on a hot plate to warm the pan. She then adds a spoonful of glitter to the pan of water and observes that the glitter particles begin to move slowly.
What will happen to the glitter particles as the water in the pan starts to boil?
A The glitter particles will slow down.
B The glitter particles will speed up.
C The glitter particles will stop moving
D The glitter particles will move at the same speed.
B The glitter particles will speed up.
200
A stone is placed in a thick rubber band. The rubber band is stretched and then released. The stone rises in the air and then falls down.
Which option correctly identifies an instance when potential energy is transformed into kinetic energy?
A releasing the rubber band
B stretching the rubber band
C stone rising in the air
D stone reaching its highest point in the air
A releasing the rubber band
200
A chef arranges pieces of chicken on metal sticks and places the metal sticks just above and directly on a wood-fired grill. The chicken begins to heat up and cook.
What methods of heat transfer cause the chicken to cook?
A conduction, convection, and radiation
B conduction, convection, and insulation
C convection and radiation only
D convection and insulation only
A conduction, convection, and radiation
200
Why is it important to maintain biodiversity among corn crops consumed by people?
A Having different varieties of corn present in a field makes the corn less tasty to animals that might eat the crop, ensuring more corn is available to humans.
B Having different varieties of corn present in a field ensures that the farm will also have different varieties of cotton and soybeans.
C If a disease were to wipe out a variety of corn, surviving varieties of corn would be able to be grown to provide food.
D Humans have to eat different varieties of corn on a daily basis, not just one kind, to be able to survive.
C If a disease were to wipe out a variety of corn, surviving varieties of corn would be able to be grown to provide food.
200
Which change will occur in an ecosystem after a landslide?
A Existing trees will stop growing
B The trees will become extinct
C New trees and vegetation will begin to grow
D The trees will become a source of for more animals in the area
C New trees and vegetation will begin to grow
300
Which statement is true regarding kinetic energy and potential energy?
A Both kinetic energy and potential energy rely on motion.
B Both kinetic energy and potential energy are stored energy.
C Potential energy relies on motion, while kinetic energy is stored energy.
D Kinetic energy relies on motion, while potential energy is stored energy.
D Kinetic energy relies on motion, while potential energy is stored energy.
300
A student holds each of four objects of an unknown mass (W, X, Y, and Z) at the same height, releases each, and records the amount of kinetic energy each object contains as it reaches the ground.
Which conclusion accurately compares each object?
A The mass of Object W is greater than the mass of Object Z.
B The mass of Object Y is less than the mass of Object X.
C The mass of Object Z is greater than the mass of Object Y.
D The mass of Object X is less than the mass of Object W.
C The mass of Object Z is greater than the mass of Object Y.
300
A keystone species is a plant or an animal which plays an important role in the functioning of an ecosystem. Sea otters are a keystone species found along the coast of the Pacific Ocean. They are now considered an endangered species.
Why is it essential to preserve sea otters?
A to maintain the biodiversity of the ocean
B to decrease the amount of carbon dioxide in the ocean
C to increase the amount of oxygen in the ocean
D to maintain the phytoplankton population in the ocean
A to maintain the biodiversity of the ocean
300
The department of forestry in an area started a conservation program to restore degraded land. As part of the program, they distributed seeds of a variety of fruit trees for an organic farm, which became a source of income for local people when the fruit was harvested.
What is the most likely impact of the conservation program?
A It will increase the biodiversity in the area.
B It will decrease the quality of water in the area.
C It will decrease the quantity of the topmost layer of soil in the area.
D It will increase the amount of greenhouse gases in the area.
A It will increase the biodiversity in the area.
300
Does an ecosystem with many different types of plants and animals have more or less biodiversity/stability/sustainability?
More Biodiversity/Stability/Sustainability
400
What type of energy does the roller coaster have when it is at its highest point?
Gravitational Potential Energy
400
The table shows four moving objects with different masses and speeds.
Which object has the most kinetic energy?
A Object 1
B Object 2
C Object 3
D Object 4
D Object 4
400
Due to global warming, lichens growing in the Arctic are being replaced by shrubs. Lichens provide food to caribou, which in turn are a food source for predatory bears and wolves in the Arctic region.
What could be an impact of the loss of lichens in the Arctic region?
A increase in the populations of animals feeding on shrubs in the Arctic region
B increase in the temperature of the Arctic region
C decrease in the biodiversity of the food web in the Arctic region
D decrease in the amount of sea ice in the Arctic region
C decrease in the biodiversity of the food web in the Arctic region
400
Dams are structures made across rivers that hold back water and regulate the water’s flow to help generate electricity.
What is a limitation of constructing dams?
A Dams block the movement of fish, reducing their habitable space.
B Dams decrease the availability of water for irrigation.
C Dams reduce the chances of floods in the flood plain.
D Dams help generate electricity from moving water.
A Dams block the movement of fish, reducing their habitable space.
400
Heat Transfer through Direct Contact
Heat Transfer through Open Space Waves
Warm air Rises and Cool air Sinks because of Density is called___________
Conduction
Radiation
Convection
500
A student builds an electric circuit using a battery, a switch, a bulb, and a buzzer, as shown.
Which statement correctly describes the energy transformation that happens when the switch is closed?
A Chemical energy is transformed into electrical energy, which is transformed to light energy in the bulb and chemical energy in the buzzer.
B Chemical energy is transformed into electrical energy, which is transformed to heat energy in the bulb and light energy in the buzzer.
C Chemical energy is transformed into electrical energy, which is transformed to sound energy in the bulb and light energy in the buzzer.
D Chemical energy is transformed into electrical energy, which is transformed to light energy in the bulb and sound energy in the buzzer.
D Chemical energy is transformed into electrical energy, which is transformed to light energy in the bulb and sound energy in the buzzer.
500
A metal spoon is used to stir hot chocolate in a ceramic mug. Which statement describes the direction of heat transfer that occurs?
A from the spoon to the mug
B from the mug to the spoon
C from the spoon to the hot chocolate
D from the hot chocolate to the spoon
D from the hot chocolate to the spoon
500
The graph shows the number of species of birds, mammals, reptiles, and plants in an area in 2000 and 2015.
Which conclusion is supported by the data?
A The health of the ecosystem declined between 2000 and 2015.
B The health of the ecosystem improved between 2000 and 2015.
C Between 2000 and 2015, the biodiversity of animals decreased, but the biodiversity of plants increased.
D Between 2000 and 2015, the biodiversity of plants decreased, but the biodiversity of animals increased.
A The health of the ecosystem declined between 2000 and 2015.
500
Curbside recycling requires specialized trucks and centers as well as additional employees to collect, transport, and process recyclable materials. Recycling trucks and centers contribute to air pollution by releasing carbon dioxide and carbon monoxide gases.
Which option correctly describes a cost-benefit ratio of curbside recycling?
A The cost to operate curbside recycling is air pollution, and a benefit is a low processing fee for residents.
B The cost to operate curbside recycling is more reuse of materials, and a benefit is less trash in landfills.
C The cost to operate curbside recycling is a large amount of expensive supplies, and a benefit is less removal of natural resources.
D The cost to operate curbside recycling is high community support, and a benefit is the creation of more jobs.
C The cost to operate curbside recycling is a large amount of expensive supplies, and a benefit is less removal of natural resources.
500
True/False
Energy can be created or destroyed.
False Energy is only transferred from one form to another.