Answers by Educators Question Database

What is a function of hair?
In a nuclear power plant, nuclear energy is first changed to _____________ energy.
_____________ is a fossil fuel.
Unlike other forms of energy, thermal energy is hard to______________.
A kite stuck in a tree has _____________ energy.
A limiting factor for using nuclear energy is the _______________ produced.
In every energy transformation, some energy is always lost as ____________ energy.
A burning fire produces _____________ energy.
When a rubber band is stretched, it has ______________ energy.
The form of energy in fossil fuels is ______________ energy.
When you see a change in the environment, you know that _______________ has been transferred.
If you blow between two table tennis balls suspended about 2 cm apart, the balls will _____________._.
As the speed of a fluid increases, _______________________.
A photovoltaic converts ___________ energy
Most plants use a _____________ to turn a generator.
A blimp flying around over the Super Bowl has ______________ energy.
_____________ is an alternative resource.
A green plant has ___________ energy.
What is a simple machine that is a flat, sloped/slanted surface, or ramp??
What is a machine that does work with only one movement and changes the direction of a force?
The rate at which work is done is _______________.
What is a machine that is made up of two or more simple machines?
What is a simple machine that is an inclined plane wrapped around a cylinder post?
If you are standing on both feet and then stand on one foot, you have ___________ the pressure on the ground.
In a hydraulic system, the force exerted on the large piston is _____________ the force exerted on the small piston.
Work is done when a/an ___________ causes an object to move in the same direction that the _____________ is applied.
The number of times a machine increases the input force is the _______________ __________________ of the machine.
What is a simple machine that moves and can have one or two sloping sides?
What is a simple machine that is any rigid rod or plank that pivots, or rotates, about a point?
A machine that changes only the direction of a force has a mechanical advantage of ___.
A lever with a mechanical adantage greater than 1 is used to ____________________.
The work output of a machine divided by the work input is the _____________ of the machine.
A fixed pulley that is used to lift a block does which one of the following?
A winding mountain road is an example of a
Three of the following simple machines are basically the same. The one that does NOT belong with the group is the ____________________.
As an object sinks in a fluid, the buoyant force _______________.
What happens during a lunar eclipse?
Which of the following is not a phase of the moon?
Which of the following causes the phases of the moon?
Which of the following results from the fact that the moon is tidally locked to Earth?
A student argues that because Earth is closest to the sun at perihelion, all of Earth experiences summer at perihelion. Is the student correct?
Tides on Earth are influenced by
At which position in Earth's orbit is Earth closest to the sun?
Which of the following is the primary cause of seasons on Earth?
The spin of a body on its axis is called
What event occurs when one celestial object or that object’s shadow obscures the view from Earth?
Who was the leader of Germany during WWII?
Who was the fascist leader of Italy during WWII
Who was the leader of Japan during WWII?
Who was the leader of the United States during WWII?
Who was the leader of Great Britain during WWII?
Who were the 3 main Axis Powers during WWII?
Germany is located north of what other country?
Which 2 countries from WWII were island nations?
Who was the American president for both the Great Depression and the start of WWII?
What conditions helped cause WWII?
What is genocide?
What term describes a factory in which workers are employed for long hours at low wages in unsafe conditions?
Which one of the following is NOT an example of genocide?
Which of the following is an example of a human right guaranteed by the Universal Declaration of Human Rights?
Why is there conflict over blood diamonds?
Which statement is true about Apartheid?
Why was Nelson Mandela an important historical figure?
Which one of the following contributes most to HIV/AIDS deaths in Africa?
Which of the following describes a policy where a stronger country takes over another country or territory to access resources for economic gain?
Why were the Jews targeted in Europe during the Holocaust?
The analysis of decisions made by individuals and groups that are often focused on what is right and wrong is part of...
Which is NOT a reason why Europe wanted to colonize Africa?
During which event is Earth's axis tilted either farthest away from or closest to the sun?
The International Space Station is an example of
Which term describes any object that revolves around a larger object in space?
At which position in Earth's orbit is Earth farthest from the sun?
A student argues that the International Space Station is not a satellite because it is human-made. Is the student correct?
During which event do the hours of daylight on Earth equal the hours of night?
Planet A, planet B, and planet C all have equal masses. Planet A is located between planets B and C, but planet B is twice as far away from planet A as planet C is. Which planet exerts the greater gravitational pull on planet A?
Which of the following is the primary cause of tides on Earth?
A student argues that because Earth is farthest from the sun at aphelion, all of Earth experiences winter at aphelion. Is the student correct?
Which of the following space objects is a satellite?
Which of the following systems breaks food into nutrients that can be used by the body?
Which of the following is a harmful waste material that leaves the blood and travels through the lungs before leaving the body?
Where does oxygen-rich blood go after leaving the lungs?
The digestion process begins in which of the following?
Which list gives the correct order of food traveling through the digestive system after it is swallowed?
Which best describes the role of the esophagus in digestion?
Which organ removes cell waste from the blood?
Where is urine stored?
What is the correct order from simplest to most complex
If you were observing cells under a microscope, what will lead you to infer that the cells are animal cells?
Which of the following systems is responsible for the body’s movements and exertion of force on objects in the environment?
The primary function of the respiratory system is?
The part of Earth that contains the gases.
The part of Earth that consists of water.
The part of Earth that consists of life.
The part of Earth consists of land.
The process of water being heated and moved from the hydrosphere and geosphere and atmosphere.
The process of water vapor being released from plants during photosynthesis.
The process of water vapor in the atmosphere cooling back down to a liquid.
The process of water in the atmosphere returning to the geosphere and hydrosphere.
A heat transfer where two things touch, like when clouds touch nuclei.
A heat transfer in a liquid or gas where the warmer part rises and cooler part sinks, like when water vapor rises.

 

 

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