What is the main source of energy that the United States uses to generate electricity?
Burning wood in your fireplace is an example of what source of energy?
What is the energy called that comes from the heat of the earth
This illustration shows a hand generator. Turning the handle of the generator spins a magnet and creates an electric current that lights the bulb. Which of the following observations can be used to indicate the strength of the current created by th
A graph showing the kinetic energy of a 10 kg object at different speeds is below: Based on the information in the graph, we can predict that the kinetic energy of the object at 2 m/s would be
This graph shows the kinetic energy of both a school bus and a pick-up truck at they move at various speeds. Under which of the following conditions can the pick-up have more kinetic energy th
A graph showing the kinetic energy and speed of a moving object is provided. Which of the following can be concluded from the graph
A graph showing the kinetic energy and mass of objects traveling at 10 m/s is shown. In order for an object moving at 10 m/s to have a kinetic energy of 1800 Joules, the object must have a mass in the range of
A book sitting on a table has potential energy because of the gravitational pull of the earth. Which of the following would increase the potential energy of the book?
An illustration of a roller coaster is provided. At which point in the roller coaster's journey along the track does it have the greatest potential energy?
At which position on the diagram would an apple have the greatest potential energy
The total kinetic energy of two cars is measured before and after they crash into each other. The total kinetic energy of the two cars after the crash is less than the total kinetic energy before the crash. Which explains the loss of KE
A wave carries energy, not matter
Which of the waves is carrying the greater amount of energy ?
Which of the following provides an example of sound waves being reflected
A ringing bell makes noise inside a glass jar. Then the air is removed from the glass jar using a vacuum pump. When all of the air leaves the jar, the sound of the ringing bell can no longer be heard.Which of the following best explains why the stud
Mechanical waves require a medium to travel through.
The _____________ the wavelength, the more times it will pass by in one second. The _____________ the wavelength, the fewer times it will pass by in one second.
Music studios use “soundproof” recording rooms. The walls of these rooms are designed in such a way that the only sounds that reach the microphones inside the room are sounds from inside the room. The most important characteristic in designing the so
Sound waves travel the fastest through which state of matter?
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