Have an account?
What is this graph showing?
Acceleration (speeding up)
Negative Acceleration (slowing down)
What is happening at D?
Fast steady speed; moving away from the starting position
Slower steady speed; moving away from the starting position
What property of the wave is represented by the letter "A"?
The highest point on a wave is:
You can't hear sounds in outer space because there is no
All waves carry ________ as they travel from one place to another.
When light hits the shirt in the picture, which color will bounce off?
Indigo (deep blue)
This is a signal where the data is represented by binary digits.
Two small hollow metal spheres hung on insulating threads attract one another as shown. It is known that a positively charged rod will attract sphere A. Which statements can be correctly concluded about the charge on the spheres?
A has a positive charge
B has a negative charge
A and B have opposite charges
A is neutral
The magnitude of the electric force between two objects depends upon what factors? CHOOSE ALL THAT APPLY!
the distance between their centers
Magnetic fields do not exist because we cannot see them.
Depends on the day.
Depends on the time.
The larger the charge or magnetic strength and the smaller the distance...
the greater the force
the weaker the force
it will neutralize the force
will lead you to the Dagobah system
Electric and magnetic forces requires physical contact.
All of the answers
None of the answers
Particles with opposite charges ____________ and particles with same (or like) charges ____________.
What would happen with the magnets in the picture above?
They would repel
They would attract
They would repel and then attract
Can energy be destroyed?