(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
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advantages of digital communication?
Can be transmitted over long distances
How can you increase the strength of an electromagnetic?
Add more coils
How do we know galaxies are moving farther away form the eacrth?
Red Shift
Define gravity.
force between two objects that depends on their mass and the distance between them.
Newton's third law
Every action has an equal and opposite reaction
What determines how fast a sound wave travels?
The type of medium determines how fast sound travels
What does a horizontal line on a distance time graph mean?
not moving
Example of a action force
rocket pushes on the gas
Why does a free-falling object accelerate?
Gravity
Newton's second law
More mass requires more force to accelerate
What is required to transmit sound?
a medium
What is the law of electrostatics?
Opposite charges attract and like charges repel
newton’s first law
Objects in motion stay in motion objects at rest stay at rest unless acted upon by an external force.
What is frequency?
Number of waves that pass a given point per second
What is the force that stops or slows a moving object?
Friction
What is the energy transformation for an electric motor?
electrical energy to mechanical energy
what type of speed is a diagonal line?
constanst speed
What can change the acceleration of the object?
mass and or force
What is the energy transformation for a generator?
Mechanical energy to electrical energy
What is net force?
Total of all forces acting on an object
What happens when white light goes through a prism?
refracted and creates a rainbow.
What colors have lower energy than yellow?
orange and yellow
Define refraction
the bending of light wave as it moves from one medium to another.
when should you add the forces?
same direction
What is amplitude?
the height of the wave
Define reflection.
when a wave bounces back after hitting a surface.
When should you subtract forces?
opposite directions
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What is the charge on a balloon that is sticking to a wall?
negative charge
What type of radiation on the electromagnetic spectrum is the most dangerous?
gamma
What happens to the frequency of a wave when the Wavelength decreases?
When wavelength decreases frequency increases.
What is required to make an electromagnet besides copper wire and iron coil?
battery
define doppler effect
The apparent change in frequency of a wave
Caused by relative change in motion of the source
of the wave and the observer