Signals
These signals store information using numbers instead of continuous waves.
What are digital signals?
This force pulls objects with mass toward each other.
What is gravity?
The highest point of a transverse wave is called this.
What is a crest?
Two skateboarders push off each other and move in opposite directions. This law explains why both move.
What is Newton’s Third Law?
These waves allow spacecraft to send information through space back to Earth.
What are electromagnetic waves?
This unit is used to measure the strength of a force.
What is a Newton?
The lowest point of a transverse wave is called this.
What is a trough?
When balanced forces act on an object, this happens to the object’s motion.
What is no change in motion?
Wireless devices avoid receiving the wrong message because each device has this.
What is a unique code or address?
As the distance between two objects increases, gravitational force does this.
What is decreases?
When the amplitude of a wave increases, this happens to the energy of the wave.
What is the energy increases?
When forces acting on an object are not equal, this occurs.
What is acceleration?
One advantage of digital signals is that small disruptions during transmission can be easily this.
What is corrected?
If the mass of one object increases while distance stays the same, gravitational force does this.
What is increases?
Two waves travel at the same speed, but one has a higher frequency. This happens to its wavelength.
What is it becomes shorter?
A swimmer pushes water backward to move forward. This demonstrates this principle of motion.
What is Newton’s Third Law?
Analog signals differ from digital signals because they change in this way.
What is continuously?
This invisible region around an object allows it to exert force without touching another object.
What is a force field?
Two waves have the same amplitude but different frequencies. The wave with the higher frequency has this type of wavelength.
What is a shorter wavelength?
When two objects interact, each object exerts this type of force on the other.
What are equal and opposite forces?