This is a situation in which the net force of a system is zero.
What is Equilibrium?
This is the ratio of pressure at the bottom of a water filled cylinder and cone with the same height and area of the base.
What is equal?
This is the type of motion that describes back and forth movement with force proportional but opposite of change in length. Examples of this are springs and pendulums.
What is simple harmonic motion?
These are the units for measuring how loud a sound is, in a logarithmic scale.
What are decibels?
Nervousness causes the heartbeat to rise, and makes blood flow faster through your veins. If you were a doctor, you would apply this correction to an extremely nervous patient's blood pressure.
What is a correction factor of greater than 1?
This is an increase in force gained by applying a torque to a lever arm.
What is Mechanical Advantage?
This is the property of objects that determines whether they float or sink.
What is density?
This aspect of simple harmonic motion remains constant while a pendulum's amplitude is reduced due to friction.
What is the period?
In order to decrease the pitch of an organ pipe, the length of the pipe must be changed in this way.
What is elongation?
The torque due to gravity acts as if all of the mass of an object is concentrated on this point in an object.
What is the center of mass?
This is what allows planes to fly. It's created by a plane's wing being curved on the top and flat on the bottom.
What is a difference of pressures?
This is the difference between final and current position, regardless of the path taken.
What is displacement?
This is how loud a sound can be before it hurts a human.
What is 110 decibels? / What is 1 watt per square meter?
This is what happens when an object's center of mass can be immediately lowered by rotating it.
What is falling over?
This is the safest way to get across a frozen if you have no tools. This is also the safest way to get out of quicksand.
What is laying down flat and crawling?
This is the force that drives simple harmonic motion. It is always directly proportional but opposite to the change in length of a spring.
What is the restoring force?
This is the color that objects turn when moving away from the frame of reference.
What is red?
This is the name of the constant that determines how much an object can stretch before breaking.
What is Young's Modulus?
A ship carrying a large chunk of osmium (very very dense) is partially submerged in a lake. They throw the osmium overboard (Joey does not condone dumping in lakes) and the osmium sinks. This is what happens to the water level in the lake.
What is a lowered water level?
You are trying to invent a time machine. You install a grandfather clock in an elevator. In order to make the clock tick faster, this is the direction you must make the elevator accelerate. (The clock ticks faster when the period of the pendulum is smaller.)
What is up?
DAILY DOUBLE! (Sorta) This property of helium explains why your voice has higher frequency, and sounds higher pitched, after inhaling helium. Hint: The wavelength of sound that your voicebox produces does not change. This question is worth 1000 points.
What is density? (The speed of sound is high in helium that it is in air. The frequency is proportional to the velocity when wavelength is held constant. If you inhaled argon, it would kill you. It would also make you sound like a bullfrog.)