Show:
Motion
Forces
Weather
Solar System
All of the Above
100
Without this, we cannot prove that an object is in motion
What is a reference point?
100
Forces that are equal and opposite
What are balanced forces?
100
Relative humidity if the air is saturated...
What is 100% ?
100
The region of the solar system that Pluto spends most of its orbit in...
What is the Kuiper Belt?
100
Person responsible for the Universal Law of Gravitation
Who is Newton?
200
Objects accelerate if they ____, ____, or ____,
What is speed up, slow down or change direction?
200
The force that opposes all objects when they move...
What is friction?
200
This type of front occurs when a cold front overcomes a warm front...
What is an occluded front?
200
The distance light travels in one Earth year...
What is a light year?
200
This weather system usually means sunny, clear skies...
What is a high pressure system?
300
An example is when an object travels a distance = 15 m and displacement = 0
What is the object begins and ends at the same point?
300
The weakest of four main forces in the universe...
What is gravity?
300
This is issued if a weather conditions might result in a storm...
What is storm watch?
300
Most information we have about the planets came from this type of technology
What is a space probe?
300
This causes the difference between whether it is raining or snowing.
What is air temperature?
400
This causes the hands of a clock that are moving at constant speed to accelerate...
What is change in direction?
400
1 kg*m/s2
What is a Newton? force measurement
400
This group of symbols is used on weather maps to show current conditions for a specific location.
What is a station model?
400
The scientist that discovered the eccentricity of planet orbits...
Who is Kepler?
400
An instrument used to measure humidity.
What is a hygrometer or psychrometer?
500
A hypothetical machine that can work indefinitely without an energy source.
What is perpetual motion machine?
500
Condition needed so that an object can move without air resistance.
What is a vacuum?
500
Direction air moves into high pressure systems...
What is clockwise?
500
The number of Mars rovers that are currently on the surface of Mars.
What is 4; Curiosity and Opportunity are still active; Sojourner and Spirit are inactive.
500
This unit expresses an object's momentum...
What is a kg*m/s ?