“Orbit Mania!”
Gravity depends on mass and this.
Distance
Newton’s 1st Law is also called this.
The Law of Inertia
Heat transfer through direct contact is called this.
Conduction
Temperature measures the average energy of ______.
Particles
These large bodies orbit stars and must clear their orbit.
Planets
A horizontal (flat) line on a distance–time graph shows this.
No motion
Speed is a measure of how fast something moves. Velocity adds this extra piece of information.
Direction
Planets orbit the Sun because the Sun has a large amount of this.
Mass
An object in motion stays in motion unless acted on by this.
An unbalanced force
Boiling water circulates due to this type of heat transfer.
Convection
Heat flows until both objects reach this state.
Thermal equilibrium / same temperature
This region contains dwarf planets like Pluto.
Kuiper Belt
A steep line on a distance–time graph means the object is doing this.
Moving fast
Calculate the speed: 40 m in 5 second
8 m/s
If distance between two objects increases, gravity does this.
Weakens
A soccer ball stops rolling because of this force.
Friction
The Sun warms Earth by this method.
Radiation
Particles in a hot substance move this way compared to cold particles.
Faster
A rocky object that orbits the Sun between Mars & Jupiter.
Asteroid
A curved line on a graph often shows this kind of speed.
Changing speed (acceleration)
A car driving 30 m/s north is describing this quantity.
Velocity
The curved path planets follow around the Sun.
Orbit
Balanced forces cause this type of motion.
No change in motion
A metal spoon heating up in soup is an example of this.
Conduction
When thermal equilibrium is reached, heat transfer does this.
Stop
A ball of ice and dust that forms a glowing tail near the Sun.
Comet
If the line slopes downward, it means this.
Returning to start
A change in direction changes this, even if speed stays the same.
Velocity
The measure that describes how stretched or circular an orbit is.
Eccentricity
Unbalanced forces cause an object to do this.
Speed up, slow down, or change direction
Heat always moves from ______ to ______.
Hot → cold
A cold spoon placed in hot coffee will do this over time.
Warm up
These are natural objects that orbit planets.
Moons
The slope of a distance–time graph represents this.
Speed
The formula for speed is distance divided by this.
Time