Formation of the Solar System
Which planet in the solar system has the greatest gravitational pull?
Jupiter
Is a falling pencil an example of potential or kinetic energy?
Kinetic
What is the definition of kinetic energy?
The energy of motion
What is the type of thermal energy that is carried by light?
Radiation
Which planet has a similar tilt and rotation to Earth?
Mars
What is the scientific name for when the moon is growing smaller?
Waning
When a car is not moving, what kind of potential energy is stored in the system?
Chemical in the fuel
What are 3 examples of Kinetic energy?
electrical
radiant
thermal
sound
mechanical
What is the type of thermal energy that transfers heat by direct touch?
Conduction
DAILY DOUBLE:
*Win or Lose 400 points*
The movement of bubbles in a lava lamp is an example of ____________
Convection
What is the layer that protects the Earth from the sun's rays?
Ozone Layer
What is the difference between kinetic and potential energy?
Kinetic is energy from some kind of movement and potential is stored energy.
What is the definition of sound energy?
When air or water circulate with hot rising and cold sinking.
Elastic potential -> kinetic mechanical -> gravitational potential -> kinetic mechanical -> sound
When the moon is on the right side of the Earth which sides of the Earth experience high tide?
East and West
Name 3 forms of potential energy.
Gravitational
Elastic
Chemical
What is the difference between potential and kinetic energy?
Kinetic has to do with motion, potential is stored energy.
True or False: a hurricane is a type of convection.
False, hurricanes are results of air convection cycles.
What are the 2 main differences between the 4 inner planets and the 4 outer planets in our Solar System.
Inner - Terrestrial, smaller
Outer - Gas giants, larger
Name one of the astronomers who discovered dark matter.
Fritz Zwicky and Vera Ruben
What type of potential energy is represented in a catapult?
Elastic
What type of energy happens when you heat up a substance like water?
Thermal Energy
You are in very hot weather outside, so you walk into an air conditioned room in your house. Instantly, you are cooled down. Is this an example of conduction or convection?
Both. You are being cooled by the cold air touching your skin, but the air travels through the room in circles.
How do we know that dark matter exists? Specifically, what did scientists observe?
Scientists observe that everything in the galaxy is revolving around the center at the same rate, meaning the gravitational pull is equal across all parts. This means there is some extra "glue" holding the galaxy together.