Geological History & Plates
What supercontinent existed about 250 million years ago?
Pangaea
Where does molten rock flow before it erupts?
Vent
What force pulls objects toward Earth?
Gravity
What type of energy an object has due to its motion?
Kinetic energy
What do we call the continuous flow of electric charge?
Electric current
What type of plate boundary causes earthquakes along faults like the San Andreas?
Transform
What fast-moving, hot mixture of gas and ash flows down volcanoes?
Pyroclastic flow
Which of Newton’s laws explains why objects stay at rest unless acted on by a force?
What simple machine is a ramp an example of?
Inclined plane
What part of a circuit provides energy to move charges?
What process explains why continents slowly move over Earth’s surface (continental drift)?
Plate tectonics
Why is volcanic soil often good for farming?
It's rich in minerals
If you push a heavier object with the same force as a lighter one, which object accelerates more?
The lighter one
What energy transformation happens in a toaster?
Electrical -> thermal
What happens to a light bulb if a circuit is open?
It turns off
Why are volcanoes common along plate boundaries?
Plates allow magma to reach the surface
Why are high-viscosity volcanoes often more dangerous than low-viscosity ones?
They trap gas, causing explosive eruptions
Which law explains why a rocket moves forward when gas is pushed backward?
Newton’s Third Law
How do simple machines make work easier?
They trade force for distance
How are electricity and magnetism connected?
Moving charges create magnetic fields
Who is calling???
Why do people still live near volcanoes despite the risks?
Fertile soil, resources, culture, land availability
Which equation links force, mass, and acceleration?
F = m x a
True or false: energy is never destroyed, but some systems may lose it.
True
Wild card: what are the independent and dependent variables in an experiment?
IV = what we control; DV = what we measure