Forces & Motion
What is a force?
A push or pull
What is kinetic energy?
Energy of motion
Do waves transfer matter or energy?
Energy
What are all substances made of?
Atoms
What causes seasons on Earth?
Earth’s tilt
What happens when forces are balanced?
No change in motion
What is potential energy?
Stored energy
What is wavelength?
Distance between wave crests
What is a chemical change?
A change that forms a new substance
What type of boundary is when plates move apart?
Divergent
What force pulls objects toward Earth?
Gravity
What happens to kinetic energy when speed increases?
It increases greatly
What happens when light bends?
Refraction
Name one sign of a chemical reaction
Color change / gas / heat / light
What is the difference between weather and climate?
Weather = short-term, Climate = long-term
Which law explains action-reaction pairs
Newton’s 3rd Law
What law states energy cannot be created or destroyed?
Law of Conservation of Energy
Which color has the shortest wavelength?
Violet
What law says matter is not created or destroyed?
Conservation of Matter
What force keeps planets in orbit?
Gravity
What is the formula for force?
F = ma
What type of energy transformation happens in a flashlight?
Chemical → light energy
What happens when light bounces off a surface?
Reflection
What happens to atoms during a chemical reaction?
They rearrange
What type of boundary is when plates slide past each other?
Transform boundary