FORCES & MOTION
A push or pull that can change motion.
Force
Energy of motion.
Kinetic Energy
Resources we use from Earth.
What are natural resources?
A dangerous Earth event.
What is a natural hazard?
When two forces are equal in size and opposite in direction.
Balanced forces
Stored energy based on position.
Potential Energy
Resources that can be replaced quickly.
What are renewable resources?
A sudden shaking of Earth’s surface.
What is an earthquake?
A force that slows objects when they rub together.
Friction
Energy transformation means this happens.
Energy changes from one form to another
Resources that cannot be replaced quickly.
What are nonrenewable resources?
A large storm with strong winds and heavy rain.
What is a hurricane?
A force that can act without touching.
Magnetic Force
A roller coaster at the top of a hill has mostly this energy.
Potential Energy
Name 2 renewable resources.
Sunlight, wind, water, trees
A long period with little or no rain.
What is a drought?
If forces are unbalanced, what can happen? (name 2 changes)
Start, stop, speed up, slow down, change direction
A moving car has more energy when it does this.
Moves faster (increases speed)
Why should people conserve resources?
To avoid running out and protect Earth
Name 2 ways people can reduce damage from disasters.
Early warning systems, evacuation plans, strong buildings