Energy and Collisions
What happens to energy when an object moves faster?
It increases
What is the height of a wave called?
Amplitude
What breaks rocks into smaller pieces?
Weathering
Where do producers get energy from?
The sun
Is light a wave or matter?
Wave
Which has more energy: a slow-moving car or a fast-moving car?
Fast-moving car
What is the distance between two wave peaks called?
Wavelength
What moves sediment from one place to another?
Erosion
What role do decomposers play?
Break down dead organisms
Which travels faster: sound or light?
Light
What happens during a collision when speed increases?
Bigger change in shape/more damage
What happens when two waves meet and cancel each other out?
They interfere and cancel (destructive interference)
What forms when sediment is dropped in a new location?
Deposition
What happens if one organism is removed from a food web?
It affects the whole system
If you double the speed of an object, what happens to its energy?
It increases
Why do seatbelts help during a crash?
They reduce injury by slowing you down safely (reduce energy impact)
Why do objects look different colors?
Light reflects certain colors to our eyes
Give one example of mechanical weathering
DAILY DOUBLE
Frost-wedging, tree-root wedging, abrasion, wind, water
Why are producers important in a food web?
They start the energy flow
Why do we see a straw “bend” in water?
Refraction
A student drops two objects: one from 1 ft and one from 5 ft. Which causes more damage and why?
The 5 ft drop—more speed = more energy = bigger impact
How do phones send messages over long distances?
Using waves/signals that are received and decoded
Why do mountains change over time?
Weathering + erosion reshape land over long periods
What could happen if a new predator is introduced?
It could disrupt balance (population changes)
A wave gets taller but not longer—what changed?
Amplitude Increased