4.1 Energy in Systems
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Last updated almost 2 years ago
16 questions
1
Define energy.
Define energy.
1
Define kinetic energy.
Define kinetic energy.
1
Define mechanical energy.
Define mechanical energy.
3
How do living things and machines use chemical energy?
How do living things and machines use chemical energy?
3
How do living systems cause changes in energy?
How do living systems cause changes in energy?
3
What happens when energy moves to different organisms in an ecosystem?
What happens when energy moves to different organisms in an ecosystem?
9
Classify each item as either a model, matter, or energy.
Hints: There are 3 in each category. They are only used once in each category.
Classify each item as either a model, matter, or energy.
Hints: There are 3 in each category. They are only used once in each category.
- electrical
- a food web
- a bicycle
- a rock
- sound
- a food chain
- a tree
- motion
- the water cycle
- Model
- Matter
- Energy
1
What will most likely happen if an animal consumes more food than it needs for the work it will do?
What will most likely happen if an animal consumes more food than it needs for the work it will do?
1
What forms of energy does a lawnmower change the chemical energy from gasoline into?
What forms of energy does a lawnmower change the chemical energy from gasoline into?
1
A human changes chemical energy into heat and ___________________.
A human changes chemical energy into heat and ___________________.
1
What happens to energy within a system?
What happens to energy within a system?
1
The initial source for all energy in a food chain is
The initial source for all energy in a food chain is
1
Long distance runners often eat special snacks partway through their run. What is the most likely reason for this?
Long distance runners often eat special snacks partway through their run. What is the most likely reason for this?
1
The chemical energy from plants is changed to _______________________ in animals.
The chemical energy from plants is changed to _______________________ in animals.
1
What kind of energy does an organism receive from eating food?
What kind of energy does an organism receive from eating food?
1
Which system changes light energy to chemical energy?
Which system changes light energy to chemical energy?