4.1 Energy in Systems

Last updated almost 2 years ago
16 questions
1

Define energy.

1

Define kinetic energy.

1

Define mechanical energy.

3

How do living things and machines use chemical energy?

3

How do living systems cause changes in energy?

3

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.

  • 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?

1

What forms of energy does a lawnmower change the chemical energy from gasoline into?

1

A human changes chemical energy into heat and ___________________.

1

What happens to energy within a system?

1

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?

1

The chemical energy from plants is changed to _______________________ in animals.

1

What kind of energy does an organism receive from eating food?

1

Which system changes light energy to chemical energy?