FORCE
ECOSYSTEMS
ENERGY
PLANT REPRODUCTION
ELECTRIC CHARGE
100

What is a force?

A push or pull on an object

100

Different types of ecosystems __________ and _______ on each other.

Interact, Depend

100

Energy can be __________ from one form to another.

Converted
100

What part of the plant is responsible for reproduction?

The flower

100

Opposite charges ________

attract

200

Who discovered gravity?

Sir Isaac Newton

200

What is Biomass?

The measurement of life in an ecosystem.

200

Define Potential energy.

Energy when it is stored.

200

The ________ is the male reproductive part of the plant.

Stamen

200

Similar charges _______

repel

300

What is the formula for force?

Force = Mass x Acceleration

300

What produces energy for a producer?

The sun
300

Define Kinetic energy.

Energy when it is moving.

300

What is the female reproductive part?

Carpel

300

Positive charges are called _________.

Protons

400

Describe Newton's first law.

An object at rest will remain at rest unless acted upon by another force.

400

A _______ is a series of food chains.

Food web

400

Kinetic energy will _______ be as big as potential energy.

NEVER

400

What two parts make up the stamen?

Anther and Filament

400

Negative charges are called ______

Electrons

500

What rate does gravity increase an object's velocity?

9.8 m/s/s

500

Consumers use ______% of energy from what they eat to build their mass.

10

500

We measure food chemical energy in ________.

Calories.

500

What needs to fuse together in order to form a zygote?

The male and female gametes

500

________ allow free electrons to move freely throughout them.

Conductors

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