Transcript Check Point * Energy Unit Test

Check Point – Energy Quiz
Dr. Browne
1.
2.
3.
4.
The ability to make things happen or do
work is known as ______________
There are two main types of energy:
energy that is stored, ____________
and energy of motion is ___________.
Energy is conserved which means
energy is not __________ or
_____________ it is only _________.
Question # 3 explained the Law of
_____________________________.
5. Name that Energy:
a. Energy built up due to height is …
b. The energy of moving parts is…
c. The energy of moving particles is …
d. The energy stored in bonds is …
e. The energy in the nucleus of atoms
is known as …
f. Energy that can travel through empty
space is …
g. Energy of moving electrical charges
that flows through wires
6.
7.
8.
9.
Kinetic Energy depends on two things
___________ and _____________.
The formula E = mc2 means that
____________________________.
The formula in question #7 was
developed by _________________.
Describe the energy transfer as you
travel down the first hill of a roller
coaster and up the second.
Work is defined as the _________
needed to _________ an object.
11. The unit of work is a ____________.
12. The rate at which work is done is
called ___________.
13. The unit used to describe #12 is
____________.
14. The formula and units for Work and the
rate of doing work are:
____________________________
15. Solve: How much power is needed to
move a 65N student 10m in 30s?
10.
16.
17.
18.
19.
20.
The source of all energy in an ecosystem is the
__________________. The source of all food is
________________.
True or False - All consumers directly or indirectly
eat plants.
An energy role explains how an organism
_________________________.
Explain the difference between producers,
consumers, and decomposers.
Name that consumer:
a. Only eats Meat: ___________
b. Only eats Producers: _____________
c. Eats both plants and animals: _____________
d. Eat dead materials :
______________________
List the 2 important jobs of
decomposers: ______________ and
______________.
22. A food chain shows how
_____________ is passed through an
ecosystem. A food web shows
_________________________.
23. As energy moves through an ecosystem
it follows ___________ direction.
21.
24. Look at the food chain below, name the energy roles
of each of the biotic organisms (1-5).
25. Create an energy pyramid from the information below,
label all parts of the energy pyramid!
1.
2.
3.
4.
5.
26. In what order is food and energy passed
through an ecosystem?
27. A food chain must always begin with a
______________________ because these
organisms ____________.
28. Usually _________________ are left out
of food chains.
29. Which is more accurate and realistic
description of food and energy flow in an
ecosystem – a food chain or a food web?
30. Look at the food chain below … which
organism is a primary consumer?
grass  caterpillar  bird  snake
ANSWER KEY
1.
2.
3.
4.
The ability to make things happen or do
work is known as ENERGY.
There are two main types of energy:
energy that is stored, POTENTIAL
ENERGY and energy of motion is
KINETIC ENERGY.
Energy is conserved which means
energy is not CREATED or
DESTROYED it is only TRANSFERRED.
Question # 3 explain the Law of
CONSERVATION OF ENERGY.
5. Name that Energy:
a. GRAVITATIONAL POTENTIAL
ENERGY
b. MECHANICAL ENERGY
c. THERMAL (HEAT) ENERGY
d. CHEMICAL
e. NUCLEAR
f. ELECTROMAGNETIC
g. ELECTRICAL
6.
7.
8.
9.
Kinetic Energy depends on two things
MASS and VELOCITY.
The formula E = mc2 means that
MATTER CAN BE CHANGED INTO
ENERGY AND VISA-VERSA.
The formula in question #7 was
developed by ALBERT EINSTEIN.
The most GPE is at the top of the first hill
and the most KE is at the bottom of the
first hill. As the car travels down the first
hill PE  KE and as the car travels up the
second hill KE  PE.
Work is defined as the FORCE needed
to MOVE an object.
11. The unit of work is a JOULE (J).
12. The rate at which work is done is
called POWER.
13. The unit of used to describe #12 is
WATT (W).
14. The formula and units for Work and the
rate of doing work are: W= Fd (Joule)
and P = W/t (Watts)
15. Power = 65 x 10 / 30 = 21.7 W
10.
The source of all energy in an ecosystem is the THE SUN.
The source of all food is PRODUCERS.
17. True or False - All consumers directly or indirectly eat
plants.
18. An energy role explains how an organisms GETS ITS
ENERGY (FOOD) AND PASSES ON ENERGY.
19. Explain the difference between
producers, MAKE OWN FOOD, PHOTOSYTHESIS
consumers, EAT PRODUCERS DIRECTLY OR
INDIRECTLY
decomposers, BREAK DOWN WASTE AND RETURN
NUTRIENTS TO ECOSYSTEM
20. Name that consumer:
a. Only eats Meat: CARNIVORE
b. Only eats Producers: HERBIVORE
c. Eats both plants and animals: OMNIVORE
d. Eat dead materials : SCAVENGER
16.
List the 2 important jobs of
decomposers: BREAK DOWN WASTES
and RETURN NUTRIENTS TO THE
SOIL.
22. A food chain shows how ENERGY is
passed through an ecosystem. A food
web shows OVERLAPPING FOOD
CHAINS.
23. As energy moves through an ecosystem
it follows ONE direction.
21.
24. Look at the food chain below, name the energy roles
of each of the biotic organisms (1-5).
25. Create an energy pyramid from the information below,
label all parts of the energy pyramid!
1. producer
2.
herbivore
3.
carnivore
4. carnivore
5. decomposer
Least Energy
Tertiary
Consumer
CarnivoreHawk
Secondary Consumer
CarnivoreSnake
Primary Consumer
Herbivore - Mouse
Most Energy
Producers - Grass
26. In what order is food and energy passed
through an ecosystem? SUN  PRODUCER 
CONSUMER  DECOMPOSER
27. A food chain must always begin with a
PRODUCER because these organisms HAVE THE
MOST ENERGY AND MAKE THEIR OWN FOOD.
28. Usually DECOMPOSERS are left out of food
chains.
29. Which is more accurate and realistic
description of food and energy flow in an
ecosystem – a food chain or a food web?
30. Look at the food chain below … which
organism is a primary consumer?
grass  caterpillar  bird  snake