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Worksheets

Summative Questions

Total questions: 109

Worksheet time: 1hrs 22mins

Name
Class
Date
1.

What is the flow of electric charge called?

a)

electricity flow

b)

electric current

c)

voltage stream

d)

charge movement

2.

Which type of electric current flows in one direction only?

a)

Alternating current (AC)

b)

Bidirectional current (BC)

c)

Variable current (VC)

d)

Direct current (DC)

3.

What are materials that allow electric current to pass through them easily called?

a)

obstructors

b)

conductors

c)

insulators

d)

resistors

4.

What are materials that do not allow electric current to pass through them easily called?

a)

Transistors

b)

Insulators

c)

Semiconductors

d)

Conductors

5.

What unit is used to measure electric current?

a)

Amperes (A)

b)

Volts (V)

c)

Watts (W)

d)

Ohms (Ω)

6.

What is the difference in electric potential between two points called?

a)

voltage

b)

current

c)

resistance

d)

power

7.

What is the unit of measurement for voltage?

a)

meters (m)

b)

volts (V)

c)

grams (g)

d)

liters (L)

8.

What property of a material determines how easily it allows electric current to pass through it?

a)

conductivity

b)

density

c)

hardness

d)

viscosity

9.

What is the unit of measurement for resistance?

a)

watt

b)

ohm

c)

ampere

d)

volt

10.

What is the relationship between voltage, current, and resistance described by?

a)

Darwin's Evolutionary Theory

b)

Einstein's Theory of Relativity

c)

Newton's Law

d)

Ohm's Law

11.
This circuit is .....?
a)
open
b)
parallel
c)
closed
d)
shows the flow of electricity
12.
When all parts of the circuit are connected, it is a ______ circuit. 
a)
open
b)
closed
13.
When all parts of the circuit are connected, it is a ______ circuit. 
a)
open
b)
closed
14.
Which of these best completes the circuit?
a)
rubber band
b)
metal nail
c)
leather shoelace
d)
wooden toothpick
15.
Look at the picture.  Why won't the light bulb light up?
a)
The wires from the light bulb are not connected to the battery
b)
The switch is not closed to form a complete circuit 
c)
The wires from the light bulb are not connected to the switch 
d)
The wires from the battery are not connected to the switch 
16.
a)
Wire
b)
Light
c)
Battery
d)
Switch
17.
What object would best complete this circuit?
a)
A battery
b)
a peice of yarn
c)
an insulator
d)
a conductor
18.
The plastic covering is there to:
a)
Provide a conductor for electrical energy to flow.
b)
Provide an insulator so that electrical energy will not pass outside of the wires.
c)
Provide a conductor so that electrical energy can NOT flow.
d)
Provide an insulator so that electrical energy can flow.
19.

What is a conductor?

a)

Material that does NOT transfer energy.

b)

Materials that are connected to circuits.

c)

Materials that transfer energy.

d)

Materials that

20.
A battery is a source of electric energy.
a)
True
b)
False
21.
Which of the following materials is used to cover electrical wires for safety because it is an insulator of electric energy? 
a)
Copper 
b)
Aluminum
c)
Iron
d)
Rubber
22.
A closed path through which an electrical current flows is called a ____________________.
a)
Path
b)
Diagram
c)
Circuit
d)
Battery
23.
Something electricity can't move through is called a(n) ______.
a)
conductor
b)
wire
c)
shoe
d)
insulator
24.

Which wire has more resistance (long or short)?

a)
b)
25.

resistance is

a)

a force that attracts metal

b)

a force that allows electricity to pass easily

c)

a force that opposes the flow of electricity

26.

Which circuit component provides voltage?

a)
b)
c)
d)
27.

True or False: All materials have the same amount of resistance

a)

True

b)

False

28.

True or False: Resistance and pressure are the same thing

a)

True

b)

False

29.

Changing the length and thickness of wire in a circuit will change ____________

a)

the strength of the current

b)

the voltage

c)

the pressure

30.

A picture of a circuit using symbols is

a)

circuit diagram

b)

electric switch

c)

Multimeter

31.

The unit electric current is measured in is

a)

Volt

b)

Ampere

c)

Newton

32.

The unit for measuring the strength of electricity is

a)

volt

b)

ampere

c)

newton

33.

Do you think resistance good or bad?

a)

Good

b)

Bad

c)

It can be good and bad

34.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles. 
d)
the middle.
35.
Iron, Nickel and cobalt are all __________________ materials
a)
Shiny
b)
poles
c)
magnetic
d)
cold
36.

Sometimes the north and south poles of atoms in a material will line up. What is the term for the region where this occurs?

a)

a domain

b)

ferromagnetic

c)

magnetic field

d)

magnetic pole

37.

Which of the following is a ferromagnetic material?

a)

Iron

b)

Copper

c)

aluminum

d)

diamond

38.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
39.
How is a permanent magnet DIFFERENT from a temporary magnet?
a)
A permanent magnet attracts materials made of iron.
b)
A permanent magnet has poles.
c)
A permanent magnet has a magnetic field.
d)
A permanent magnet keeps its magnetism for a long time.
40.

Please draw the magnetic field with arrows in your notebook. Answer the question, why Earth is like a magnet

4 lines
41.

A device that uses a free-moving magnetic needle to show direction is a:

a)

Ruler

b)

magnet

c)

compass

d)

magnetic field

42.
Why does a compass needle point north?
a)
The compass is a bar magnet
b)
Because north is up
c)
Because it's magic
d)
It lines up with the Earth's magnetic field
43.

When particles from the Sun travel towards the Earth, the Earth抯 magnetic field pulls them towards the poles. These solar particles interact with particles in Earth抯 atmosphere and can create a beautiful light display in the sky. What is this light display commonly called?

a)

aurora

b)

geographic pole

c)

radiation belt

d)

solar flare

44.
What kind of magnet can be turned on and off? (Man-made magnet)
a)
refrigerator magnet
b)
electromagnet
c)
magnetite
d)
iron
45.
How do like poles interact with each other? (north to north)
a)
They repel each other.
b)
They attract each other.
c)
Throw a toaster into a bathtub.
d)
No relationship.
46.
Choose the best option to complete this gap:
A magnetic field is the ________ around a magnet in which the magnetic force acts.
a)
pole
b)
electron
c)
area
d)
iron
47.
An example of an insulator is:
a)
iron
b)
silver
c)
copper wire
d)
rubber
48.

The relationship between electricity and magnetism is called

a)

solenoid

b)

transformer

c)

electromagnetism

d)

electromagnet

49.

What happens if you cut a magnet in half?

a)

Nothing

b)

The magnets repel

c)

There will be two magnets

50.

The picture above is an example of what?

a)

Magnetic field

b)

Electric field

c)

Repulsion

d)

Attraction

51.
What would happen if I move a bar magnet in and out of a coil of copper wire?
a)
Electric current would disappear 
b)
The magnet would explode 
c)
Electric current will flow through the wire
d)
It would produce a gravitational field
52.
A magnet can move in a coil of wire to produce electricity in which system?
a)
Generator
b)
Motor
c)
Magnet
d)
Transformer
53.

What type of process is shown?

a)

Electromagnet

b)

Electric motor

c)

Electric generator

d)

Electromagnetic induction

54.

A _______________ is a coil that carries an electric current. 

a)

Solenoid

b)

Simple Electric Motor

c)

Electromagnet

d)

Generator

55.

What can be done to increase the number of magnetic objects that an electromagnet picks up?

a)

Make the wire longer

b)

Remove the nail from the center of the wire

c)

Increase the number of coils in the solenoid

d)

Spread the coils out across the nail

56.

A generator is a machine that transforms ____________ energy to ______________ energy.

a)

Electrical to Mechanical

b)

Mechanical to Electrical

c)

Radiant to Mechanical

d)

Mechanical to Thermal

57.

A simple motor converts ______________ energy to ____________ energy. 

a)

Magnetic to Electrical

b)

Electrical to Magnetic

c)

Electrical to Mechanical

d)

Mechanical to Electrical

58.

The strongest parts of the magnet are ...

a)

fronts

b)

backs

c)

poles

d)

middle

59.

The area around a magnet is called the .....

a)

attraction zone

b)

work area

c)

magnetic field

d)

hot zone

60.

The area around a magnet is called the .....

a)

attraction zone

b)

work area

c)

magnetic field

d)

hot zone

61.
The picture is an example of an:
a)
Electric circuit
b)
Electromagnet
c)
Electric nail
d)
Electric power cell
62.
A compass needle responds to a magnetic field, because the compass needle is a
a)
A. generator.
b)
B. motor.   
c)
C. magnet.
d)
D. transformer.
63.

Ecology is the study of:

a)

only the living things in the environment

b)

only the nonliving things in the environment

c)

how living things interact with each other and the nonliving things in the environment

d)

scientists who perform research on living things

64.

What is a species?

a)

Different animals that compete for the same resources

b)

A group of similar organisms that can reproduce with each other

c)

A group of organisms that live together

d)

A group of organisms that are physically and functionally very different from each other

65.

Which of the following is NOT a nonliving thing? (which one is living?)

a)

Sun

b)

Rocks

c)

Milk

d)

Wood

66.

What is a niche?

a)

The habitat that an organism lives in

b)

An organism’s “role” in an ecosystem

c)

A type of consumer

d)

The relationship between a producer and consumer

67.

What happens when different species try to occupy the same niche?

a)

The species compete with each other

b)

The species cooperate with each other

c)

The species coexist with each other

d)

All of the above

68.
Members of a species in a defined area
a)
Ecosystem
b)
community
c)
biodiversity
d)
population
69.
All the organisms in a particular location, including their nonliving environment
a)
ecosystem
b)
carnivore
c)
niche
d)
population
70.
Which biome, because of its climate and amount of rainfall, has the largest number of species of plants and animals?
a)
Tundra
b)
Rainforest
c)
Desert
d)
Pineforest
71.
Living parts of an ecosystem are called
a)
biotic factors
b)
abiotic factors
c)
crazy critters
d)
animals and plants
72.
Nonliving parts of an ecosystem are called
a)
abiotic factors
b)
biotic factors
c)
rocks and dirt
d)
funiture
73.
A group of organisms of the same species living in the same area are called a/an ________.
a)
community
b)
habitat
c)
population
d)
ecosystem
74.

A _, also called an autotroph, uses energy to make food.

a)

producer

b)

consumer

c)

decomposer

75.

An organism that gets energy and nutrients by breaking down the remains of other organisms is a _.

a)

producer

b)

consumer

c)

decomposer

76.

A consumer that eats only plants, such as a grasshopper or bison, is called an _.

a)

herbivore

b)

carnivore

c)

omnivore

77.

An _ eats both plants and animals.

a)

herbivore

b)

carnivore

c)

omnivore

78.

A _ is the path of energy transfer from producers to consumers.

a)

food web

b)

food chain

79.

All food chains start with _.

a)

producers

b)

consumers

c)

decomposers

80.

_ is the primary source of energy for most ecosystems.

a)

The sun

b)

The moon

c)

Who knows?

81.

A _ eats mostly dead animals. (choose 2)

a)

consumer

b)

decomposer

c)

producer

d)

scavenger

82.

A _ contains many food chains.

a)

food web

b)

community

c)

ecosystem

83.

_ is the process by which light energy from the sun is converted to food.

a)

Production

b)

Photosynthesis

84.

Plants compete for resources.

a)

true

b)

false

85.

Living things need the nonliving parts of an environment to survive.

a)

true

b)

false

86.

A _ is a group of organisms of one species that lives in the same area at the same time.

a)

community

b)

population

c)

family

87.

_ occurs when individuals join a population.

a)

Immigration

b)

Emigration

88.

_ occurs when individuals leave a population.

a)

Immigration

b)

Emigration

89.

The _ is the maximum number of individuals of one species that the environment can support.

a)

population

b)

carrying capacity

c)

load

90.

A part of the environment that keeps a population's size at a level below its full potential is called a _.

a)

carrying capacity

b)

migration

c)

limiting factor

91.

When two or more individuals or populations try to use the same limited resource, such as food, water, shelter, or sunlight, it is called _.

a)

cooperation

b)

conglomeration

c)

competition

92.

_ occurs when individuals work together.

a)

Competition

b)

Cooperation

c)

Conglomeration

93.

If the amount of resources in an environment decreases, the carrying capacity for a population will probably _.

a)

increase

b)

decrease

94.

Some birds warn other birds when predators are close. This type of interaction is called _.

a)

cooperation

b)

competition

95.

Give one example of how cooperation can help organisms survive.

a)

get less food

b)

compete for food

c)

get more food

96.

Individuals _ when they work together to obtain resources.

a)

cooperate

b)

compete

97.
A relationship between two organisms in which one organism benefits and the other is unharmed...
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
98.
A tapeworm and a cat have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
99.
What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
100.
A relationship between two organisms in which both organisms benefit. 
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
101.
When a mosquito bites you, you are the __________ and the mosquito is the  ____________.
a)
host, hostess
b)
parasite, host
c)
host, parasite
d)
prey, predator
102.

A relationship in which two species live closely together.

a)

resource

b)

mutualism

c)

succession

d)

symbiosis

103.

A relationship between two organisms in which one organism benefits and the other is unharmed and not helped.

a)

Mutualism

b)

Competition

c)

Parasitsm

d)

Commensalism

104.

The role an organism plays in it's habitat is called?

a)

habitat

b)

niche

c)

job

d)

environment

105.

An increase in predator population will result in a ___________ in the prey population.

a)

increase

b)

no change

c)

decrease

106.

1- A tick sucks blood from a dog. In this relationship, the tick is the ................. and the dog is the .................

a)

parasite, prey

b)

predator, host

c)

parasite, host

d)

host, parasite

107.

Bee and flower Example of Mutualism

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

host

108.

An organism that eats only plants

a)

Food web

b)

Herbivore

c)

Food chain

d)

a) Carnivore

109.

Remora and Shark example of

a)

Commensalism

b)

Mutualism

c)

Parasitism

d)

Prey

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