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7th Grade Third Quarter Final

Total questions: 70

Worksheet time: 1hrs 23mins

Name
Class
Date
1.

A PATH along which electricity can flow is a ___________________?

a)

light bulb

b)

switch

c)

insulator

d)

circuit

2.

When a circuit is open, the light bulb is _________?

a)

On

b)

Off

3.

What is a material that allows energy to pass through easily?

a)

parallel circuit

b)

rubber band

c)

conductor

d)

electron

4.
this circuit is .....?
a)
open
b)
parallel
c)
closed
d)
The cutest little circuit evah!
5.

What is a material that resists, or does NOT allow, energy to flow through?

a)

circuit

b)

insulator

c)

series

d)

conductor

6.
What would happen if the switch was opened?
a)
nothing, the light bulbs would still work because there is a complete path
b)
The light bulbs would not work because the path was broken
c)
the battery would loose energy
d)
the wires would be cooled from air
7.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
8.
This is an example of a _______ circuit
a)
open
b)
series
c)
parallel
d)
square
9.

When the switch is closed the light-

a)

turns on

b)

stays off

c)

burns out

10.

In a series circuit, if one bulb goes out-

a)

they all go out

b)

the rest stay lit

c)

half stay lit and half go out

11.

A switch is necessary to make a circuit complete

a)

True

b)

False

12.

In a parallel circuit, if one bulb goes out-

a)

they all go out

b)

the rest stay lit

c)

half stay lit and half go out

13.

Which circuit shown will produce light when the switch is closed?

a)

b)

c)

d)

14.

What is wrong with this circuit?

a)

There is no light bulb

b)

The wire is cut

c)

There is no battery

d)

The wire is not connected to the battery

15.

The circuits below are an example of ...

a)

Series circuits

b)

Simple circuits

c)

Parallel circuits

d)

Insulated circuits

16.

In a computer, electric energy is transformed into all of the following except _______ energy.

a)

kinetic (motion) energy

b)

thermal energy

c)

sound energy

d)

Light energy

17.
What is an electric current? 
a)
the flow of electricity 
b)
electricity moving in only one direction
c)
a switch that gives power
18.

Electrical energy can be changed to _____ energy in stoves, toasters, and ovens.

a)

sound

b)

light

c)

heat

d)

motion

19.
Why are metals useful for making electrical wire?
a)
Metals do not bend.
b)
Metals hold much heat.
c)
Metals are insulators.
d)
Metals are conductors.
20.
Which is NOT an insulator.
a)
Wool
b)
Plastic
c)
Copper
d)
Glass
21.
Something electricity can't move through is called a(n) ______.
a)
conductor
b)
wire
c)
shoe
d)
insulator
22.
What is a example of a conductor?
a)
wood 
b)
metal
c)
rubber
d)
rock
23.
What is a example of a insulator?
a)
metal 
b)
rubber
c)
water
24.
Rubber is a insulator.
a)
true
b)
false
25.
What are Conductors?
a)
A conductor is a material that allows electric charge to move through it as an electric current. Usually the charge is carried by electrons, and the conductor is a metal.
b)
an insulator
c)
an conductor 
d)
A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators. Compare conductor.
26.
What are insulators?  
a)
A conductor is a material that allows electric charge to move through it as an electric current. Usually the charge is carried by electrons, and the conductor is a metal.
b)
An object that is really, really, really, and I mean really truely, awesome.
c)
A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators. Compare conductor.
27.
Which one is an insulator? 
a)
Silver 
b)
Copper 
c)
Mechanical pencil
d)
plastic 
28.
A jacket is a good example of an . . .
a)
Insulator
b)
Investigator
c)
Conductor
d)
Interrogator
29.

The ability to cause change or do work

a)

Energy

b)

Thermal

c)

Consductor

d)

Insulator

30.

What is potential energy?

a)

The energy an object has due to its position or condition.

b)

The energy an object has due to its chemical composition.

c)

The energy an object has due to its atomic structure.

31.

What is kinetic energy?

a)

The energy an object has due to its motion.

b)

The energy an object has due its chemical composition.

c)

The energy an object has due to its atomic structure.

32.

When does an object have NO kinetic energy?

a)

When it's at rest.

b)

When it's moving very slowly.

c)

When it has no electrical charge.

33.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
34.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
35.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
36.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill 
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall 
d)
d. a piece of coal before it's burned 
37.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
38.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
39.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
40.

What kind of energy does the picture show?

a)

Potential Energy

b)

Mechanical Energy

c)

Kinetic Energy

d)

Light Energy

41.
Which energy transformation occurs in a toaster?
a)
chemical to electric
b)
electric to thermal
c)
kinetic to chemical
d)
thermal to potential
42.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
43.
A hairdryer converts -- 
a)
electrical energy into chemical
b)
electrical energy into thermal
c)
chemical energy into mechanical
d)
thermal energy into mechanical
44.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
45.
Name the energy transformations taking place when I plug in my radio and it begins playing.
a)
Thermal to mechanical to electrical
b)
Radiant to chemical
c)
Electrical to sound
46.

The electrical energy of the stove is transferred to _____ energy.

a)

Solar

b)

Thermal

c)

Potential

d)

Electrical

47.

What energy transformation takes place as a rock rolls down a hill?

a)

None

b)

Gravitational Potential Energy to Kinetic Energy

c)

Thermal Energy to Kinetic Energy

d)

Rock Energy to Mechanical Energy

48.

Which of the following energy transformations takes place as someone skids to a stop across the ground?

a)

None of these

b)

Thermal Energy to Sound Energy

c)

Sound Energy to Kinetic Energy

d)

Kinetic Energy to Thermal Energy

49.

Which of the following energy transformations takes place as a battery-operated toy lights up and starts moving?

a)

Elastic Potential Energy to Kinetic Energy

b)

Electrical Energy to Chemical Energy

c)

Chemical Energy to Kinetic Energy

d)

None of these

50.

Which of the following energy transformations takes place when you plug in a fan and the blades start turning

a)

Electrical Energy to Kinetic Energy

b)

Rotational Energy to Wind Energy

c)

Thermal Energy to Cold Energy

d)

None of these

51.

Which of the following energy transformations takes place as someone bounces up from a trampoline

a)

Elastic Potential Energy to Kinetic Energy

b)

Thermal Energy to Kinetic Energy

c)

Gravitational Potential Energy to Kinetic Energy

d)

None of these

52.

The Law of Conservation of Energy states that energy is never _____________ or ____________, only transformed.

a)

created, destroyed

b)

created, subtracted

c)

added, subtracted

d)

destroyed, subtracted

53.

What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?

a)

mechanical energy to chemical energy

b)

thermal energy to mechanical energy

c)

chemical energy to mechanical energy

d)

mechanical energy to thermal energy

54.

What kind of energy is represented in the picture?

a)

Thermal

b)

Chemical

c)

Sound

d)

Kinetic

55.

What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?

a)

thermal to electrical

b)

mechanical to thermal

c)

electrical to thermal

d)

electrical to sound

56.

What type of energy is electrons flowing through a wire?

a)

Electrical energy

b)

Chemical energy

c)

Kinetic energy

d)

Mechanical energy

57.

What type of energy is stored in batteries or food?

a)

Potential energy

b)

Thermal energy

c)

Chemical energy

d)

Mechanical energy

58.
What is energy changing from one form to another?
a)
energy conservation
b)
energy transformation
c)
energy creation
d)
mechanical energy
59.

What is the energy transformation that occurs in an electric pencil sharpener?

a)

mechanical energy to electrical energy

b)

electrical energy to mechanical energy

c)

radiant energy to sound energy

d)

chemical energy to mechanical energy

60.
What two forms of energy are given off by a burning candle?
a)
heat and light
b)
mechanical and electrical
c)
nuclear and light
d)
potential and heat
61.

The types of rocks are?

a)

Sedimentary

b)

Sand

c)

Igneous

d)

Metamorphic

62.

The melted form of rocks underground it called?

a)

Lava

b)

Igneous rocks

c)

Magma

d)

Metamorphic rocks

63.

The type of rock formed when old rocks are weathered and the pieces that 

 break off are cemented together into new rock.

a)

igneous

b)

metamorphic

c)

sedimentary

64.

The type of rock formed when heat and pressure change an old rock into a new

  type of rock.

a)

igneous

b)

metamorphic

c)

sedimentary

65.

All rocks on Earth's surface can weather and become sediment

a)

True

b)

False

66.

Metamorphic rocks are rocks that have been changed from heat and pressure.

a)

True

b)

False

67.

When molten (melted) rock cools and becomes a solid, a(n) _____ rock forms.

a)

Igneous         

b)

Sedimentary

c)

Metamorphic

d)

Mineral

68.

Sedimentary rocks are made up of

a)

large rocks.  

b)

hard rocks.

c)

mostly igneous rocks

d)

small particles of sediment.

69.

According to the diagram, how does a sedimentary rock become a metamorphic rock?

a)

Weathering and Erosion

b)

Heat and Pressure

c)

Compaction and Cementation

d)

Melting

70.

What is letter G?

a)

Heat and pressure

b)

Cooling

c)

Deposition, Compaction, Cementation

d)

Weathering and erosion

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