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Worksheets1st Nine Weeks Exam Review
Total questions: 40
Worksheet time: 1hrs 12mins
Name
Class
Date
1.
Force must be applied or an object must move in response to force
a)
insulators
b)
energy transforming
c)
evidence of work being done
d)
none of these
2.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
3.
What is the definition of CONVECTION
a)
When heat transfers through waves.
b)
When heat transfers from objects that are touching.
c)
a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
d)
Heat traveling from the sun
4.
What kind of heat transfer happens when the sun is heating your body?
a)
Conduction
b)
Radiation
c)
Convection
d)
Density
5.
What heat transfer happens when you burn your hand by touching a fire?
a)
Radiation
b)
Conduction
c)
Convectio
d)
I don't know!!!!!!!!!!!
6.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
7.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
d)
It can travel high to low and low to high.
8.
Name this simple machine.
a)
Lever
b)
Wedge
c)
Pulley
d)
Inclined Plane
9.
Name this simple machine.
a)
Pulley
b)
Wheel and Axle
c)
Inclined Plane
d)
Lever
10.
Name this simple machine.
a)
Wheel and Axle
b)
Lever
c)
Pulley
d)
Wedge
11.
Name this simple machine.
a)
Wheel and Axle
b)
Lever
c)
Pulley
d)
Wedge
12.
Name this simple machine.
a)
Inclined Plane
b)
Lever
c)
Pulley
d)
Wedge
13.
Name this simple machine.
a)
Screw
b)
Lever
c)
Pulley
d)
Wedge
14.
Which energy transformation best describes a student listening to music from their phone?
a)
Thermal to Chemical
b)
Chemical to Light
c)
Electrical to Sound
d)
Sound to Light
15.
What type of energy transformation best describes holiday lights plugged into an outlet?
a)
Thermal to Chemical
b)
Chemical to Radiant
c)
Electric to Radiant
d)
Kinetic to Electrical
16.
What kind of energy does food provide?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
17.
Radiant Energy is best described as
a)
Electromagnetic Energy
b)
Energy of movement
c)
Light energy only
d)
Nuclear Energy
18.
Windmill farms utilize wind energy to create electricity. Wind moves the blades of the windmill to start the process. What type of energy does wind produce?
a)
Mechanical Energy
b)
Radiant Energy
c)
Chemical Energy
d)
Nuclear Energy
19.
____________ is the ability to cause change.
a)
Energy
b)
Force
c)
Friction
d)
Motion
20.
Energy due to motion is ____________ energy.
a)
Potential
b)
Energy
c)
Kinetic
d)
Friction
21.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
22.
__________ is stored energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
23.
When you are holding a book, energy is stored between the book and Earth; this type of energy is called ________ potential energy.
a)
Kinetic
b)
Potential
c)
Gravity
d)
Friction
24.
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
25.
Elastic potential energy is energy stored in object that are compressed or __________.
a)
movement
b)
stored
c)
harnessed
d)
pulled
26.
When you stretch a rubber band, you are storing __________ energy.
a)
kinetic
b)
potential
c)
none of the above
d)
all of the above
27.
What is an electromagnet?
a)
a temporary magnet made from current carrying wire around a magnetic metal core.
b)
a permanent magnet with a north and south pole
28.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
29.
Which of the following is NOT part of an electromagnet?
a)
Wire
b)
Iron
c)
Toothpick
d)
Power source
30.
How are electromagnets different from magnets?
a)
magnets can be turned on/off
b)
you can turn an electromagnet on/off
c)
magnets are more powerful
d)
magnets have a North and South pole
31.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
32.
While electric current is flowing through a wire, what surrounds the wire?
a)
a magnetic field
b)
a glowing light
c)
neutrons
d)
protons
33.
The strength of the magnetic field of a electromagnet can be increased by
a)
Decreasing the number of coils.
b)
Increasing the number of coils
c)
Decreasing the current
d)
Increasing the resistance
34.
What's the transfer of electricity in a motor?
a)
chemical->mechanical
b)
electrical->mechanical
c)
mechanical->electrical
d)
physical->potential
35.
What the transfer of electricity in a generator?
a)
Mechanical->Electrical
b)
Physical->Potential
c)
Electrical->Mechanical
d)
Yogurt->Light
36.
What can you use to make an electromagnet?
a)
battery, nail, string
b)
battery, pencil, wire
c)
wire, battery, iron ore (nail)
d)
peanut butter, lampshade, handsanitizer
37.
A great conductor of energy is:
a)
wood
b)
plastic
c)
metal
d)
cloth
38.
Mittens help keep your hands warm in winter because:
a)
They are conductors of heat.
b)
They are fuzzy.
c)
They are conductors of electrical energy.
d)
They are insulators.
39.
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.
40.
The metal copper is there to:
a)
Provide a conductor for energy to flow from one place to another.
b)
Provide an insulator for energy to flow from one place to another.
c)
Provide an insulator to slow the flow of energy.
d)
Provide a conductor to slow the flow of energy.
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