Worksheets1st Quarter Exam - Energy
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
Electric fields are often associated with what other kind of field?
a)
nuclear fields
b)
gravity fields
c)
magnetic fields
d)
particle fields
2.
As energy transforms from one form to another, a bit of ______________ energy is also transferred.
a)
Mechanical
b)
Chemical
c)
Thermal
d)
Electrical
3.
Analyze the picture and determine the method of heat transfer being shown.
a)
Radiation
b)
Conduction
c)
Classification
d)
Convection
4.
An electromagnet requires what type of energy to work?
a)
mechanical
b)
electrical
c)
chemical
d)
A. potential
5.
What method of heat transfer occurs between objects that touch or are very close?
a)
Radiation
b)
Conduction
c)
Transpiration
d)
Convection
6.
In a hydroelectric power plants, mechanical kinetic energy of moving water is transformed into what form of energy?
a)
mechanical
b)
electrical
c)
chemical
d)
potential
7.
Heat energy is transferred from areas of ---
a)
warmer temperatures to areas of warmer temperatures
b)
cooler temperatures to areas of warmer temperatures
c)
warmer temperatures to areas of cooler temperatures
d)
cooler temperatures to areas of cooler temperatures
8.
What device is made of coils of wire with an electrical current passing through it in order to generate a magnetic field?
a)
electromagnet
b)
circuit protector
c)
electron magnet
d)
magnetic circuit
9.
Which device uses mechanical energy to produce electrical energy?
a)
battery
b)
electric motor
c)
magnet
d)
generator
10.
In an electric motor, the energy transformation begins as ----
a)
electrical and becomes chemical
b)
mechanical and becomes electrical
c)
electrical and becomes mechanical
d)
mechanical and becomes chemical
11.
The diagram shows water rising as it heats and cooler water at the top sinking. This is an example of what method of heat transfer?
a)
Radiation
b)
Conduction
c)
Relationship
d)
Convection
12.
The reason batteries eventually lose power is because the electrical energy will be transformed into
a)
a parallel circuit
b)
other forms of energy
c)
a series
d)
electrical energy
13.
When electrical energy stops flowing in a circuit, it is likely the circuit ---
a)
is open
b)
needs a light bulb
c)
is closed
d)
requires magnetic fields
14.
In what ways is a turbine (a large wheel with blades) turned so that it can turn the magnet in a generator?
a)
steam and solar power
b)
moving water, wind, and steam
c)
wind, steam, and electricity
d)
moving water, wind, and solar power
15.
The key in the wind-up toy is wound tight. When it is released, the toy will move. When does the toy have the greatest potential energy?
a)
Before it is wound
b)
After it is wound
c)
While it is in motion
d)
When it stops
16.
In large generators, ____________ rotate inside a coil of wire to produce an electric current.
a)
magnets
b)
circuits
c)
batteries
d)
transformers
17.
What two forces are required for generators and electric motors to work?
a)
magnetism and thermal
b)
electricity and thermal
c)
electricity and magnetism
d)
magnetism and radiant
18.
The Earth’s surfaces gain heat energy through which method of heat transfer?
a)
Radiation
b)
Conduction
c)
Sublimation
d)
Convection
19.
What force does a magnetic field apply without actually touching the object?
a)
push or pull
b)
gravity
c)
friction
d)
pressure
20.
The picture shows a magnet spinning inside a coil of wire forming an electric current. What is this device?
a)
battery
b)
electric motor
c)
magnet
d)
generator
21.
What kind of heat transfer does not require any matter as it travels in waves?
a)
Radiation
b)
Conduction
c)
Evaporation
d)
Convection
22.
The fan that turns the magnet inside a generator is called a -----
a)
generator
b)
turbine
c)
electric motor
d)
electromagnet.
23.
Analyze the picture and determine the method of heat transfer shown.
a)
Radiation
b)
Conduction
c)
Classification
d)
Convection
24.
Kei’s parents made her put on many layers of clothing before going out in the snow. What purpose did these layers serve?
a)
The layers acted as conductors, transferring Kei’s body heat out into the air.
b)
The layers acted as insulators, slowing Kei’s body heat from escaping.
c)
The layers added friction to his movements so Kei wouldn’t slip.
d)
The layers allowed Kei’s body heat to radiate out into the air.
25.
What method of heat transfer occurs in liquids or gases?
a)
Radiation
b)
Conduction
c)
Classification
d)
Convection
26.
Analyze the picture and determine the method of heat transfer shown.
a)
Radiation
b)
Conduction
c)
Transpiration
d)
Convection
27.
Polar bears live where it is very cold. The bear has thick layers of fat. What is the purpose of the fat?
a)
The fat helps the bear swim.
b)
The fat insulates and keeps the bear warm.
c)
Females use the fat to feed babies.
d)
Fat in male bears help attract a mate
28.
As the girl moves from left to right, at which point will the maximum kinetic energy be reached?
a)
Point A
b)
Point B
c)
Point C
d)
Point B and C
29.
Rubber bands potential can be increased by stretching the band. What type of potential is this?
a)
Gravitational
b)
Kinetic
c)
Elastic
d)
Mechanical
30.
Solar cells, batteries and generators are sources of what form of energy?
a)
radiant
b)
electrical
c)
chemical
d)
thermal
100 %
