WorksheetsEnergy Homework
Total questions: 25
Worksheet time: 15mins
Name
Class
Date
1.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
2.
Energy that is transferred by objects touching is called?
a)
Conduction
b)
Convection
c)
Induction
d)
Radiation
3.
The ultimate source of energy is:
a)
The sky
b)
The sun
c)
Plants
d)
Movement
4.
smooth, shiny surfaces
a)
reflect
b)
refract
c)
absorb
5.
rainbow
a)
light is reflected
b)
light is refracted
c)
light is absorbed
6.
prism
a)
reflection
b)
refraction
c)
absorption
7.
Light bends when it is
a)
refracted
b)
reflected
c)
absorbed
8.
Light travels
a)
around corners
b)
in a straight line
9.
Electrical Energy is transferred to _____ Energy in an oven.
a)
Thermal
b)
Solar
c)
Electrical
d)
Nuclear
10.
The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —
a)
solar
b)
light
c)
thermal
d)
mechanical
11.
Electrical -> Mechanical -> Sound
a)
A triple beam balance measuring an object’s mass
b)
A pencil sharpener plugged into a wall outlet
c)
A projector displaying a diagram on the screen
d)
A working flashlight used to light up a dark corner
12.
Which best describes the process of convection?
a)
Convection is the primary way heat travels through rays.
b)
Convection is the primary way heat travels through metals.
c)
Convection is the primary way heat travels through appliances.
d)
Convection is the primary way heat travels through liquids and gasses.
13.
What are some uses for convex lenses?
a)
Eye glasses
b)
Camera lenses
c)
Telescopes
d)
All of the above
14.
All matter is made of _____ that are constanly moving.
a)
insulators
b)
particles
c)
convection
d)
pieces of plastic
15.
Which material would NOT make a good baking pan (for high temperatures in the oven)?
a)
aluminum
b)
plastic
c)
steel
d)
glass
16.
Glass, steel, and aluminum are good examples of ______.
a)
insulators
b)
thermal energy
c)
conductors
d)
radiation
17.
Plastic foam, wood, and rubber are good examples of ______.
a)
conductors
b)
insulators
c)
solar energy
d)
convection
18.
The heat from a hot burner to a pot is transferred by ______.
a)
convection
b)
insulation
c)
radiation
d)
conduction
19.
Insulation is used in the walls of a building to ____.
a)
trap solar energy
b)
keep thermal energy from moving through the walls
c)
conduct thermal energy
d)
keep cold air from moving through the walls
20.
On a hot summer day, which shirt would you put on to make sure you stay cool while you are outside playing?
a)
A black shirt because it reflects the sun's energy.
b)
A white shirt because it reflects the sun's energy.
c)
A black shirt because it absorbs the sun's energy.
d)
A white shirt because it absorbs the sun's energy.
21.
How are heat from the sun and heat from a campfire alike?
a)
They move by radiation.
b)
They move by convection.
c)
They move by conduction.
d)
They are solar energy.
22.
If an object has particles that are moving very quickly, the object 's temperature is probably _____.
a)
cold
b)
slow
c)
big
d)
hot
23.
Heat from the sun travels to Earth by _____.
a)
conduction
b)
convection
c)
insulation
d)
radiation
24.
What is the first step in engineering?
a)
define the problem
b)
build a prototype
c)
identify criteria
d)
share results
25.
The only way to know if a design will work in real world conditions is to build a model or prototype. Which step is this?
a)
Ask
b)
Imagine
c)
Plan
d)
Create
100 %
