Worksheets4th Grade 2nd 6 Weeks Brackin 20
Total questions: 17
Worksheet time: 6mins
Name
Class
Date
1.
What form of energy caused the ice to melt in a cup left from the night before?
a)
sound energy
b)
light energy
c)
thermal energy
d)
mechanical energy
2.
Which substance best completes the table above?
a)
Rainwater
b)
Clouds
c)
Steam
d)
Brick
3.
Which form of energy makes the room brighter when a lamp is switched on?
a)
Sound energy
b)
Electrical energy
c)
Chemical energy
d)
Light energy
4.
All of the following are examples of thermal energy EXCEPT the energy produced by —
a)
rubbing your hands together
b)
a hot plate boiling water
c)
plugging in a portable radio
d)
burning wood in a fireplace
5.
Which of the following is the best example of a student using electrical energy?
a)
Using scissors to cut a piece of yarn
b)
Writing down the homework assignment
c)
Knocking on the classroom door
d)
Turning on the light in the classroom
6.
Which of the following is an important safety practice during a lab investigation of thermal energy?
a)
Making sure your hands are dry when plugging in a sound recorder
b)
Using insulated gloves when handling heated beakers
c)
Remembering not to look directly at the Sun while investigating shadows
d)
Informing the teacher of a broken graduated cylinder
7.
Which form of energy will be demonstrated when the woman pushes the wheelchair?
a)
mechanical
b)
electrical
c)
light
d)
thermal
8.
On a windy day, a student flew a kite in an open field. What type of energy is used to fly a kite?
a)
Electrical energy
b)
Mechanical energy
c)
Sound energy
d)
Thermal energy
9.
Which statement does NOT accurately represent thermal energy?
a)
Thermal energy can be transferred from one object to another.
b)
Humans can detect thermal energy with their eyes.
c)
Thermal energy can cause a change in the state of matter.
d)
An example of thermal energy can include boiling water.
10.
Which object is the best conductor of electricity?
a)
A ceramic mug
b)
A plastic fork
c)
A penny
d)
A wooden craft stick
11.
Which statement is true about the picture above?
a)
The metal pan causes the water to boil rapidly.
b)
The metal pan is a poor conductor of thermal
c)
The wooden handle is a good insulator of thermal energy.
d)
The wooden handle is a good conductor of thermal energy.
12.
Which of the following items will best allow energy to flow through an electric circuit?
a)
Wooden craft stick
b)
Glass candy dish
c)
Flexible drinking straw
d)
Retractable metal antenna
13.
Which object is most likely to conduct electricity?
a)
Iron nail
b)
Plastic straw
c)
Wooden stick
d)
Glass lens
14.
Which of the following materials are good conductors of thermal and electrical energy?
a)
Paper
b)
Glass
c)
Copper
d)
Wood
15.
What best describes the conductors and insulators found in the electrical plug pictured below?
a)
The metal posts are used to insulate electricity.
b)
The plastic cover is used to conduct electricity.
c)
The plastic and metal work together as conductors.
d)
The plastic insulates electricity, and the metal conducts it.
16.
Which substances are insulators of thermal energy?
a)
Metal, plastic, rubber
b)
Wood, plastic, paper
c)
Plastic, metal, wood
d)
Foam, rubber, metal
17.
All of the following could be reasons a flashlight failed to work EXCEPT
a)
There were no batteries in the flashlight.
b)
The lens protecting the light bulb was scratched.
c)
He didn't turn the switch from off to on.
d)
The flashlight batteries were old.
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