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WorksheetsUnit 2 Pre-Assessment
Total questions: 21
Worksheet time: 21mins
Name
Class
Date
1.
Which material does not conduct electricity?
a)
gold
b)
iron
c)
brass
d)
wood
2.
A pan containing hot water is left on the counter and becomes cool mainly due to _________.
a)
cold air penetrating the hot water.
b)
hot water reacting with the metal pan.
c)
heat from the water moving into the cooler air.
d)
water molecules moving apart.
3.
Savannah is using a metal spoon to stir and notices that thermal energy from the pan made the spoon ___.
a)
dry
b)
hot
c)
wet
d)
cold
4.
Electricity travels well through ______.
a)
Wood
b)
Rubber
c)
Plastic
d)
Copper
5.
Mariana notices that the ice in her water is melting after sitting outside. Why is this?
a)
Heat moves from the ice to the water.
b)
Cold moves from the ice into the water.
c)
Cold moves from the water into the room.
d)
Heat moves from the air into the water.
6.
What type of energy is being transferred to a pot to make water boil?
a)
light
b)
potential
c)
sound
d)
heat
7.
A brick exposed to sunlight becomes warm. How is energy from the Sun transferred to the brick?
a)
Convection
b)
Conduction
c)
Radiation
d)
Reflection
8.
Which process is responsible for moving hot air inside a fireplace up the chimney?
a)
Conduction
b)
Convection
c)
Radiation
d)
Reflection
9.
Plastic doesn't conduct electricity well, so it is used to cover __________.
a)
wood
b)
rubber
c)
liquids
d)
metal
10.
When warm air rises through currents, this is known as _______.
a)
Convection
b)
Conduction
c)
Radiaton
d)
Potential
11.
Which event is an example of conduction?
a)
Sunlight travels from the Sun to warm the Earth
b)
Boiling water in a pot warms the spoon sitting in the pot.
c)
Cold water is heated in a microwave
d)
A fire in a fireplace warms the air in a room.
12.
Sunlight goes through windows and makes the car seats hot. What type of energy flow is this?
a)
Conduction
b)
Convection
c)
Insulation
d)
Radiation
13.
McKenna put ice in her hot tea to cool it down. What is the flow of thermal energy?
a)
from the pitcher to the tea
b)
from the ice to the pitcher
c)
from the tea to the ice
d)
from the ice to the tea
14.
These materials allow energy to flow easily through them.
a)
Conductors
b)
Insulators
15.
In order for a material to be effective for cooking, it must have which physical property?
a)
poor conductor of heat
b)
good conductor of heat
c)
low flexibility
d)
high flexibility
16.
These materials DO NOT allow energy to flow easily through them.
a)
Conductors
b)
Insulators
17.
______ makes a good conductor.
a)
Wood
b)
Plastic
c)
Rubber
d)
Steel
18.
Which of these is a good insulator?
a)
Copper
b)
Gold
c)
Silver
d)
Cotton
19.
Why would Ms. Jackson want a sleeping bag made of down feathers?
a)
Feathers are a good conductor
b)
Feathers are heavy
c)
Feathers are soft
d)
Feathers are a good insulator
20.
If Mr. Ross was going to cook something on the stove, the material he uses to cook with must _____________.
a)
be a good insulator
b)
have a low melting point
c)
be a good conductor
d)
have a low density
21.
Which would be the best conductor of electricity?
a)
Water
b)
Oxygen
c)
Sulfur
d)
Copper
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