Sci, Unit 3, Lesson 4, Thermal Energy Conductivity

1.

Multiple Choice

5 mins

1 pt

A thermal conductor allows energy to flow _____.

not at all

easily

over the Internet

2.

Multiple Choice

5 mins

1 pt

A good _____ does NOT allow energy to flow easily.

conductor

metal

insulator

3.

Multiple Choice

5 mins

1 pt

The ocean is cold even in summer because water _____.

has high specific heat

has low specific heat

is insulated from sunlight

4.

Multiple Choice

5 mins

1 pt

A foam picnic cooler keeps food cold on a hot day. What is this an example of?

a conductor

an insulator

thermal expansion

5.

Multiple Choice

5 mins

1 pt

Wood and styrofoam are examples of _____.

conductors

insulators

cold objects

6.

Multiple Choice

5 mins

1 pt

All of the following are conductors except _______.

metal spoon

wire

plastic spoon

7.

Multiple Choice

5 mins

1 pt

Mrs. Tomooka stirred a hot drink in a styrofoam cup with a metal spoon. In what order did the thermal energy reach her hand?

cup-> hot drink-> hand

hand-> spoon-> hot drink

hot drink-> spoon-> hand

8.

Multiple Choice

5 mins

1 pt

Mrs. Agliolo poured some coffee into a cup and stirred it with a metal spoon. She noticed the spoon was really warm. What is the best explanation for this?

The spoon is a conductor

The spoon is an insulator

The spoon reflects the heat

9.

Multiple Choice

5 mins

1 pt

A material's ability to transfer heat by collisions between its particles is called _____.

heat

cold

thermal conductivity

10.

Multiple Choice

5 mins

1 pt

A ___ is a device for measuring temperature.

conductor

insulator

thermometer

11.

Multiple Choice

5 mins

1 pt

Gloves help keep your hands warm in winter because:

They are conductors of heat.

They are fuzzy.

They are insulators.

12.

Multiple Choice

5 mins

1 pt

What is a unit of temperature?

Celsius

Pounds

Pizza

13.

Multiple Choice

5 mins

1 pt

A small pot would get hot faster than a large pot. (Both pots are made of the same material.)

True

False

14.

Multiple Choice

5 mins

1 pt

The greater the mass of a substance, the more thermal energy is needed to change its temperature.

True

False

15.

Multiple Choice

5 mins

1 pt

Different substances (copper, water, glass) have different specific heats.

True

False

16.

Multiple Choice

5 mins

1 pt

Specific heat is the amount of thermal energy required to DECREASE the temperature of 1 kg of a material by 1 degree Celsius.

True

False

17.

Multiple Choice

5 mins

1 pt

In addition to the type of material and the mass of material, surface area, thickness and reflectivity and absorbency are factors in how thermal energy is transferred.

True

False

18.

Multiple Choice

5 mins

1 pt

The color _____ REFLECTS all radiated light energy.

red

black

white

19.

Multiple Choice

5 mins

1 pt

The color _____ ABSORBS all radiated light energy.

red

black

white

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