Free Printable Ls 4 HEAT

Worksheets

Ls 4 HEAT

Total questions: 16

Worksheet time: 11mins

Name

Class

Date

Why does warm air rise and cool air sink?

Warm air is less dense than cooler air.

Warm air is more dense than cooler air.

Warm air weighs less than cooler air.

Warm air weighs more than cooler air.

When would an object left in a room temperature room stop transferring heat?

When it has reached the same temperature as the room temperature air

When it has lost all of its thermal energy

When it has gained all of the air's thermal energy

When it has gained or lost all of it's coldness to the air

When I drink coffee in the morning, I warm my hands on the mug by what type of heat transfer?

conduction

convection

radiation

coziness

Heat is defined as

the transfer of thermal energy from one object to another due to temperature difference

the temperature of a solid, liquid, or gas

The kinetic energy of a solid, liquid, or gas.

The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?

radiation

conduction

convection

insulation

Water boils at 212⁰F, which is equivalent to__.

273 K

0⁰ C

100⁰C

37⁰C

Near the ceiling of a room the air is warmer; the warm air rises because of

conduction

convection

radiation

If you are holding an ice cube, where will the heat go?

into the ice cube

into your hand

As part of a lab experiment, Tasha drops a metal cube into a beaker of water, as shown in the figure below.

After energy in the form of heat transfers between the substances, what is the final temperature of the water?

The final temperature is 25 °C because there is more water than metal.

The final temperature is 50 °C because the metal warms the water to the temperature of the metal.

The final temperature is between 25 °C and 50 °C because energy is transferred from the metal to the water.

The final temperature is between 25 °C and 50 °C because most of the thermal energy is lost to the air around the substances.

10.

Emerson places a beaker of water on a hotplate and turns the hotplate on. The temperature in the room is 25 ºC. After the water heats to 75 ºC, she adds pieces of ice to the beaker.

Which of the following describes a transfer of heat energy that occurs during this experiment?

from the air to the water

from the ice to the beaker

from the water to the ice

from the water to the hotplate

11.

Device/Object that measures temperature.

Thermal energy

Temperature

Thermometer

Heat

12.

A temperature scale that is used mostly in United States.

According to it, water freezes at 32 degrees and boils at 212 degrees.

Celsius

Fahrenheit

Kelvin

All of them

13.

Heat moves by ______ when it travels through waves.

radiation

conduction

insulator

convection

14.

Which direction is heat flowing in the picture?

from the hand to the ice

from the ice to the hand

heat is not being transferred

there is no way to tell

15.

Molecules are always ____________________ (with the exception of absolute zero).

in motion

frozen

16.

What is the freezing/melting point of water of the Fahrenheit scale?

$-273^oF$

$0^oF$

$32^oF$

$273^oF$

Reset

Ls 4 HEAT

Total questions: 16

Worksheet time: 11mins

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