Free Printable Heat Transfer

Worksheets

Heat Transfer

Total questions: 15

Worksheet time: 8mins

Name

Class

Date

What statement best describes convection?

Heat is transferred through direct contact.

Heat is transferred by electromagnetic waves.

Heat moves in cycles within fluids (liquids and gases) due to temperature differences.

Heat energy moves through empty space.

An example of heat transfer by radiation would be....

Feeling the warmth of the sun.

Boiling water in a pot.

Touching a metal spoon heated in a pan.

Air moving around a heated object.

The main characteristic of conduction is...

Heat is transferred through electromagnetic waves.

Heat is transferred through direct contact between objects.

Heat rises because of density differences.

Heat causes air to move in a circular pattern.

What is the main difference between conduction and convection?

Conduction requires electromagnetic waves, while convection requires direct contact.

Conduction occurs in solids, while convection happens in fluids (liquids or gases).

Convection transfers heat more quickly than conduction.

Conduction can only occur in gases, while convection happens in all states of matter.

Warm air rises during convection currents....

Because warm air is less dense than cool air.

Because warm air is more dense than cool air.

Because air is a solid.

Because heat can only move downward.

Wind and weather changes are caused by....

The Earth’s magnetic field.

Electromagnetic radiation.

The rotation of the Earth.

Convection currents in the atmosphere.

Three of these are forms of heat transfer, which one is not?

Conduction

Convection

Radiation

Reflection

Sunlight travels _______ to reach the Earth

1 million km

150 million km

1 billion km

10 million km

The Law of Conservation of Energy states what?

Energy can be created or destroyed.

Energy can only be transformed into heat.

Energy is always conserved within a system.

Energy will always be used in one direction.

10.

When energy is transformed in a system what happens?

Energy is conserved, but it may change forms.

The total energy in the system increases.

Some energy is lost and cannot be used.

Energy is destroyed and cannot be used again.

11.

Which of the following shows thermal energy being transformed to do work?

A train engine heating water creates steam that moves a piston.

Water being boiled to evaporate.

The Sun warming the Earth's surface.

A metal object expanding when heated.

12.

The role of convection currents in the atmosphere is that....

They help create electrical currents.

They cause air to move, creating weather patterns.

They transfer thermal energy through direct contact.

They absorb sunlight and reflect it back into space.

13.

One of these is true about conduction, which one is it?

It occurs only in gases and liquids.

It requires a medium, such as air, to transfer heat.

It occurs when two objects are in direct contact with each other.

It can only occur in solids.

14.

Which does not require matter?

Conduction

Convection

Radiation

All forms require matter

15.

During energy transfers, thermal energy is used to:

Freeze objects.

Cause chemical reactions.

Do work.

Generate sound.

100 %

Heat Transfer

Total questions: 15

Worksheet time: 8mins

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