Free Printable Heat Transfer Ways

Worksheets

Heat Transfer Ways

Total questions: 20

Worksheet time: 19mins

Name

Class

Date

In ____________ , heat is transferred from one particle of matter to another without the movement of the matter.

conduction

convection

convection current

induction

In ____________, heat is transferred by the currents within a fluid.

conduction

convection

convection currents

radiation

In ___________ , energy is transferred by electromagnetic waves.

convection

radiation

conduction

induction

1. Hot coffee is stirred with a spoon, the spoon gets hot due to

Conduction

Convection

Radiation

The sun shines down on this family as the play on the beach.

conduction

convection

radiation

A group of friends gather around a fire to stay warm.

conduction

convection

radiation

The Gulf Stream is a current that brings warm ocean water from the south to the north.

conduction

convection

radiation

Walking on the warm sand sand with your bare feet.

conduction

convection

radiation

Blow drying your wet hair.

conduction

convection

radiation

10.

The man goes to take the hot pot off the stove with his bare hands.

conduction

convection

radiation

11.

Warm air rises and the cool air sinks.

conduction

convection

radiation

12.

The baby chickens are kept warm from the heat lamps.

conduction

convection

radiation

13.

A ______________ is a material that transfers thermal energy well.

insulator

protector

conductor

reflector

14.

A circular movement of matter with different amounts of thermal energy create a ...

ocean current

thermal current

convection current

current

15.

A microwave oven uses which of the following to heat foods.

Microwave elves

Radiation

Convection

Conduction

16.

Wood, straw, and wool are materials that are good __________________.

insulators

conductors

reflectors

generators

17.

Ironing a shirt is an example of...

condensation

conduction

convection

radiation

18.

Which of the following is the best example of conduction?

A light bulb warming a lampshade

An egg cooking in a frying pan

Water boiling in a pot

Gases circulating in the atmosphere

19.

A wooden box of total surface area 1.2 m² is used to keep 6.0 kg ice. The initial temperature of the ice is 0°C. The thickness of the wall is 1.5 cm. The temperature of the room is 32°C. How long does it takes for all the ice in the box to melt?(K_wood=0.52 W m^-1K^-1, specific latent heat of fusion of ice=3.3x10⁵ J kg^-1)

510 s

1500 s

3900 s

7800 s

20.

Two uniform copper rods R and S are joined and are well insulated as shown in the diagram above. The length of rod R is twice that of rod S but the cross-sectional area of rod R is half that of rod S. What is the temperature at the joint of rod R and rod S? ( HINT: Heat Currents in two rods must be equal! Otherwise steady-state conditions could not exist)

60°C

67°C

75°C

90°C

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Heat Transfer Ways

Total questions: 20

Worksheet time: 19mins

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