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HEAT

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

HEAT IS...

a)

The amount of thermal energy in an object

b)

the transfer of thermal energy from the object with more temperature to the one with less temperature.

c)

BOTH ARE RIGHT

d)

ALL ARE WRONG

2.

HEAT TRAVELS BY...

a)

CONVECTION

b)

CONDUCTION

c)

RADIATION

d)

ALL ARE RIGHT

e)

ALL ARE WRONG

3.

WITH MORE THERMAL ENERGY WE HAVE ...

a)

MORE TEMPERATURE

b)

LESS TEMPERATURE

c)

MORE HEAT

d)

LESS HEAT

4.

Heat travels by a gas or a liquid in...

a)

CONVECTION

b)

CONDUCTION

c)

RADIATION

5.

Heat is transferred by electromagnetic waves in...

a)

CONDUCTION

b)

CONVECTION

c)

RADIATION

6.

CONDUCTORS...

a)

transfer thermal energy easily

b)

don´t transfer thermal energy easily

c)

transfer energy by electromagnetic waves

7.

when we pass from gas to liquid it is...

a)

melting

b)

evaporation

c)

condensation

d)

solidification

8.

When Thermal energy causes vibrations like in the train trucks...

a)

it´s melting

b)

it´s expansion

c)

it´s chemical changes

d)

it´s solidification

9.

in condensation...

a)

Gas gets thermal energy

b)

Gas loses molecules

c)

gas turns into solid

d)

molecules move faster

e)

Gas loses thermal energy

10.

molecules move faster in...

a)

melting and solidification

b)

melting and evaporation

c)

evaporation and expansion

d)

condensation and solidification

11.

Chemical changes ...

a)

can´t be reversed

b)

can be reversed

c)

can be molecules

12.

Two objects in contact, with different temperatures, the hotter transfers heat to the colder object. This is...

a)

MELTING

b)

CONDUCTION

c)

RADIATION

d)

CONDENSATION

e)

MELTING

13.

The transfer of thermal energy from the object with more temperature to the one with less temperatura is...

a)

Heat

b)

Temperature

c)

Solidification

d)

Expansion

14.

An example of insulator is….

a)

wood

b)

metal

c)

water

d)

molecules

15.

a mixture for a cake heated in an oven is an example of ...

a)

melting

b)

expansion

c)

chemical changes

d)

radiation